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Salt Lake Potash (SO4) – September 2018 Quarterly Report and Appendix 5B

The Board of Salt Lake Potash Limited (the Company or SLP) is pleased to present its Quarterly Report for the period ending 30 September 2018.

The Company’s primary focus is progressing the development of the Goldfields Salt Lakes Project (GSLP), intended to be the first salt-lake brine Sulphate of Potash (SOP) production operation in Australia.

Highlights for the quarter and subsequently include:

APPOINTMENT OF MANAGING DIRECTOR / CEO

  • Highly regarded mining executive Tony Swiericzuk appointed as Managing Director and Chief Executive Officer of Salt Lake Potash effective 5 November 2018.
  • Mr Swiericzuk recently spent 9 years with Fortescue Metals Group, including as Director Business Development and Exploration, General Manager Christmas Creek Mine and General Manager Port.
  • Mr Swiericzuk’s initial focus will be the rapid development of Australia’s first SOP operation.

LAKE WAY

Maiden Resource for Lake Way

  • Measured mineral resource estimate of 32,000t SOP for the Williamson Pit Brine. The resource grade of 25kg/m3of SOP is easily the highest grade SOP brine resource in Australia.
  • Indicated resource estimate of 1,900,000t SOP calculated from Total Porosity (Stored) and 490,000t calculated from Drainable Porosity reported for the Blackham Resources tenements.

Scoping Study for Low Capex, High Margin Demonstration Plant

  • The Company completed a Scoping Study on the development of a 50,000tpa SOP Demonstration Plant at Lake Way that supports a low capex, highly profitable, staged development model, with total capital costs of approximately A$49m and average cash operating costs (FOB) of approximately A$387/t.
  • The Demonstration Plant is intended to validate the technical and commercial viability of brine SOP production from the GSLP, providing the basis to build a world class, low cost, long life SOP operation across the 9 lakes in the GSLP.

Process Testwork

  • Completed validation testwork that confirmed the process flowsheet to be used in the Lake Way Demonstration Plant Scoping Study.
  • A bulk field evaporation trial processing both Lake Way and Williamson Pit brine is ongoing, to confirm the modelled evaporation parameters and produce harvest salt samples for SOP production.

Geotechnical Investigations

  • The Company significantly progressed the design of the Williamson Ponds to dewater the Williamson Pit at Lake Way.

Approval to Construct Williamson Ponds

  • The Department of Mines, Industry Regulation and Safety (DMIRS) gave environmental approval for the pond system to dewater the Williamson Pit at Lake Way.

LAKE WELLS

MOU with Australian Potash to study sharing infrastructure and other costs at Lake Wells

  • The Company and Australian Potash Limited (ASX: APC) entered into a Memorandum of Understanding and Co-operation Agreement to undertake a joint study of the potential benefits of development cost sharing for each Company’s projects at Lake Wells.

Granting of Mining Lease

  • The Company’s first Mining Lease at Lake Wells covering 87.4 km2 was granted, a significant milestone in the Project’s development pathway.

LAKE BALLARD

  • A fieldwork programme of 38 test pits was completed over the extent of the lake area.  The test pits enabled geology, brine chemistry and hydraulic parameters to be understood. 
  • Commenced site evaporation trials to confirm pathway for salt production in field conditions.

SOP SAMPLE PRODUCTION

  • SOP granulation testwork produced initial samples for marketing and product quality assessment.
  • Testwork began in SLP’s in-house laboratory to replicate process flowsheet on larger batch scale. 

 

APPOINTMENT OF MANAGING DIRECTOR / CEO

Subsequent to the end of the quarter, the Company appointed Tony Swiericzuk as Managing Director and Chief Executive Officer (CEO), effective 5 November 2018.

Mr Swiericzuk is a Mining Engineer with outstanding credentials as a builder and operator of mining projects, having recently been General Manager of the Christmas Creek Mine from 2012 to 2017. He oversaw the construction, commissioning and ramp-up of this project from 15Mtpa to 60Mtpa in his initial 2 year period, then proceeded to optimise the operation and help drive FMG to become the world’s lowest cost iron ore producer.

In his initial years at FMG Mr Swiericzuk was General Manager Port Operations in Port Hedland and managed the ramp up from 20Mtpa to 60Mtpa from 2009 to 2011.

Mr Swiericzuk has the ideal operating and commercial experience to rapidly deliver on the exceptional potential of the Goldfields Salt Lakes Project (GSLP). The GSLP is a technically advanced, sustainable and highly scalable project to produce sought-after chlorine free fertilisers for the export and domestic markets.

Mr Swiericzuk’s diverse background in large scale logistics operations will be a substantial benefit to the development of the GSLP and he also intends to utilise the tried and proven methods which were essential in making FMG the lowest cost iron ore producer in the world.

Current CEO of the Company, Mr Matthew Syme, was integral to Mr Swiericzuk’s appointment and will remain a director and consultant to the Company, ensuring a seamless handover.

THE GOLDFIELDS SALT LAKES PROJECT

The Company’s long term plan is to develop an integrated SOP operation, producing from a number (or all) of the lakes within the GSLP, after confirming the technical and commercial elements of the Project through construction and operation of a Demonstration Plant producing up to 50,000tpa of SOP.

The GSLP has a number of important, favourable characteristics:

  • Very large paleochannel hosted brine aquifers at each Lake, with chemistry amenable to production of salts by solar evaporation for SOP production, extractable from both low cost trenches and deeper bores;
  • Over 3,300km2 of playa surface, with in-situ clays suitable for low cost on-lake pond construction;
  • Excellent evaporation conditions;
  • Excellent access to transport, energy and other infrastructure in the major Goldfields mining district;
  • Lowest quartile capex and opex potential based on the Lake Wells Scoping Study;
  • Clear opportunity to reduce transport costs by developing lakes closer to infrastructure and by capturing economies of scale;
  • Multi-lake production offers operational flexibility and diversification of risk from localised weather events;
  • The very high level of technical validation already undertaken at Lake Wells substantially applies to the other lakes in the GSLP; and
  • Potential co-product revenues, particularly where transport costs are lowest

Salt Lake Potash will progressively explore the lakes in the GSLP with a view to estimating resources for each Lake, in parallel with the development of the Demonstration Plant. Exploration of the lakes will be prioritised based on likely transport costs, scale, permitting pathway and brine chemistry.

The Company’s Memorandum of Understanding with Blackham Resources Limited (see ASX Announcement dated 12 March 2018) offers the potential for an expedited path to development at Lake Way, possibly the best site for a 50,000tpa Demonstration Plant in Australia.

A Scoping Study on the development of a 50,000tpa SOP Demonstration Plant at Lake Way was completed during the quarter, supporting a low capex, highly profitable, staged development model, with total capital costs of approximately A$49m and average cash operating costs (FOB) of approximately A$387/t.

LAKE WAY

Lake Way is located in the Goldfields region of Western Australia, less than 15km south of Wiluna. The surface area of the Lake is over 270km2.

Salt Lake Potash holds two Exploration Licences (one granted and one under application) covering most of Lake Way, including the paleochannel defined by previous exploration. The northern end of the Lake is largely covered by a number of Mining Leases, held by Blackham Resources Limited (Blackham), the owner of the Wiluna Gold Mine.

The Company entered into a Memorandum of Understanding with Blackham in March 2018 to investigate the development of an SOP operation on Blackham’s existing Mining Leases at Lake Way, including, initially, a 50,000tpa Demonstration Plant.

The Wiluna region is an historic mining precinct dating back to the late 19th century. It has been a prolific nickel and gold mining region with well developed, high quality infrastructure in place.

The Goldfields Highway is a high quality sealed road permitted to carry quad road trains and passes 2km from the Lake. The Goldfields Gas Pipeline is adjacent to SLP’s tenements, running past the eastern side of the Lake.

Lake Way has some compelling advantages which potentially make it an ideal site for an SOP operation, including:

  • Likely substantial capital and operating savings from sharing overheads and infrastructure with the Wiluna Gold Mine, including the accommodation camp, flights, power, maintenance, infrastructure and other costs.
  • The site has excellent potential freight solutions, being adjacent to the Goldfields Highway, which is permitted for heavy haulage, quad trailer road trains to the railhead at Leonora, or via other heavy haulage roads to Geraldton Port.
  • A Demonstration Plant would likely be built on Blackham’s existing Mining Leases.
  • SLP would dewater the existing Williamson Pit on Lake Way, prior to Blackham mining. The pit contains an estimated 1.2GL of brine at the exceptional grade of 25kg/m3 of SOP. This brine is potentially the ideal starter feed for evaporation ponds, having already evaporated from the normal Lake Way brine grade, which averages over 14kg/m3.
  • The high grade brines at Lake Way will result in lower capital and operating costs due to lower extraction and evaporation requirements.
  • There would be substantial savings to both parties from co-operating on exploration activities on each other’s ground.
  • The presence of clays in the upper levels of the lake which should be amenable to low cost, on-lake evaporation pond construction.

Mineral Resource

A maiden Mineral Resource Estimate for Lake Way (Blackham tenements only) was estimated by Groundwater Science Pty Ltd, an independent hydrogeological consultant with substantial salt lake brine expertise.

Areas outside the Blackham tenements at Lake Way, including the remaining playa surface covered by SLP tenements and applications, were not considered as part of the Mineral Resource estimate and provide significant future upside to increase resources at Lake Way.

Table 1: Lake Way Project – Mineral Resource Estimate (JORC 2012)

Total Mineral Resource Estimate (Blackham tenements only)  

Sediment Hosted Brine – Indicated (94%)

Playa Area

Lakebed Sediment Volume

Brine Concentration

Mineral Tonnage Calculated from Total Porosity

Mineral Tonnage Calculated from Drainable Porosity

K

Mg

SO4

Total Porosity

Brine Volume

SOP Tonnage

Drainable Porosity

Brine Volume

SOP Tonnage

(km2)

(Mm3)

(kg/m3)

(kg/m3)

(Kg/m3)

(Mm3)

(kt)

(Mm3)

(kt)

55.4

290

6.9

7.6

28.3

0.43

125

1,900

0.11

31.9

490

 

Williamson Pit Brine – Measured (6%)

Brine Volume (Mm3)

Potassium Conc.   (kg/m3)

Magnesium Conc.   (kg/m3)

Sulphate Conc.  

(kg/m3)

SOP Tonnage (kt)

1.26

11.4

14.47

48

32

Scoping Study

In July 2018, the Company completed a Scoping Study on development of a 50,000tpa sulphate of potash (SOP) Demonstration Plant at Lake Way that supports a low capex, highly profitable, staged development model.

The Demonstration Plant is supported by the Indicated resource estimate of 1,900,000t SOP calculated from Total Porosity (Stored) and 490,000t calculated from Drainable Porosity, a multiple of the resource required to support a 50,000tpa Demonstration Plant for 2-3 years.

The Demonstration Plant will produce up to 50,000tpa of high quality, standard SOP from hypersaline brine extracted from Lake Way via a system of shallow trenches.

The extracted brine will be transported to a series of solar evaporation ponds built on the Lake where selective evapo-concentration will precipitate potassium double salts in the final evaporation stage. These potassium-rich salts will be mechanically harvested and processed into SOP in a purification and crystallisation plant. The final product will then be transported for sale to domestic and international markets.

The Company has previously tested and verified, at Lake Wells, all the major technical foundations for production of SOP from salt lake brine under actual site conditions and across all seasons. These technical achievements are broadly applicable across all the lakes in the GSLP and form part of the inputs into the Scoping Study.  Subsequent testing of salts generated from Lake Way brine at the Saskatchewan Research Council (“SRC”) (Canada) has confirmed the validity of the GSLP process flowsheet selected for the Lake Way Demonstration Plant.

The Scoping Study established the indicative costs of the Demonstration Plant to +/- 30% accuracy for Operating Costs and -10%/+30% for Capital Expenditure.

Major Study Parameters

Table 2:  Key Assumptions and Inputs 

Maximum Study Accuracy Variation

+/- 30%

Annual Production (steady state)

50,000tpa

Proportion of Production Target – Measured & Indicated

100%

Mineral Resource (Blackham Mining Leases)

SOP Resource (Total Porosity)

2Mt

SOP Resource (Drainable Porosity)

490,000t

Williamson Pit (Measured)

32,000t

Mining Method (Extraction)

Trenches – Average 5m deep

30km

Brine Delivery

595m3/h

Brine Chemistry (SOP Lake Brine only)

15kg/m3

Evaporation Ponds

Area

389ha

Halite Ponds (unlined)

308ha

Harvest Ponds (partially lined)

81ha

Recovery of Potassium from feed brine

63%

Recovery of Sulphate from feed brine

21%

Plant

Operating time (h/a)

7,950

Total Staffing

20

Operating Costs  (±30%)

Minegate

A$251/t

Transport and Handling

A$96/t

Royalties 1

A$40/t

Total Cash Costs (FOB)

A$387/t

Capital Costs (-10%/+30%)

Direct

A$37.3m

Indirect

A$5.2m

Growth Allowance

A$6.3m

Total Capital

A$48.9m

1    Royalties (State Government 2.5% and Other 4.5%)

* Operating costs do not include deprecation or sustaining capital. The Demonstration Plant is intended to operate for 2-3 years to validate the production model, and a successful Demonstration Plant will naturally then be intregrated into a larger production operation.

Capital Expenditure

The initial capital cost to develop the Demonstration Plant has been estimated at A$43 million (before growth allowance). Capital expenditure was estimated at an accuracy of -10% to +30%.

Table 3: Capital Costs

$Am

1.6

7.8

20.3

3.0

0.1

2.6

1.9

37.3

0.4

4.8

5.2

42.5

6.3

48.9

* Errors due to rounding

The benefits of Lake Way’s location are evident in the low Area and Regional Infrastructure capital costs. The availability of a wide flat playa area with amenable in-situ clays offers the opportunity to construct low capex evaporation ponds on the Lake.

Operating Costs

The operating cost estimates are based on an accuracy of ±30%.

Table 4: Operating Costs

Cost per tonne ($A)

Labour

 $    57

Power

 $    24

Maintenance

 $    22

Reagents

 $    14

Consumables

 $    81

Miscellaneous

 $    32

General and Administration

 $    21

Total (Operating Costs per tonne) Mine Gate

 $  251

Transportation

 $    96

Total (Operating Costs per tonne)

 $  347

Royalties (2.5% State Government and 4.5% Others)

$    40

Total Operating Cost per tonne

$  387

* Errors due to rounding

Ongoing Hydrogeological Testwork

Following the completion of the Scoping Study, pumping of four trenches continued (LYTR01, 02, 03 and 04).  Trenches 1 and 2 were pumped for approximately 90 days each and terminated in mid-September in order to observe recovery.  Pumping of trenches 3 and 4 continues, to observe recharge effects during the upcoming wet season.

The extended time of pumping enabled the reconfirmation of the specific yield parameters quoted in the Scoping Study.  The analysis of the final dataset from Trenches 1 and 2 is expected to provide good estimations of aquifer transmissivity and Drainable Porosity that will be key to the further development of the numerical groundwater model.

Throughout the trench testing a brine sample was taken from each trench on a weekly basis with the objective of identifying any variation in brine grade due to the pumping. The results obtained to date show minimal variation in brine grade as the pumping progressed.

Geotechnical Investigations

During the quarter, the Company significantly progressed design of the Williamson Ponds to dewater the Williamson Pit at Lake Way.

A Cone Penetration Test (CPT) rig completed a soil testing programme across the Williamson Pond footprint. Thirty-one CPT’s were undertaken to measure the strength and permeability characteristics of lakebed sediments. The CPT’s provided data to define the geotechnical parameters that are required for final pond analysis and design.

Detailed engineering of the Williamson Ponds commenced, with geotechnical design work completed including CPT data analysis, trafficability assessment, access road analysis, setup of seepage models, borrow pit assessments and development of the Pond construction methodology. Further analysis and design work will produce design drawings for the Ponds.

Civil engineering work also included topographical surveys of the pond and process plant site areas.

Given the unique design and site conditions, the Company is planning an Earthworks Trial as part of the early works construction activities. The trial will finalise earthworks equipment selection and refine the construction methodology for on-lake embankments.

The Company is progressing with the contractor selection process for dewatering of the Williamson Pit.

Mines Department Approval

SLP received environmental approval from the Department of Mines, Industry Regulation and Safety (DMIRS) for the pond system to dewater the Williamson Pit at Lake Way.

DMIRS has given environmental approval to construct ponds totalling up to 133Ha, as well as ancillary infrastructure and a trench to provide conditioning brine to manage the chemistry of the brine extracted from the Williamson Pit.

The Williamson Ponds will be the first operational scale SOP evaporation ponds built on a salt lake in Australia – an important part of the staged de-risking and development at Lake Way and across the Goldfields Salt Lakes Project.

Construction of the Williamson ponds will proceed upon:

·     completion of final engineering designs and contractor engagements;

·     completion of formal documents with Blackham to supersede the MOU (already substantially advanced); and

·     satisfaction of aboriginal heritage requirements. 

Process Testwork

Brine evaporation modelling, conducted by international solar pond experts, Ad Infinitum, indicated the salts produced at Lake Way through the natural evaporation process will be comparable to those produced at Lake Wells and therefore suitable for conversion into SOP. 

The Company executed a range of process development testwork to confirm the Ad Infinitum model and validate inputs to the Lake Way Scoping Study production model. The testwork uses both brines from the lake playa and the super-concentrated brines from the Williamson Pit.

The Lake Way Site Evaporation Trial (SET) continued to process significant volumes of both Lake and Williamson Pit brine. Assay results from samples collected at regular intervals are used to confirm the evaporation pathway aligns closely with predictions from the Company’s evaporation modelling.

Harvest salt from the laboratory evaporation of Lake Way brine was processed at SRC (Canada) to confirm the flowsheet for the Lake Way Demonstration Plant. The Lake Way flowsheet utilises the same unit operations as the previously piloted Lake Wells flowsheet, giving the company confidence that the process is robust and highly transferrable with only minor modifications to crush size.

LAKE WELLS

MOU with Australia Potash

In September 2018, Salt Lake entered into a Memorandum of Understanding and Co-operation Agreement with Australian Potash Limited (ASX: APC) to undertake a joint study of the potential benefits of development cost sharing for each Company’s project developments at Lake Wells.

The Companies’ substantial project holdings at Lake Wells are contiguous with many common infrastructure elements, including access roads, proximity to the Leonora rail terminals, and potential power and fresh water solutions. Both Companies anticipate substantial potential Capex and Opex benefits from some level of infrastructure sharing, with further potential benefits arising from shared or common evaporation and salt processing facilities.

The Companies have agreed to constitute a joint study team to carry out an initial assessment of the merits of infrastructure cooperation. The team will also conduct a high-level review of potential benefits of upstream operational synergies. A substantial part of the Study work will be outsourced to independent engineers and both Companies intend to continue with their independent project developments in parallel with the Study.

Mining Lease

The Company’s first Mining Lease at Lake Wells was granted in September 2018, a significant milestone in the Projects development pathway.

ML 38/1278 covers 87.4km2 in the south east corner of the Lake Wells project. The Mining Lease has an initial 21 year term.

LAKE BALLARD

Geological Interpretation

Lake Ballard project is located about 15 km north of Menzies. The playa is a significant regional landform with a surface area of over 626km2. The geology of Lake Ballard is similar to that encountered at other lakes in the Company’s GSLP.   

The Lake Ballard drainage is incised into the granite-greenstone basement and now in filled with a mixed sedimentary sequence. The lake bed sediments are underlain by a deeper paleochannel characterised by a sandy layer at its base.

The lake bed sediments comprise a mixed sequence of sands, clays and silts reflecting the climatic and depositional environment that created firstly the paleochannel and subsequently the lake.

At Lake Ballard the surficial deposits also include a highly consolidated sand layer between 1.5 and 3m depth.  This layer is non continuous across the lake and acts as a local aquiclude that results in a release of hydrostatic pressure and localised high flows when broken through.

Surface Aquifer Exploration Programme

The Company mobilised an amphibious excavator on Lake Ballard in July 2018 to complete a surface aquifer exploration programme.

The objective of the programme was to gather geological and hydrological data about the shallow brine aquifer hosted by the Quaternary alluvium stratigraphic sequence in the upper levels of the Lake. The programme is to evaluate the geology of the shallow lakebed sediments, and to undertake pumping trials to provide estimates of the potential brine yield from trenches in the shallow sediment and ultimately enable estimation of an indicated resource calculated from Total Porosity and Drainable Porosity. The excavator programme provides important geological and geotechnical information for potential construction of trenches and on-lake brine evaporation ponds.

Previous work in 2017 included the excavation of 163 test pits and 8 trenches and brine sampling. Work during the quarter included re-evaluation of gravity data to locate the deepest part of the paleochannel (the Thalweg), resampling and hydraulic testing of 38 test pits across the lake comprising 17 of the 2017 test pits at the eastern end of the lake and 21 new test pits located across the lake.  The new pits were logged geologically and all pits were sampled for brine chemistry and hydraulic testing.  In addition, 170 test pits from the 2017 and 2018 programmes were rehabilitated and one of the 2017 trenches extended to a total length of 180m.

The programme is ongoing and involves an auger drilling programme and trench testing.

Gravity Re-evaluation

The gravity data initially collected in 2017 was re-evaluated to identify the location of the Thalweg. Of particular interest was the eastern end where the channel crosses from Lake Ballard to the adjacent Lake Marmion. This assessment will facilitate the location of targets for future drilling.

Test Pits

38 test pits were assessed in 2018 to develop a greater understanding of the geology and brine chemistry across the lake. The pits were dug to 5m. In-situ samples were taken using Shelby tubes for 5 pits to assess total and drainable porosity of the sediment. Preliminary results of the data available are summarised in Table 5.

Table 5: Shelby Tube Porosity and Effective Porosity Results

Sample Id

Sample Depth (m)

Total Porosity (%)

Drainable Porosity (%)

LBTT 121

1

52.5

12.5

LBTT 121

2

60.1

14.7

LBTT 121

3

35.2

6.5

LBTT 121

4

43.1

11.9

LBTT 144

0.75

55.8

12.4

LBTT 144

1.75

58.2

12.5

LBTT 144

2.75

45.4

5.4

LBTT 155

0.75

59.9

10.6

LBTT 155

1.75

38.5

4.2

LBTT 155

2.75

26.7

5.7

Brine Chemistry

Over 140 brine samples have been analysed for Lake Ballard. Brine chemistry is reasonably uniform across the lake. 

All brine samples are considered to be composite samples representing the whole excavated or drilled depth at each location. Given the proposed abstraction techniques will involve trenches excavated to at least 4m across a large portion of the playa, the use of composite samples is representative of the brine that will be extracted.

Between 2017 and 2018, 142 brine samples were analysed from the test pits and trenches. The full suite of brine samples including their location is attached in Appendix 2. 

The spatial distribution of potassium concentration across the samples is reasonably consistent ranging from 1,040 to 2,460 mg/L. There are several low measurements of potassium, all of which relate to samples taken from test pits very close to the lake shore. At the lake shore there is the potential for local dilution following freshwater runoff onto the lake that may result in a localised area of lower brine concentration.

Auger Drilling

The Company commenced an auger drilling programme at Lake Ballard in September to obtain insitu samples for geological logging, porosity measurement, specific yield testing and brine sampling. The holes were drilled using a track mounted auger rig, capable of drilling to between 15 – 20m depth depending on ground conditions.

The programme consisted of a total of 15 holes at 11 locations. Location and total depth is outlined in Table 6. A brine sample was also recovered at each location. 

The core sample was collected using hollow stem augers within which a 1m plastic tube was inserted.  The plastic tubes were sealed immediately upon retrieval to prevent drying and loss of entrained brine.

The programme was successful with over 130m of core collected, from which 45 samples were selected for laboratory analysis of total and drainable porosity.  The core samples chosen for analysis were representative of the programme in terms of both location and depth interval from surface to total depth.

All core was delivered to Core Laboratories and the analysis will be completed and reported in the next quarter.

Table 6: Hole Locations and Depths

Hole ID

Easting

Northing

Depth (m)

Cased

Brine Sample

LBPAG01

319177

6731097

12.7

LBPAG02

318517

6731243

10.8

Yes

LBPAG03

315539

6733652

13

Yes

B800061,62

LBPAG04

311947

6733975

13.5

B800063,64

LBPAG05

307467

6735256

14.5

B800065,66

LBPAG06(a)

303547

6733253

5

LBPAG06(b)

304066

6733890

9

LBPAG07(a)

301092

6737570

4.5

B800067,68

LBPAG07(b)

300749

6937786

4

LBPAG07(c)

300443

6737940

3

LBPAG08

303139

6739647

10

Yes

B800069,70

LBPAG09(a)

299465

6741072

4

LBPAG09(b)

299174

6741053

4.5

LBPAG10

294859

6741331

11

Yes

B800071,72

LBPAG11

290355

6741953

15

Yes

B800073,74

 

Further Planned Work

The Company intends to undertake further work at Lake Ballard, including pumping of 2 test trenches to determine aquifer properties including hydraulic conductivity and Drainable Porosity.

EVAPORATION MODELLING

The Company continued to develop in-house capability to model evaporation pathways for lake brines under differing conditions to inform evaporation pond design and model salt production. An in-house modelling tool has been developed using a combination of standard engineering expressions and a well established and proven chemical-thermodynamic database.

SOP SAMPLE PRODUCTION

Perth Laboratory

The Company began the process of converting 10 tonnes of harvest salts collected from the Lake Wells SET into SOP samples at the Company’s in-house laboratory in Perth at the end of the quarter.  The process being used is based upon the flowsheet previously tested by SRC.

An initial 2 tonnes of salt were selected to represent a range of seasonal outputs from the SET. The process will initially be simulated through a series of batch operations to investigate the effects of seasonality on process performance.

The ultimate aim of the in-house work is to generate several hundred kilograms of lake-derived SOP product for assessment of quality and for marketing purposes. The operation also provides the Company’s process team valuable hands-on experience in the operation of a salt-brine process.    

Product Preparation

The Company is considering a range of product preparations for commercial scale production of SOP including standard (powder), compacted, spherical (granular) and soluble products.

During the quarter the Company engaged FEECO, USA to conduct granulation testwork using growth agglomeration techniques to generate a spherical fertilizer granule from Lake Wells produced SOP. The tests found that an attractive, 2mm to 4mm spherical SOP granule can be readily produced with the desired strength and physical properties. 

For further information please visit www.saltlakepotash.com.au or contact:

Matt Syme/Clint McGhie

Salt Lake Potash Limited

Tel: +61 8 9322 6322

Jo Battershill

Salt Lake Potash Limited

Tel: +44 (0) 20 7478 3900

Colin Aaronson/Richard Tonthat/
Ben Roberts

Grant Thornton UK LLP (Nominated Adviser)

Tel: +44 (0) 20 7383 5100

Derrick Lee/Beth McKiernan

Cenkos Securities plc (Joint Broker)

Tel: +44 (0) 131 220 6939

Jerry Keen/Toby Gibbs

 

Shore Capital (Joint broker)

Tel: +44 (0) 20 7468 7967

 

 

Competent Persons Statement

The information in this announcement that relates to Exploration Results for Lake Ballard is based on information compiled by Mr Ben Jeuken, who is a member Australian Institute of Mining and Metallurgy and a member of the International Association of Hydrogeologists. Mr Jeuken is employed by Groundwater Science Pty Ltd, an independent consulting company. Mr Jeuken has sufficient experience, which is relevant to the style of mineralisation and type of deposit under consideration and to the activity, which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr Jeuken consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.

The information in this announcement that relates to Process Testwork Results is extracted from the report entitled ‘June 2018 Quarterly Report’ dated 30 July 2018. This announcement is available to view on www.saltlakepotash.com.au. The information in the original ASX Announcement that related to Process Testwork Results was based on, and fairly represents, information compiled by Mr Bryn Jones, BAppSc (Chem), MEng (Mining) who is a Fellow of the AusIMM, a ‘Recognised Professional Organisation’ (RPO) included in a list promulgated by the ASX from time to time. Mr Jones is a Director of Salt Lake Potash Limited. Mr Jones has sufficient experience, which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking, to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Salt Lake Potash Limited confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement. Salt Lake Potash Limited confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement.

The information in this announcement that relates to the Lake Way Mineral Resource is extracted from the report entitled ‘Scoping Study for Low Capex, High Margin Demonstration Plant at Lake Way’ dated 31 July 2018. This announcement is available to view on www.saltlakepotash.com.au. The information in the original ASX Announcement that related to Mineral Resources was based on, and fairly represents, information compiled by Mr Ben Jeuken, who is a member Australian Institute of Mining and Metallurgy and a member of the International Association of Hydrogeologists. Mr Jeuken is employed by Groundwater Science Pty Ltd, an independent consulting company. Mr Jeuken has sufficient experience, which is relevant to the style of mineralisation and type of deposit under consideration and to the activity, which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Salt Lake Potash Limited confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement and, in the case of estimates of Mineral Resources, that all material assumptions and technical parameters underpinning the estimates in the relevant market announcement continue to apply and have not materially changed. Salt Lake Potash Limited confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement. 

Production Target

The Lake Way Demonstration Plant Production Target stated in this report is based on the Company’s Scoping Study as released to the ASX on 31 July 2018. The information in relation to the Production Target that the Company is required to include in a public report in accordance with ASX Listing Rule 5.16 and 5.17 was included in the Company’s ASX Announcement released on 31 July 2018. The Company confirms that the material assumptions underpinning the Production Target referenced in the 31 July 2018 release continue to apply and have not materially changed.

 

Appendix 1 – Summary of Exploration and Mining Tenements

As at 30 September 2018, the Company holds interests in the following tenements:

 

Project

Status

Type of Change

License Number

Interest (%)
1-Jul-18

Interest (%)

30-Sep-18

Western Australia

Lake Wells

Central

Granted

E38/2710

100%

100%

South

Granted

E38/2821

100%

100%

North

Granted

E38/2824

100%

100%

Outer East

Granted

E38/3055

100%

100%

Single Block

Granted

E38/3056

100%

100%

Outer West

Granted

E38/3057

100%

100%

North West

Granted

E38/3124

100%

100%

West

Granted

L38/262

100%

100%

East

Granted

L38/263

100%

100%

South West

Granted

L38/264

100%

100%

South

Granted

L38/287

100%

100%

South Western

Granted

E38/3247

100%

100%

South

Granted

Granted

M38/1278

100%

100%

Lake Ballard

West

Granted

E29/912

100%

100%

East

Granted

E29/913

100%

100%

North

Granted

E29/948

100%

100%

South

Granted

E29/958

100%

100%

South East

Granted

E29/1011

100%

100%

South East

Granted

E29/1020

100%

100%

South East

Granted

E29/1021

100%

100%

South East

Granted

E29/1022

100%

100%

Lake Irwin

West

Granted

E37/1233

100%

100%

Central

Granted

E39/1892

100%

100%

East

Granted

E38/3087

100%

100%

North

Granted

E37/1261

100%

100%

Central East

Granted

E38/3113

100%

100%

South

Granted

E39/1955

100%

100%

North West

Granted

E37/1260

100%

100%

South West

Granted

E39/1956

100%

100%

Lake Minigwal

West

Granted

E39/1893

100%

100%

East

Granted

E39/1894

100%

100%

Central

Granted

E39/1962

100%

100%

Central East

Granted

E39/1963

100%

100%

South

Granted

E39/1964

100%

100%

South West

Granted

E39/1965

100%

100%

Lake Way

Central

Granted

E53/1878

100%

100%

South

Application

E53/1897

100%

100%

Lake Marmion

North

Granted

E29/1000

100%

100%

Central

Granted

E29/1001

100%

100%

South

Granted

E29/1002

100%

100%

West

Granted

E29/1005

100%

100%

Lake Noondie

North

Granted

Granted

E57/1062

100%

100%

Central

Granted

Granted

E57/1063

100%

100%

South

Granted

Granted

E57/1064

100%

100%

West

Granted

Granted

E57/1065

100%

100%

East

Granted

Granted

E36/932

100%

100%

Lake Barlee

North

Granted

Granted

E30/495

100%

100%

Central

Granted

E30/496

100%

100%

South

Granted

E77/2441

100%

100%

Lake Raeside

North

Granted

Granted

E37/1305

100%

100%

Lake Austin

North

Application

E21/205

100%

100%

West

Application

E21/206

100%

100%

East

Application

E58/529

100%

100%

South

Application

E58/530

100%

100%

South West

Application

E58/531

100%

100%

Northern Territory

Lake Lewis

South

Granted

EL 29787

100%

100%

North

Granted

EL 29903

100%

100%

 

Appendix 2 – Lake Ballard Brine Sample Analysis

HOLE ID

Easting

Northing

TDS
(by calc)

Na

Ca

Mg

K

SO4

Cl

Solution
SG
(g/cm3)

Solution
pH

Sample Depth

LBPT002

325658

6731602

62100

1540

4550

1430

7110

112550

1.1082

Composite Sample

LBPT003

308700

6730471

55100

1660

4160

1360

6600

93200

1.1017

Composite Sample

LBPT004

302738

6744250

87900

834

8230

2050

9600

157950

1.1536

Composite Sample

LBPT005

302212

6743736

89900

1060

6550

2010

8130

154900

1.16776

Composite Sample

LBPT006

302212

6743736

89900

1080

6630

2020

8010

154550

1.17008

Composite Sample

LBPT007

302212

6743736

94900

974

7520

2170

8790

160850

1.176

Composite Sample

LBPT008

302212

6743736

92900

983

7460

2080

8820

159250

1.17392

Composite Sample

LBPT009

325586

6731856

271950

85500

883

9590

1780

8460

161400

1.18316

7.12

Composite Sample

LBPT010

325447

6732100

275850

86100

999

8080

2020

8250

160500

1.17792

6.95

Composite Sample

LBPT012

326492

6732881

278500

87000

864

9680

2100

8790

162100

1.18092

6.82

Composite Sample

LBPT013

319001

6727398

192550

63700

1070

4800

1450

5250

112050

1.12904

7.01

Composite Sample

LBPT014

277821

6735449

233450

76300

1120

5350

1840

6900

134450

1.14844

6.86

Composite Sample

LBPT015

278070

6735444

230400

74600

1160

4980

1750

6300

133900

1.15236

6.87

Composite Sample

LBPT016

319201

6727398

260500

83100

1140

7000

1850

7680

153500

1.17264

6.71

Composite Sample

LBPT017

308680

6730653

189500

62700

1060

4730

1440

5160

110800

1.12984

6.95

Composite Sample

LBPT018

308660

6730898

260150

83800

1140

7050

1860

7620

153500

1.17496

6.68

Composite Sample

LBPT019

301117

6725240

193450

61900

858

5960

1170

8310

113250

1.13496

6.81

Composite Sample

LBPT020

301140

6725500

199850

65900

1190

5730

1160

8940

115550

1.1362

6.99

Composite Sample

LBPT021

302640

6727058

255200

83700

1010

6790

1600

9030

149650

1.17316

6.47

Composite Sample

LBPT022

302354

6727064

257600

83600

999

6910

1700

9000

150700

1.17012

6.55

Composite Sample

LBPT023

304245

6745381

219950

74400

1280

5470

1730

6690

129700

1.1418

6.85

Composite Sample

LBPT024

304000

6745229

218700

74100

1190

5300

1770

6240

128850

1.13956

7

Composite Sample

LBPT025

302690

6744000

240100

78600

1050

6410

1850

7710

141100

1.15652

6.92

Composite Sample

LBPT026

302763

6743750

266400

85400

950

7420

1840

8880

155950

1.16004

6.78

Composite Sample

LBPT027

304000

6745229

189300

63000

1440

1400

7200

107000

1.1224

Composite Sample

LBTT011

324848

6734075

263350

86300

938

8380

2130

7350

159000

1.17812

6.67

Composite Sample

LBTT014

324869

6734673

208200

69500

892

5700

1770

5220

123250

1.1396

7.04

Composite Sample

LBTT015

324875

6734875

118100

40300

735

3210

1040

3510

70750

1.08432

7.01

Composite Sample

LBTT015

324875

6734875

170000

55400

800

4570

1360

4680

96200

1.107544

6.83

Composite Sample

LBTT015

324875

6734875

246073

98788

473

6035.2

3030

22417

155972

1.191

6.3

Composite Sample

LBTT016

324648

6734154

207650

70500

1050

5820

1770

5490

126600

1.14124

6.9

Composite Sample

LBTT017

324447

6734155

233400

81500

1050

7100

2040

6210

145850

1.16256

6.89

Composite Sample

LBTT018

324250

6734155

230650

82300

1070

6980

2060

6150

142200

1.13408

6.8

Composite Sample

LBTT019

324047

6734155

246850

86200

1040

7840

2140

7110

154250

1.17032

6.76

Composite Sample

LBTT019

324047

6734155

275500

89500

1100

8200

2130

7245

156150

1.171568

6.67

Composite Sample

LBTT020

323847

6734155

240150

80500

1080

7300

2050

6450

147250

1.15928

6.7

Composite Sample

LBTT021

323650

6734155

213000

73600

1140

6200

1870

5910

131150

1.17644

6.73

Composite Sample

LBTT022

323447

6734155

195000

66700

1080

5540

1760

5400

119600

1.1366

6.89

Composite Sample

LBTT023

323249

6734154

200650

66400

1070

5570

1730

5310

120300

1.13696

6.92

Composite Sample

LBTT024

323047

6734155

202400

66600

1050

5570

1740

5310

122200

1.13928

6.9

Composite Sample

LBTT024

323047

6734155

211000

67800

1060

5660

1670

5490

119200

1.131568

6.76

Composite Sample

LBTT025

323838

6734261

247650

87900

1120

7470

2200

7260

151100

1.164628

Composite Sample

LBTT026

323839

6734212

232200

82200

1160

6750

2140

6510

144150

1.17144

Composite Sample

LBTT027

323845

6734107

241750

83200

1090

7030

2110

6720

145000

1.172956

Composite Sample

LBTT028

323847

6734054

240600

81100

1170

6880

2110

6450

145000

1.141296

Composite Sample

LBTT030

322735

6730202

261050

90400

1200

7900

2350

7620

159150

1.183848

Composite Sample

LBTT031

322531

6730201

266250

89600

1180

7830

2160

7470

160050

1.093476

Composite Sample

LBTT031

322531

6730201

286000

88800

925

8940

1910

9180

161900

1.179036

6.68

Composite Sample

LBTT038

321137

6730178

282000

88650

958.5

8675

1810

9120

156925

1.175404

6.8

Composite Sample

LBTT043

320136

6730166

262350

88300

1050

8040

2040

8580

155650

1.110616

Composite Sample

LBTT046

320132

6730100

185600

63400

1570

5380

1490

7650

109450

1.13928

Composite Sample

LBTT047

320136

6730206

223850

74500

1310

6440

1720

8250

129300

1.175924

Composite Sample

LBTT050

318601

6728705

162200

60100

1440

3940

1390

5820

96900

1.186168

Composite Sample

LBTT053

319201

6728663

261900

91900

1120

7830

2040

9030

154200

1.1396

Composite Sample

LBTT054

319406

6728628

260600

88700

1100

7590

1980

8550

154400

1.08432

Composite Sample

LBTT055

319603

6728608

261800

90600

1210

7230

2080

7860

153850

1.17812

Composite Sample

LBTT055

319603

6728608

270000

85900

1070

8000

1880

8790

153150

1.169972

6.74

Composite Sample

LBTT056

319804

6728588

259750

90700

1010

7990

1900

9360

152600

1.14124

Composite Sample

LBTT057

320003

6728568

271000

94200

1130

7670

2180

8250

159350

1.16256

Composite Sample

LBTT058

320209

6728546

260050

90000

1310

6450

2170

6480

153500

1.13408

Composite Sample

LBTT059

320404

6728525

251900

93600

1070

7800

2000

9000

157550

1.17032

Composite Sample

LBTT060

320604

6728506

246250

88700

1110

7770

1940

8640

153500

1.15928

Composite Sample

LBTT061

320800

6728486

241550

86400

1060

7830

1960

8790

152800

1.17644

Composite Sample

LBTT061

320800

6728486

270000

89200

1190

7270

1970

7560

151600

1.171012

6.72

Composite Sample

LBTT063

321301

6728433

247000

89800

1090

7860

2110

8370

156700

1.1366

Composite Sample

LBTT064

321502

6728412

247650

89600

1150

7390

2080

8130

157050

1.13696

Composite Sample

LBTT065

321703

6728389

238450

88600

1280

6860

2070

7560

150150

1.170068

Composite Sample

LBTT068

319222

6730192

276000

88300

1000

8320

1930

8730

155450

1.17294

6.69

Composite Sample

LBTT068

319222

6730192

244564

96474

446

6273

3038

26015

152114

1.19

6.3

Composite Sample

LBTT071

318604

6730200

255650

93500

1030

7970

2170

8910

159700

1.179528

Composite Sample

LBTT072

318364

6731106

264350

94500

1070

7650

2100

9090

160400

1.1766

Composite Sample

LBTT073

318513

6731235

252350

92100

1060

7280

2020

8580

155800

1.093348

Composite Sample

LBTT073

318513

6731235

323000

92600

638

14400

3290

12800

174600

1.198072

6.55

Composite Sample

LBTT074

318664

6731366

259700

88900

1170

7020

1940

8400

153700

1.1235

Composite Sample

LBTT075

318810

6731492

266500

94200

1130

7280

2050

8400

158450

1.1642

Composite Sample

LBTT076

318936

6731596

249350

90400

1260

6610

2010

7800

151400

1.096176

Composite Sample

LBTT076

318936

6731596

241450

86600

1230

6570

1970

7650

150300

1.09778

Composite Sample

LBTT077

319077

6731719

251450

93400

1060

7440

2000

8640

156350

1.195852

Composite Sample

LBTT078

319224

6731844

247050

90000

1090

7360

1900

8430

155100

1.1211

Composite Sample

LBTT079

319344

6731947

255450

90100

1020

7540

1930

8580

158800

1.1566

Composite Sample

LBTT080

319491

6732075

252550

88800

1020

7880

1920

9270

155250

1.1841

Composite Sample

LBTT081

319626

6732190

247750

87100

1100

7830

1870

9600

151200

1.1644

Composite Sample

LBTT082

319787

6732309

248350

87300

1020

8170

1900

10000

150700

1.183732

Composite Sample

LBTT082

319787

6732309

247200

88300

1020

8230

1890

9600

151050

1.147

Composite Sample

LBTT083

319908

6732429

263600

91700

935

8690

1940

10200

157950

1.131

Composite Sample

LBTT084

320056

6732555

268350

91000

892

9080

1960

10700

158300

1.1101

Composite Sample

LBTT087

320625

6733158

276000

85700

988

8680

2010

9000

152650

1.177

6.87

Composite Sample

LBTT087

316105

6731412

244534

98413

458

5802.1

3357

22360

156523

1.193

6.2

Composite Sample

LBTT099

316105

6731412

268000

95200

978

7950

1980

8340

162250

1.1844

7.37

Composite Sample

LBTT099

316051

6731653

270000

85000

988

7500

1900

8280

149550

1.179

6.62

Composite Sample

LBTT099

316051

6731653

239387

90960

981

7834.6

2012

8917

157625

1.178

6.5

Composite Sample

LBTT100

315997

6731866

266000

90700

996

7950

2040

8100

160300

1.1776

6.99

Composite Sample

LBTT100

315997

6731866

266000

90700

996

7950

2040

8100

160300

1.1776

6.99

Composite Sample

LBTT101

315815

6732626

263000

88200

1020

7950

2040

8100

158200

1.1804

6.78

Composite Sample

LBTT103

315764

6732827

269000

93600

987

8340

2050

8970

162100

1.1808

6.79

Composite Sample

LBTT105

315704

6733021

280000

98700

862

8850

2070

9390

168200

1.1856

6.74

Composite Sample

LBTT106

315603

6733390

263000

94000

1060

7890

2030

8820

158050

1.1768

6.85

Composite Sample

LBTT107

315538

6733588

273000

95000

918

8550

2050

9360

164900

1.1868

6.81

Composite Sample

LBTT109

315395

6733959

272000

96800

935

8230

2030

9060

163150

1.184

6.73

Composite Sample

LBTT110

315395

6733959

259000

91700

1070

7490

2010

7890

155400

1.1756

6.69

Composite Sample

LBTT112

315314

6734154

269000

92700

959

8200

2080

8580

161550

1.1816

6.64

Composite Sample

LBTT112

315314

6734154

288000

89900

968

8240

2100

8220

158100

1.1846

6.81

Composite Sample

LBTT113

315240

6734314

278000

96500

909

8790

2160

8880

166300

1.1888

6.72

Composite Sample

LBTT114

316375

6734039

276000

96500

949

8500

2160

8970

165250

1.1872

6.79

Composite Sample

LBTT115

316375

6734039

265000

91100

1020

8080

2190

8190

158900

1.1772

6.8

Composite Sample

LBTT115

316521

6734168

279000

90000

1040

8050

2130

8430

149400

1.1825

6.72

Composite Sample

LBTT116

316962

6734577

261000

91100

1030

7550

2130

7680

156300

1.1688

6.67

Composite Sample

LBTT119

317399

6734975

273000

95600

1140

8120

2230

8220

163850

1.1728

6.6

Composite Sample

LBTT123

317694

6732520

258000

92800

1050

7450

2070

8190

154700

1.1552

6.59

Composite Sample

LBTT124

317839

6735385

279000

84500

988

7570

1940

8040

158950

1.1819

6.82

Composite Sample

LBTT125

317986

6735519

251000

85100

1070

7390

2030

7920

150150

1.1488

6.61

Composite Sample

LBTT126

318137

6735660

243000

85600

1330

6520

1960

6900

144900

1.1464

6.66

Composite Sample

LBTT127

318282

6735794

246000

87100

1290

6830

2050

7080

146650

1.1408

6.73

Composite Sample

LBTT128

318428

6735928

243000

87100

1300

6710

2040

7140

145450

1.1532

6.77

Composite Sample

LBTT129

318428

6735928

256000

88000

1180

7110

2080

7410

151900

1.1524

6.68

Composite Sample

LBTT129

318428

6735928

271000

87400

1120

7450

1990

7770

154200

1.169028

6.75

Composite Sample

LBTT131

313153

6737408

163000

58000

996

4420

1310

5250

96700

1.0964

6.98

Composite Sample

LBTT132

313132

6737224

258000

91800

1170

6850

2060

7110

153150

1.154

6.65

Composite Sample

LBTT133

313105

6737027

269000

94600

1020

7470

2060

8400

158750

1.1632

6.64

Composite Sample

LBTT133

313105

6737027

287000

90400

950

7920

1990

8550

157750

1.1838

6.68

Composite Sample

LBTT134

313082

6736829

271000

94300

1030

7490

2100

7740

161050

1.1616

6.63

Composite Sample

LBTT135

313051

6736634

270000

93400

1020

7390

2110

8160

159800

1.1684

6.68

Composite Sample

LBTT136

313029

6736432

263000

91400

1020

7460

2040

8040

156450

1.1652

6.63

Composite Sample

LBTT137

313004

6736240

312000

96500

853

9450

2460

8940

170850

1.1934

6.72

Composite Sample

LBTT142

312874

6735244

257000

89700

959

7650

1970

8340

152600

1.156

6.65

Composite Sample

LBTT142

312874

6735244

287000

92600

963.5

8140

2020

8880

159275

1.1761

6.73

Composite Sample

LBTT143

312850

6735049

261000

91600

968

7570

1950

8910

154900

1.1588

6.61

Composite Sample

LBTT144

312822

6734850

272000

85000

1080

7260

1890

8580

148400

1.1759

6.82

Composite Sample

LBTT145

312797

6734660

238000

86100

1090

6030

1780

7080

140700

1.1436

6.67

Composite Sample

LBTT149

313340

6733847

253000

84700

993

6650

1720

7710

147700

1.164

7.02

Composite Sample

LBTT150

313323

6733652

257000

86700

1060

6950

1750

8520

148400

1.166

6.78

Composite Sample

LBTT156

313143

6732468

270000

89800

939

7900

1860

9060

156650

1.1764

6.62

Composite Sample

LBTT165

308329

6738318

290000

91300

968

7780

2010

8310

157050

1.1789

6.59

Composite Sample

LBTT166

307463

6735246

278000

90200

1030

7450

1910

8880

152450

1.1722

6.7

Composite Sample

LBTT166

307463

6735246

238197

90335

986

7403.7

1911

9177

157074

1.177

6.6

Composite Sample

LBTT169

307397

6731029

279000

88000

1010

7510

1850

8670

151100

1.1764

6.66

Composite Sample

LBTT169

307397

6731029

238546

91021

973

7519.6

1853

9493

157074

1.177

6.5

Composite Sample

LBTT170

304632

6730314

261000

84100

1190

6600

1750

7920

146150

1.1633

6.75

Composite Sample

LBTT171

300652

6730490

276000

88100

1200

6720

1900

7380

151250

1.1811

6.75

Composite Sample

LBTT172

303546

6733252

286000

91600

1000

7320

2010

8040

158950

1.1836

6.53

Composite Sample

LBTT176

300602

6734536

275000

88800

959

7310

1750

9420

150950

1.1739

6.59

Composite Sample

LBTT181

298362

6736492

278000

90200

933

7240

1730

9150

155200

1.2208

6.64

Composite Sample

Note: Results indicated in italix are duplicate samples

APPENDIX 3 – JORC TABLE ONE

Section 1: Sampling Techniques and Data

CriteriaCriteria

JORC Code explanationJORC Code explanation

CommentaryCommentary

Sampling techniques

Nature and quality of sampling (eg cut channels, random chips, or specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as down hole gamma sondes, or handheld XRF instruments, etc). These examples should not be taken as limiting the broad meaning of sampling.

Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used.

Aspects of the determination of mineralisation that are Material to the Public Report.

In cases where ‘industry standard’ work has been done this would be relatively simple (eg ‘reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assay’). In other cases more explanation may be required, such as where there is coarse gold that has inherent sampling problems. Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information.

Sampling involved the excavation of 38 test pits over the tenement area to a depth of 4mbgl or weathered basement whichever was encountered first. 

A brine sample and duplicate were taken from each test pit and trench for analysis.

Samples were taken manually by initially rinsing out the bottle with brine from the pit or trench and then placing the bottle in the test pit or trench and allowing it to fill.

Samples were analysed for K, Mg, Ca, Na, Cl, SO4, HCO3, NO3, pH, TDS and specific gravity.

Each test pit was geologically logged and a sample taken each 1m depth.

Drilling techniques

Drill type (eg core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple or standard tube, depth of diamond tails, face-sampling bit or other type, whether core is oriented and if so, by what method, etc).

No drilling results are reported.  Test pits were dug with an excavator approximately 2m long x 1m wide x 4m deep.

 

Drill sample recovery

Method of recording and assessing core and chip sample recoveries and results assessed.

Measures taken to maximise sample recovery and ensure representative nature of the samples. Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential loss/gain of fine/coarse material.

Samples from the test pits were logged each bucket and a representative sample bagged.

100% of excavated sample was available for sampling.  The ability to see the bulk sample facilitated the selection of a representative sample.

There is no relationship between sample recovery and grade and no loss of material as a result of excavation.

Logging

Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies.

Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc) photography.

The total length and percentage of the relevant intersections logged.

The geological logging is sufficient for the purposes of identifying variations in sand/ clay and silt fraction within the top 4m.  For a brine abstraction project, the key parameters are the hydraulic conductivity and storativity of the host rock, which will be determined during test pumping of trenches.

The logging is qualitative.

The entire pit depth was logged in every case.

Sub-sampling techniques and sample preparation

If core, whether cut or sawn and whether quarter, half or all core taken.

If non-core, whether riffled, tube sampled, rotary split, etc and whether sampled wet or dry.

For all sample types, the nature, quality and appropriateness of the sample preparation technique.

Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples.

Measures taken to ensure that the sampling is representative of the in situ material collected, including for instance results for field duplicate/second-half sampling.

Whether sample sizes are appropriate to the grain size of the material being sampled.

No drilling results are reported.

At all test pits brine samples were taken from the pit after 24hours or once the pit had filled with brine.  The brine samples taken from the pits are bulk samples which is an appropriate approach given the long-term abstraction technique of using many kilometres of trenches to abstract brine from the upper 4m.

All the samples taken were incorporated into a rigorous QA / QC programme in which Standards and Duplicates were taken. The samples were taken in sterile plastic bottles of 250ml capacity.

Excavated lake bed samples were sealed in plastic bags.  For all brine samples (original or check samples) the samples were labelled with the alphanumeric code Y8001, Y80002.

Lake bed samples were labelled with the test pit locator LYTT01, LYTT02 etc. and the depth from which they were taken.

Quality of assay data and laboratory tests

The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total.

For geophysical tools, spectrometers, handheld XRF instruments, etc, the parameters used in determining the analysis including instrument make and model, reading times, calibrations factors applied and their derivation, etc.

Nature of quality control procedures adopted (eg standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established.

The brine samples were sent to Bureau Veritas Laboratories in Perth, WA with the duplicates being held by SLP.  Every 10th duplicate was sent to Intertek, an alternate laboratory for comparison purposes.

No laboratory analysis was undertaken with geophysical tools.

Soil samples and laboratory derived hydraulic conductivity, total porosity and drainable porosity samples were analysed by Core Laboratories in Perth WA.  All laboratories used are NATA certified.

Verification of sampling and assaying

The verification of significant intersections by either independent or alternative company personnel.

The use of twinned holes.

Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols.

Discuss any adjustment to assay data.

No drilling results reported.

All sampling and assaying is well documented and contained on SLP’s internal database.

No adjustments have been made to assay data

Location of data points

Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys), trenches, mine workings and other locations used in Mineral Resource estimation.

Specification of the grid system used.

Quality and adequacy of topographic control.

All coordinates were collected by handheld GPS.

The grid system is the Australian National Grid Zone MGA 51 (GDA 94).

The is no specific topographic control as the lake surface can essentially be considered flat.

Data spacing and distribution

Data spacing for reporting of Exploration Results.

Whether the data spacing and distribution is sufficient to establish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied.

Whether sample compositing has been applied.

The Lake Ballard area was calculated by digitising the lake surface and removing the area covered by the islands the approximate area is 626km2.  38 test pits were excavated over the lake surface resulting in 1 excavation per 16.47Km2. Which whilst it is a low density of investigation for a salt-lake it is sufficient to establish variations in brine content.

Sample compositing has not been applied.

Orientation of data in relation to geological structure

Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known, considering the deposit type.

If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias, this should be assessed and reported if material.

There are no structural or geological controls with respect to sampling the lake bed sediments. 

Geological influence on the brine is limited to the aquifer parameters of the host rock, namely the hydraulic conductivity, drainable porosity and storativity.

Sample security

The measures taken to ensure sample security.

SLP field geologists were responsible for collecting, sealing and labelling brine and Shelby tube samples prior to shipping to the Perth labs and the SLP offices.  The security measures for the material and type of sampling at hand was appropriate.

Audits or reviews

The results of any audits or reviews of sampling techniques and data.

No audits or review of sampling techniques have been undertaken.  The brine chemistry data has been reviewed for charge balance.

 

Section 2: Reporting of Exploration Results

CriteriaCriteria

JORC Code explanationJORC Code explanation

Commentary

Mineral tenement and land tenure status

Type, reference name/number, location and ownership including agreements or material issues with third parties such as joint ventures, partnerships, overriding royalties, native title interests, historical sites, wilderness or national park and environmental settings.

The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area.

The Lake Ballard project area is covered by Exploration licences E29/0912, E29/1011, E29/1022, E29/0958, E29/1021, E29/0948, E29/1020 and E29/0913.

All tenements are held by Piper Preston Pty Ltd, a wholly owned subsidiary of Salt Lake Potash Limited.

Exploration done by other parties

Acknowledgment and appraisal of exploration by other parties.

No previous work has been carried out on Lake Ballard for potash exploration.

Geology

Deposit type, geological setting and style of mineralisation.

The deposit is a salt-lake brine deposit.

The lake setting is typical of a Western Australian palaeovalley environment. Ancient hydrological systems have incised palaeovalleys into Archaean basement rocks, which were then infilled by Tertiary-aged sediments typically comprising a coarse-grained fluvial basal sand overlaid by palaeovalley clay with some coarser grained interbeds. The clay is overlaid by recent Cainozoic material including lacustrine sediment, calcrete, evaporite and aeolian deposits. 

Drill hole Information

A summary of all information material to the understanding of the exploration results including a tabulation of the following information for all Material drill holes:

o   easting and northing of the drill hole collar

o   elevation or RL (Reduced Level – elevation above sea level in metres) of the drill hole collar

o   dip and azimuth of the hole

o   down hole length and interception depth

o   hole length.

If the exclusion of this information is justified on the basis that the information is not Material and this exclusion does not detract from the understanding of the report, the Competent Person should clearly explain why this is the case.

No drill results are reported. 

38 test pits and 8 trenches were excavated on the lake surface.

All test pit locations are presented in the report.

Data aggregation methods

In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated.

Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results, the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail.

The assumptions used for any reporting of metal equivalent values should be clearly stated.

Within the salt-lake extent no low-grade cut-off or high-grade capping has been implemented due to the consistent nature of the brine assay data.

Relationship between mineralisation widths and intercept lengths

These relationships are particularly important in the reporting of Exploration Results.

If the geometry of the mineralisation with respect to the drill hole angle is known, its nature should be reported.

If it is not known and only the down hole lengths are reported, there should be a clear statement to this effect (eg ‘down hole length, true width not known’).

The chemical analysis from each of the test pits has shown the that the brine resource is consistent and continuous through the full thickness of the Lake Playa sediments unit. The unit is flat lying all test pits were excavated into the lake sediments to a depth of 4m or basement, the intersected depth is equivalent to the vertical depth and the thickness of mineralisation.

 

Diagrams

Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include, but not be limited to a plan view of drill hole collar locations and appropriate sectional views.

All location maps and sections are contained within the body of the report.

Balanced reporting

Where comprehensive reporting of all Exploration Results is not practicable, representative reporting of both low and high grades and/or widths should be practiced to avoid misleading reporting of Exploration Results.

A summary of the average of all brine results has been included in the body of the report.

The total and drainable porosity results for 4 test pits where Shelby tube insitu samples were taken are included in the body of the report.

Other substantive exploration data

Other exploration data, if meaningful and material, should be reported including (but not limited to): geological observations; geophysical survey results; geochemical survey results; bulk samples – size and method of treatment; metallurgical test results; bulk density, groundwater, geotechnical and rock characteristics; potential deleterious or contaminating substances.

All material exploration data available at the time of writing has been reported.

Further work

The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling).

Diagrams clearly highlighting the areas of possible extensions, including the main geological interpretations and future drilling areas, provided this information is not commercially sensitive.

Trench tests will commence and be concluded in Q2, an auger drilling programme will be completed and the results reported in Q2.

 

 

This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact rns@lseg.com or visit www.rns.com.

END

Appendix 5B

Mining exploration entity and oil and gas exploration entity quarterly report

Introduced 01/07/96  Origin Appendix 8  Amended 01/07/97, 01/07/98, 30/09/01, 01/06/10, 17/12/10, 01/05/13, 01/09/16

Name of entity

Salt Lake Potash Limited

ABN

Quarter ended (“current quarter”)

98 117 085 748

30 September 2018

Consolidated statement of cash flows

Current quarter $A’000

Year to date

 (3 months)
$A’000

1.

Cash flows from operating activities

1.1

Receipts from customers

1.2

Payments for

(1,633)

(1,633)

(a)   exploration & evaluation

(b)   development

(c)   production

(d)   staff costs

(610)

(610)

(e)   administration and corporate costs

(182)

(182)

1.3

Dividends received (see note 3)

1.4

Interest received

34

34

1.5

Interest and other costs of finance paid

1.6

Income taxes paid

1.7

Research and development refunds

1.8

Other (provide details if material)
– Business Development

(224)

(224)

1.9

Net cash from / (used in) operating activities

(2,615)

(2,615)

2.

Cash flows from investing activities

(122)

(122)

2.1

Payments to acquire:

(a)   property, plant and equipment

(b)   tenements (see item 10)

(c)   investments

(d)   other non-current assets

2.2

Proceeds from the disposal of:

(a)   property, plant and equipment

(b)   tenements (see item 10)

(c)   investments

(d)   other non-current assets

2.3

Cash flows from loans to other entities

2.4

Dividends received (see note 3)

2.5

Other (provide details if material)

2.6

Net cash from / (used in) investing activities

(122)

(122)

3.

Cash flows from financing activities

3.1

Proceeds from issues of shares

3.2

Proceeds from issue of convertible notes

3.3

Proceeds from exercise of share options

3.4

Transaction costs related to issues of shares, convertible notes or options

3.5

Proceeds from borrowings

3.6

Repayment of borrowings

3.7

Transaction costs related to loans and borrowings

3.8

Dividends paid

3.9

Other (provide details if material)

3.10

Net cash from / (used in) financing activities

4.

Net increase / (decrease) in cash and cash equivalents for the period

5,709

5,709

4.1

Cash and cash equivalents at beginning of period

4.2

Net cash from / (used in) operating activities (item 1.9 above)

(2,615)

(2,615)

4.3

Net cash from / (used in) investing activities (item 2.6 above)

(122)

(122)

4.4

Net cash from / (used in) financing activities (item 3.10 above)

4.5

Effect of movement in exchange rates on cash held

4.6

Cash and cash equivalents at end of period

2,972

2,972

5.

Reconciliation of cash and cash equivalents
at the end of the quarter (as shown in the consolidated statement of cash flows) to the related items in the accounts

Current quarter
$A’000

Previous quarter
$A’000

5.1

Bank balances

1,259

1,596

5.2

Call deposits

1,713

4,113

5.3

Bank overdrafts

5.4

Other (provide details)

5.5

Cash and cash equivalents at end of quarter (should equal item 4.6 above)

2,972

5,709

6.

Payments to directors of the entity and their associates

Current quarter
$A’000

6.1

Aggregate amount of payments to these parties included in item 1.2

(127)

6.2

Aggregate amount of cash flow from loans to these parties included in item 2.3

6.3

Include below any explanation necessary to understand the transactions included in items 6.1 and 6.2

Payments include director and consulting fees, superannuation and provision of corporate, administration services, and a fully serviced office.

7.

Payments to related entities of the entity and their associates

Current quarter
$A’000

7.1

Aggregate amount of payments to these parties included in item 1.2

7.2

Aggregate amount of cash flow from loans to these parties included in item 2.3

7.3

Include below any explanation necessary to understand the transactions included in items 7.1 and 7.2

Not applicable.

8.

Financing facilities available
Add notes as necessary for an understanding of the position

Total facility amount at quarter end
$A’000

Amount drawn at quarter end
$A’000

8.1

Loan facilities

8.2

Credit standby arrangements

8.3

Other (please specify)

8.4

Include below a description of each facility above, including the lender, interest rate and whether it is secured or unsecured. If any additional facilities have been entered into or are proposed to be entered into after quarter end, include details of those facilities as well.

Not applicable

9.

Estimated cash outflows for next quarter

$A’000

9.1

Exploration and evaluation

950

9.2

Development

9.3

Production

9.4

Staff costs

500

9.5

Administration and corporate costs

150

9.6

Other (provide details if material)
– Business Development

150

9.7

Total estimated cash outflows

1,750

10.

Changes in tenements
(items 2.1(b) and 2.2(b) above)

Tenement reference and location

Nature of interest

Interest at beginning of quarter

Interest at end of quarter

10.1

Interests in mining tenements and petroleum tenements lapsed, relinquished or reduced

Refer to Appendix 1

10.2

Interests in mining tenements and petroleum tenements acquired or increased

Compliance statement

1        This statement has been prepared in accordance with accounting standards and policies which comply with Listing Rule 19.11A.

2        This statement gives a true and fair view of the matters disclosed.

Sign here:         ……………………………………………………                        Date: 31 October 2018

(Director/Company secretary)

Print name:       Clint McGhie

Notes

1.       The quarterly report provides a basis for informing the market how the entity’s activities have been financed for the past quarter and the effect on its cash position. An entity that wishes to disclose additional information is encouraged to do so, in a note or notes included in or attached to this report.

2.       If this quarterly report has been prepared in accordance with Australian Accounting Standards, the definitions in, and provisions of, AASB 6: Exploration for and Evaluation of Mineral Resources and AASB 107: Statement of Cash Flows apply to this report. If this quarterly report has been prepared in accordance with other accounting standards agreed by ASX pursuant to Listing Rule 19.11A, the corresponding equivalent standards apply to this report.

3.       Dividends received may be classified either as cash flows from operating activities or cash flows from investing activities, depending on the accounting policy of the entity.

This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact rns@lseg.com or visit www.rns.com.

END

Salt Lake Potash #SO4 – Final Results 2018

AIM and ASX listed company Salt Lake Potash Limited (“SO4” or the “Company”), announces its results for the year ended 30 June 2018.

The Company’s Report and Accounts can be viewed at www.saltlakepotash.com.au.

The Company also advises that an Appendix 4G (Key to Disclosures: Corporate Governance Council Principles and Recommendations) and the 2018 Corporate Governance Statement have been released today and are available on the Company’s website: www.saltlakepotash.com.au/corporate-governance/

For further information please visit www.saltlakepotash.com.au or contact:

 

Clint McGhie

Salt Lake Potash Limited

Tel: +61 8 9322 6322

Colin Aaronson/Richard Tonthat/Ben Roberts

Grant Thornton UK LLP (Nominated Adviser)

Tel: +44 (0) 20 7383 5100

Derrick Lee/Beth McKiernan

Cenkos Securities plc (Joint Broker)

Tel: +44 (0) 131 220 6939

Jerry Keen/Toby Gibbs

Shore Capital (Joint broker)

Tel: +44 (0) 20 7468 7967

 

The information contained within this announcement is deemed to constitute inside information as stipulated under the Market Abuse Regulations (EU) No. 596/2014. Upon the publication of this announcement, this inside information is now considered to be in the public domain. 

OPERATING AND FINANCIAL REVIEW

Operations

The Company’s aim is to develop the first salt-lake brine Sulphate of Potash (SOP) operation in Australia, starting with a Demonstration Plant producing up to 50,000tpa of SOP, at the Goldfields Salt Lakes Project (GSLP) located in the Northern Goldfields of Western Australia. The Company’s multi-lake portfolio, and the comprehensive technical achievements to date, highlight the potential for a very economic, large scale and long term project.

Highlights

The Company has undertaken a significant level of work during the year across a range of disciplines and has achieved a number of very important milestones, substantially progressing the Company’s aim is to develop the first salt-lake SOP operation in Australia. Highlights during, and subsequent to the end of, the financial year include:

LAKE WAY

MOU with Blackham Resources to access Lake Way

·      The Company entered into a Memorandum of Understanding (MOU) with Blackham Resources Limited (Blackham) to investigate the potential development of a SOP operation based at Lake Way, near Wiluna.

Pursuant to the MOU with Blackham, the Company would construct an initial pond system to dewater Blackham’s Williamson Pit, which contains approximately 1.2GL of super-saturated brine, with a very high average SOP content of 25kg/m3. These Williamson Ponds would comprise approximately 1/3 of the total Demonstration Plant pond area, and dewatering of the Williamson Pit offers a shorter development time due to its very high grade and salt saturation.

Scoping Study for Low Capex, High Margin Demonstration Plant

·      The Company completed a Scoping Study on the development of a 50,000tpa SOP Demonstration Plant at Lake Way that supports a low capex, highly profitable, staged development model, with total capital costs of approximately A$49m and average cash operating costs (FOB) of approximately A$387/t.

The Demonstration Plant is intended to validate the technical and commercial viability of brine SOP production from the GSLP, providing the basis to build a world class, low cost, long life SOP operation across the 9 lakes in the GSLP.

LAKE WELLS

Process Testwork

·      The Company completed pilot scale crystalliser validation testwork at a leading crystalliser vendor in the United States, processing approximately 400 kg of crystalliser feed salt (schoenite concentrate), produced from previous Lake Wells development work at Saskatchewan Research Council (SRC). The testwork successfully produced high quality SOP crystals, representative of a full scale plant product.

·      The Site Evaporation Trial (SET) at Lake Wells was decommissioned after completing over 18 months of operation under site conditions and through all seasons. The SET processed approximately 412 tonnes of brine and produced over 10 tonnes of harvest salts.

MOU with Australian Potash to study sharing infrastructure and other costs at Lake Wells

·      Subsequent to year end, the Company and Australian Potash Limited (ASX: APC) entered into a Memorandum of Understanding and Co-operation Agreement to undertake a joint study of the potential benefits of development cost sharing for each Company’s projects at Lake Wells.

·      The Company’s first Mining Lease at Lake Wells was granted subsequent to year end, a significant milestone in the Projects development pathway.

LAKE BALLARD

·      An initial surface aquifer exploration program was completed at Lake Ballard, comprising a total of 160 shallow test pits and 10 test trenches. This work provides preliminary data for the geological and hydrological models for the surface aquifer of the Lake, as well as brine, geological and geotechnical samples. 

·      Subsequent to year end exploration drilling and excavation continued with a view to reporting an initial JORC mineral resource estimate for the shall aquifer.

LAKE IRWIN

·      A surface aquifer exploration program was completed at Lake Irwin, comprising 56 shallow test pits and 5 test trenches. This work provides preliminary data for the geological and hydrological models of the surface aquifer of the Lake, as well as brine, geological and geotechnical samples. 

REGIONAL LAKES

·      The Company undertook initial surface brine sampling of the near surface aquifer and reconnaissance of access and infrastructure at all remaining Lakes held under the GSLP.

GOLDFIELDS SALT LAKE PROJECT

First MOU for an Offtake Agreement with Mitsubishi

·      The Company executed its first MOU for an Offtake Agreement with Mitsubishi, for the sales and offtake rights for up to 50% of the SOP production, from a Demonstration Plant at the GSLP, for distribution into Asia and Oceania and potentially other markets.

World Class Scale Revealed with Initial Exploration Target Estimation

·      The Company released an initial estimate of Exploration Targets for eight of the nine lakes comprising the Company’s GSLP. The ninth lake, Lake Wells, already having a Mineral Resource reported in accordance with the JORC code.

The total “stored” Exploration Target for the GSLP is 290Mt – 458Mt of contained Sulphate of Potash (SOP) with an average SOP grade of 4.4 – 7.1kg/m3 (including Lake Wells’ Mineral Resource of 80-85Mt). On a “drainable” basis the total Exploration Target ranges from 26Mt – 153Mt of SOP. The total playa area of the lakes is approximately 3,312km2.

The potential quantity and grade of this Exploration Target is conceptual in nature. There has been insufficient exploration to estimate a Mineral Resource and it is uncertain if further exploration will result in the estimation of a Mineral Resource.

Background

The Company is the owner of the Goldfields Salt Lakes Project (GSLP), which comprises nine large salt lakes in the Northern Goldfields Region of Western Australia.

The GSLP has a number of important, favourable characteristics:

·      Very large paleochannel hosted brine aquifers, with chemistry amenable to evaporation of salts for SOP production, extractable from both low-cost trenches and deeper bores;

·      Over 3,300km2 of playa surface, with in-situ clays suitable for low cost on-lake pond construction;

·      The total “stored” Exploration Target for the GSLP is 290Mt – 458Mt of contained Sulphate of Potash (SOP) with an average SOP grade of 4.4 – 7.1kg/m3 (including Lake Wells’ Mineral Resource of 80-85Mt). On a “drainable” basis the total Exploration Target ranges from 26Mt – 153Mt of SOP. [The potential quantity and grade of this Exploration Target is conceptual in nature. There has been insufficient exploration to estimate a Mineral Resource and it is uncertain if further exploration will result in the estimation of a Mineral Resource].

·      Excellent evaporation conditions;

·      Excellent access to transport, energy and other infrastructure in the Goldfields mining district;

·      Lowest quartile capex and opex potential based on the Lake Wells Scoping Study;

·      Clear opportunity to reduce transport costs by developing lakes closer to infrastructure and by capturing economies of scale;

·      Multi-lake production offers operational flexibility, cost advantages and risk mitigation from localised weather events;

·      The very high level of technical validation already undertaken at Lake Wells substantially applies to the other lakes in the GSLP; and

·      Potential co-product revenues, particularly where transport costs are lowest.

The Company’s long term plan is to develop an integrated SOP operation of global scale, producing high quality organic SOP from a number (or all) of the lakes within the GSLP, after confirming the technical and commercial elements of the Project through construction and operation of a Demonstration Plant producing up to 50,000tpa of SOP.

Demonstration Plant

The Company believes the advantages of the Demonstration Plant approach are:

·      While substantial salt-lake brine production of SOP is undertaken in China, Chile and the USA, it is new in Australia and overseas production models need to be tested and adapted for Australian conditions.

·      Proof of concept for SOP production from salt-lake brines in Australia will substantially de-risk the full-scale project, with commensurate improvement in financing costs and alternatives. While the Demonstration Plant does not benefit from economies of scale, it will provide financiers and partners a very reliable cost basis for larger scale, longer term operations, while still being low capex and high margin in its own right.

·      Refinement of design and costing of engineering elements at Demonstration Plant scale should result in considerable time and cost savings at larger scale.

·      Market acceptance of a new product in conservative agricultural markets is best achieved progressively and in conjunction with existing, established partner(s). It is important to establish Salt Lake’s product(s) as premium, sustainable nutrients in the key long-term markets, and staged production increments are the best way to achieve this objective.

·        A Demonstration Plant offers an accelerated pathway to initial production, with limited infrastructure requirements and a faster, simpler approval process. The Demonstration Plant is intended to operate for 12-24 months to establish parameters for larger scale production, and then be integrated into a larger operation. The Company’s objective is to commence construction in 2018, harvesting first salts in 2019, and producing first SOP in 2020.

Lake Way

Salt Lake holds two Exploration Licences (one granted and one under application) covering most of Lake Way, including the paleochannel defined by previous exploration. The Northern end of the Lake is largely covered by a number of Mining Leases, held by Blackham Resources Limited (Blackham), the owner of the Wiluna Gold Mine.

The Company entered into a Memorandum of Understanding with Blackham in March 2018 to investigate the development of an SOP operation on Blackham’s existing Mining Leases at Lake Way, including initially a 50,000tpa Demonstration Plant.

Lake Way is located less than 15km south of Wiluna. The Wiluna region is an historic mining precinct dating back to the late 19th century. It has been a prolific nickel and gold mining region with well developed, high quality infrastructure in place.

The Goldfields Highway is a high quality sealed road permitted to carry quad road trains and passes 2km from the Lake. The Goldfields Gas Pipeline is adjacent to SLP’s tenements, running past the eastern side of the Lake.

Scoping Study

In July 2018, the Company completed a Scoping Study on development of a 50,000tpa sulphate of potash (SOP) Demonstration Plant at Lake Way that supports a low capex, highly profitable, staged development model.

The Demonstration Plant is supported by an Indicated and Measured Mineral Resource (drainable) within the Blackham mining lease area totalling 500,000t (Stored Resource – 2Mt), a multiple of the resource required to support a 50,000tpa Demonstration Plant for 2-3 years.

 

Table 1: Key Scoping Study Outcomes

Capital Costs (-10% & +30%)

Total Capital Costs

Including:

–  Temporary facilities

–  EPCM
–  Growth allowance (contingency)

A$49m

 

A$0.4m
A$4.8m
A$6.3m

Average Total Cash Cost (FOB) (+/- 30%)

Average Total Cash Cost (FOB)

Comprising:

–  Mine Gate Opex

–  Transport and handling

–  Royalties

A$387/t

A$251/t
A$96/t
A$40/t

Forecast SOP Price:

A$667/t (US$500/t)

Study Manager:

Wood (formerly Amec Foster Wheeler)

Average Annual Production:

50,000 tonnes of SOP

Development Process

The Demonstration Plant is intended to validate the technical and commercial viability of brine SOP production from the GSLP, providing the basis to build a world class, low cost, long life SOP operation across the 9 lakes in the GSLP.

The Company has previously established that larger production volumes (400,000tpa) can result in operating costs in the lowest cost quartile for SOP production globally*. This is principally a result of the economies of scale inherent in the GSLP’s advantageous location in the Northern Goldfields mining district, mostly in the main cost centres of transport, labour and power.

Pursuant to the MOU with Blackham, the Company will construct an initial pond system to dewater the Williamson Pit, which contains approximately 1.2GL of super-saturated brine, with a very high average SOP content of 25kg/m3. These Williamson Ponds will comprise approximately 1/3 of the total Demonstration Plant pond area, and dewatering of the Williamson Pit offers a shorter development time due to its very high grade and saturation.

Process Testwork

The Company undertook a range of process development testwork to enhance the process model for both Lake Way and Lake Wells.

A large scale, continuous Site Evaporation Trial (SET) at Lake Wells was successfully completed over 18 months of operation under site conditions and through all seasons. The results of the SET are an Australian first and have provided significant knowledge to the Company on the salt crystallisation pathway under site conditions in Australia. 

The SET processed approximately 412 tonnes of Lake Wells brine and produced 10.3 tonnes of harvest salts. Site-produced harvest salts have been used in a range of subsequent process development testwork programs.

The Company has used the harvest salts produced by the SET to perform comprehensive process development testwork at Saskatchewan Research Council (SRC). Most recently, SRC completed locked cycle testwork that validated the SysCAD process flowsheet and demonstrated that the process converges quickly to operate at steady state.

In addition to locked cycle testing, 1,000kg of harvest salts from Lake Wells SET were processed by SRC to produce approximately 350kg of the flotation concentrate (crystalliser feed salt) which was then provided to a globally recognized crystalliser vendor for crystalliser testwork and equipment design. The tests generated samples with large chrystal size, similar to full scale production, and allowed the vendor to refine the design and pricing of a key process equipment item.

Building on the knowledge gained from the Lake Wells project, a staged engineering approach was used in the process development for Lake Way, whereby initial evaporation modelling was undertaken followed by laboratory tests and then field trials.  The initial brine evaporation modelling, conducted by international solar pond experts, Ad Infinitum, indicated that the predicted harvest salts produced at Lake Way are comparable to those produced at Lake Wells (containing a mix of Halite, Kainite and Schoenite) and therefore suitable for conversion into SOP. 

Laboratory evaporation tests were conducted by international laboratory and testing company, Bureau Veritas (BV), to validate the evaporation model.  BV completed a series of laboratory-scale brine evaporation trials at their Perth facility, under simulated average Lake Way climate conditions. This testwork confirmed the modelled brine evaporation pathways. Furthermore it demonstrated that the Williamson pit brine follows a similar evaporation pathway to Lake Way lake brine with similar brine chemistry and salts produced. This indicates that the Williamson Pit brine is a pre-concentrated version of the Lake Way brine, which provides the advantage of a large volume of brine that is essentially accelerated in the evaporation pathway.

A range of process development testwork to provide and validate inputs to the Lake Way Scoping Study production model was also undertaken, including field evaporation tests and metallurgical processing testwork on harvest salts. The testwork incorporates brines from the Lake itself, as well as the super-concentrated brines from the Williamson Pit.

The results of testwork undertaken to date support the Company’s aim to produce an organic premium SOP product from the GSLP. Salt Lake continues to progress testwork to refine products in line with offtake partner expectations.

MOU for Offtake with Mitsubishi

The Company executed a MOU for an Offtake Agreement with Mitsubishi for the sales and offtake rights for up to 50% of the SOP production from a Demonstration Plant at the GSLP, for distribution into Asia and Oceania and potentially other markets. 

Salt Lake Potash is progressing its GSLP development strategy, initially involving construction of a Demonstration Plant producing up to 50,000tpa of high quality SOP, with its plans to distribute production through a small number of global distribution partnerships.

The Mitsubishi MOU is non-binding and sets out the key terms for a subsequent formal Offtake Agreement as the Demonstration Plant is developed. As well as quantities and target markets, the MOU’s other terms include:

·      Market pricing and commission mechanisms;

·      Specifications and delivery parameters;

·      Mitsubishi to provide strategic advice on marketing within the region; and

·      The parties to continue discussions regarding funding requirements for the GSLP.

Mitsubishi Australia Limited is a wholly owned subsidiary of Mitsubishi Corporation. Mitsubishi is one of the world’s largest trading and investment enterprises that develops and operates businesses across virtually every industry, including industrial finance, energy, metals, machinery, chemicals, and daily living essentials. Its current activities expand far beyond its traditional trading operations to include investments and business management in diverse fields including natural resources development, manufacturing of industrial goods, retail, new energy, infrastructure, finance and new technology-related businesses.

MOU with Australian Potash

In September 2018, Salt Lake entered into a Memorandum of Understanding and Co-operation Agreement with Australian Potash Limited (ASX: APC) to undertake a joint study of the potential benefits of development cost sharing for each Company’s project developments at Lake Wells.

The Companies’ substantial project holdings at Lake Wells are contiguous with many common infrastructure elements, including access roads, proximity to the Leonora rail terminals, and potential power and fresh water solutions. Both Companies anticipate substantial potential Capex and Opex benefits from some level of infrastructure sharing, with further potential benefits arising from shared or common evaporation and salt processing facilities.

The Companies have agreed to constitute a joint study team to carry out an initial assessment of the merits of infrastructure cooperation. The team will also conduct a high-level review of potential benefits of upstream operational synergies. A substantial part of the Study work will be outsourced to independent engineers and both Companies intend to continue with their independent project developments in parallel with the Study.

The Company’s first Mining Lease at Lake Wells was granted in September 2018, a significant milestone in the Projects development pathway.

 

Results of Operations

The net loss of the Consolidated Entity for the year ended 30 June 2018 was $11,327,108 (2017: net loss of $9,200,509). This loss is mainly attributable to:

(i)         Exploration and evaluation expenses of $8,545,647 (2017: $7,717,231) which are attributable to the Group’s accounting policy of expensing exploration and evaluation expenditure incurred by the Group subsequent to the acquisition of the rights to explore and up to the successful completion of definitive feasibility studies for each separate area of interest;

(ii)        Non-cash share-based payment expenses of $1,284,062 (2017: $580,976) which are attributable to the Group’s accounting policy of expensing the value (estimated using an option pricing model) of Incentive Securities issued to key employees and consultants. The value is measured at grant date and recognised over the period during which the option holders become unconditionally entitled to the options and/or rights; and 

(iii)       Business development expenses of $1,110,578 (2017: $559,247) which are attributable to additional business development and investor relations activities required to support the growth and development of the Goldfields Salt Lakes Project, including travel costs associated with representing the Company at international conferences and investor meetings.

 

Financial Position

As at the date of this report, the Company had working capital in excess of $4 million which includes cash and cash equivalents.

At 30 June 2018, the Company had cash reserves of $5,709,446 (2017: $15,596,759).

At 30 June 2018, the Company had net assets of $7,019,989 (2017: $17,046,443), a decrease of 59% compared with the previous year. This decrease is a result of the exploration and evaluation activity during the year, which has been expensed as discussed in the results of operations section above.

 

Business Strategies and Prospects for Future Financial Years 

The objective of the Group is to create long-term shareholder value through the discovery, exploration and development of its projects.

To date, the Group has not commenced production of any minerals. To achieve its objective, the Group currently has the following business strategies and prospects:

(i)      Complete a PFS for the Lake Way Demonstration Plant;

(ii)     Commence construction of the Williamson Ponds at Lake Way and dewatering of Blackham’s Williamson Pit;

(iii)    Commence construction of the on-lake infrastructure and Plant for the Lake Way Demonstration Plant;

(iv)    Complete a PFS on the Lake Wells Project;

(v)     Develop an organic premium SOP product in conjunction with offtake partners and potential customers; and

(vi)    Continue additional exploration activities including drilling, test pumping and other testwork across the Company’s multi lake portfolio.

All of these activities are inherently risky and the Board is unable to provide certainty of the expected results of these activities, or that any or all of these likely activities will be achieved. The material business risks faced by the Group that could have an effect on the Group’s future prospects, and how the Group manages these risks, include:

The Company’s exploration properties may never be brought into production – The exploration for, and development of, mineral deposits involves a high degree of risk. Few properties which are explored are ultimately developed into producing mines. To mitigate this risk, the Company will undertake systematic and staged exploration and testing programs on its mineral properties and, subject to the results of these exploration programs, the Company will then progressively undertake a number of technical and economic studies with respect to its projects prior to making a decision to mine. However there can be no guarantee that the studies will confirm the technical and economic viability of the Company’s mineral properties or that the properties will be successfully brought into production;

The Company’s activities will require further capital – The exploration and any development of the Company’s exploration properties will require substantial additional financing.  Failure to obtain sufficient financing may result in delaying or indefinite postponement of exploration and any development of the Company’s properties or even a loss of property interest. There can be no assurance that additional capital or other types of financing will be available if needed or that, if available, the terms of such financing will be favourable to the Company;

The Company’s licences may be subject to Native title and Aboriginal Heritage – There may be areas over which legitimate common law and/or statutory Native Title rights of Aboriginal Australians exist.  If Native Title rights do exist, the ability of the Company to gain access to the Projects (through obtaining consent of any relevant landowner), or to progress from the exploration phase to the development and mining phases of operations may be adversely affected;

The Company has contractual rights in respect of the Mining Leases on which it plans to build a Demonstration Plant at Lake Way – The Company entered into a Memorandum of Understanding with Blackham in March 2018 that outlines the respective rights and obligations of both parties. The Demonstration Plant will initially be based on Mining Leases held by Blackham and the ability of the Company to proceed with its plans at Lake Way will be dependent on ongoing co-operation with Blackham. The parties intend to formalise arrangements in a Split Commodity Agreement;

The Company’s activities are subject to Government regulations and approvals – Any material adverse changes in government policies or legislation in Western Australia and Australia that affect mining, processing, development and mineral exploration activities, income tax laws, royalty regulations, government subsidies and environmental issues may affect the viability and profitability of any planned development the GSLP. No assurance can be given that new rules and regulations will not be enacted or that existing rules and regulations will not be applied in a manner which could adversely impact the Group’s mineral properties;

The Company may be adversely affected by fluctuations in commodity prices – The price of potash and other commodities fluctuates widely and is affected by numerous factors beyond the control of the Company. Future production, if any, from the Company’s mineral properties will be dependent upon the price of potash and other commodities being adequate to make these properties economic. The Company currently does not engage in any hedging or derivative transactions to manage commodity price risk.  As the Company’s operations change, this policy will be reviewed periodically going forward; and

Global financial conditions may adversely affect the Company’s growth and profitability – Many industries, including the mineral resource industry, are impacted by these market conditions.  Some of the key impacts of the current financial market turmoil include contraction in credit markets resulting in a widening of credit risk, devaluations and high volatility in global equity, commodity, foreign exchange and precious metal markets, and a lack of market liquidity. Due to the current nature of the Company’s activities, a slowdown in the financial markets or other economic conditions may adversely affect the Company’s growth and ability to finance its activities. If these increased levels of volatility and market turmoil continue, the Company’s activities could be adversely impacted and the trading price of the Company’s shares could be adversely affected.

EARNINGS PER SHARE

2018
Cents

2017
Cents

Basic and diluted loss per share

(6.47)

(6.61)

SIGNIFICANT CHANGES IN THE STATE OF AFFAIRS

Significant changes in the state of affairs of the Consolidated Entity during the financial year were as follows:

(i)         On 18 August 2017, the Company issued 42,000 shares to an advisor as part of their annual fees.

(ii)        On 17 November 2017, the Company issued 1,100,000 incentive options to a key consultant as an incentive to attract and retain their services.

(iii)       On 1 December 2017, Mr Mark Hohnen retired as a Non-Executive Director of the Company.

(iv)       On 22 December 2017, the Company issued 2,300,000 performance rights to key employees and consultants of the Company pursuant to the Salt Lake Potash Limited Performance Rights Plan, and 800,000 incentive options to a key consultant as an incentive to attract and retain their services.

(v)        On 12 March 2018, the Company entered a Memorandum of Understanding (MOU) with Blackham Resources Limited (Blackham) to investigate the potential development of a Sulphate of Potash (SOP) operation based at Lake Way, near Wiluna. Under the MOU, the Company will acquire Blackham’s brine rights and Blackham will acquire gold rights to the Company’s Lake Way holdings, with each company retaining a royalty on their respective holdings.

(vi)       On 9 April 2018, the Company announced that it had executed a Memorandum of Understanding with Mitsubishi Australia Limited and Mitsubishi Corporation (Mitsubishi), setting out the basis for the first Offtake Agreement for the Goldfields Salt Lakes Project.  The formal Offtake Agreement will provide Mitsubishi with sales and offtake rights for up to 50% of the Sulphate of Potash (SOP) production from a Demonstration Plant at the GSLP, for distribution into Asia and Oceania and potentially other markets. 

SIGNIFICANT EVENTS AFTER BALANCE DATE

(i)         Announced the results from a Scoping Study on the Lake Wells project which confirmed its potential to produce low cost SOP by solar evaporation of lake brines for domestic and international fertiliser markets;

(ii)        On 10 August 2018, the Company appointed Mr Clint McGhie as Company Secretary and Chief Financial Officer following the resignation of Mr Sam Cordin; and

(iii)       On 14 September 2018, the Company announced that it entered into a Memorandum of Understanding and Co-operation Agreement with Australian Potash Limited (ASX: APC) to study the potentially very substantial benefits of sharing infrastructure and other costs at Lake Wells.

Other than as noted above, as at the date of this report there are no matters or circumstances which have arisen since 30 June 2018 that have significantly affected or may significantly affect:

·           the operations, in financial years subsequent to 30 June 2018, of the Consolidated Entity;

·           the results of those operations, in financial years subsequent to 30 June 2018, of the Consolidated Entity; or

·           the state of affairs, in financial years subsequent to 30 June 2018, of the Consolidated Entity.

ENVIRONMENTAL REGULATION AND PERFORMANCE

The Group’s operations are subject to various environmental laws and regulations under the relevant government’s legislation. Full compliance with these laws and regulations is regarded as a minimum standard for all operations to achieve.

Instances of environmental non-compliance by an operation are identified either by external compliance audits or inspections by relevant government authorities.

There have been no significant known breaches by the Group during the financial year.

DIVIDENDS       

No dividends were paid or declared since the start of the financial year. No recommendation for payment of dividends has been made.

DIRECTORS’ INTERESTS

As at the date of this report, the Directors’ interests in the securities of the Company are as follows:

 

Interest in securities at the date of this report

Ordinary Shares1

Incentive Options 2

Performance Rights 3

Mr Ian Middlemas

11,000,000

Mr Matthew Syme

4,500,000

2,500,000

2,000,000

Mr Mark Pearce

4,000,000

200,000

Mr Bryn Jones

200,000

Notes:

1   Ordinary Shares means fully paid Ordinary Shares in the capital of the Company.

2   Incentive Options means an unlisted share option to subscribe for one Ordinary Share in the capital of the Company.

3   Performance Rights means Performance Rights issued by the Company that convert to one Ordinary Share in the capital of the Company upon satisfaction of various performance conditions.

SHARE OPTIONS, PERFORMANCE SHARES AND PERFORMANCE RIGHTS

At the date of this report the following options and performance shares have been issued over unissued Ordinary Shares of the Company:

·            750,000 Unlisted Options exercisable at $0.40 each on or before 29 April 2019;

·            750,000 Unlisted Options exercisable at $0.50 each on or before 29 April 2020;

·            1,000,000 Unlisted Options exercisable at $0.60 each on or before 29 April 2021;

·            250,000 Unlisted Options exercisable at $0.40 each on or before 30 June 2021;

·            500,000 Unlisted Options exercisable at $0.50 each on or before 30 June 2021;

·            750,000 Unlisted Options exercisable at $0.60 each on or before 30 June 2021;

·            400,000 Unlisted Options exercisable at $0.70 each on or before 30 June 2021;

·            5,000,000 ‘Class A’ Performance Shares expiring on or before 31 December 2018;

·            7,500,000 ‘Class B’ Performance Shares on or before 31 December 2019;

·            10,000,000 ‘Class C’ Performance Shares on or before 12 June 2020;

·            1,350,000 Performance Rights subject to the PFS Milestone expiring on 31 December 2018;

·            1,350,000 Performance Rights subject to the BFS Milestone expiring on 31 December 2019;

·            1,350,000 Performance Rights subject to the Construction Milestone expiring on 30 June 2020; and

·            1,350,000 Performance Rights subject to the Production Milestone expiring on 30 June 2021.

During the year ended 30 June 2018, no Ordinary Shares have been issued as a result of the exercise of Unlisted Options, and no Ordinary Shares have been issued as a result of the conversion of Performance Shares or Rights. Subsequent to year end and until the date of this report, no Ordinary Shares have been issued as a result of the exercise of Unlisted Options.

 

CONSOLIDATED STATEMENT OF PROFIT OR LOSS AND OTHER COMPREHENSIVE INCOME

FOR THE YEAR ENDED 30 JUNE 2018

 

30 June

2018

30 June

2017

Notes

$

$

Finance income

3

238,208

 123,477

Other income

4

456,709

 604,468

Exploration and evaluation expenses

(8,545,647)

 (7,717,231)

Corporate and administrative expenses

(1,081,738)

 (1,071,000)

Business development expenses

(1,110,578)

 (559,247)

Share based payment expense

5

(1,284,062)

(580,976)

Loss before tax

(11,327,108)

(9,200,509)

Income tax expense

6

Loss for the year

(11,327,108)

(9,200,509)

Other comprehensive income

Items that may be reclassified subsequently to profit or loss:

Foreign currency translation differences reclassified to profit or loss on disposal of controlled entity

(454,468)

Other comprehensive loss for the year, net of tax

(454,468)

Total comprehensive loss for the year

(11,327,108)

(9,654,977)

Basic and diluted loss per share attributable to the ordinary equity holders of the company (cents per share)

16

(6.47)

(6.61)

 

The above Consolidated Statement of Profit or Loss and other Comprehensive Income should be read in conjunction with the accompanying notes. 

 

CONSOLIDATED STATEMENT OF FINANCIAL POSITION

AS AT 30 JUNE 2018

 

Notes

30 June 2018
$

30 June 2017
$

ASSETS

Current Assets

Cash and cash equivalents

7

5,709,446

15,596,759

Trade and other receivables

8

227,273

300,058

Total Current Assets

5,936,719

15,896,817

Non-Current Assets

Property, plant and equipment

9

535,344

303,511

Exploration and evaluation expenditure

10

2,276,736

2,276,736

Total Non-Current Assets

2,812,080

2,580,247

TOTAL ASSETS

8,748,799

18,477,064

LIABILITIES

Current Liabilities

Trade and other payables

11

1,620,527

1,348,791

Finance lease

11,829

13,011

Provisions

12

57,462

19,181

Total Current Liabilities

1,689,818

1,380,983

Non-Current Liabilities

Finance lease

38,992

49,638

Total Non-Current Liabilities

38,992

49,638

TOTAL LIABILITIES

1,728,810

1,430,621

NET ASSETS

7,019,989

17,046,443

EQUITY

Contributed equity

13

123,501,153

123,484,561

Reserves

14

2,105,886

821,824

Accumulated losses

(118,587,050)

(107,259,942)

TOTAL EQUITY

7,019,989

17,046,443

 

The above Consolidated Statement of Financial Position should be read in conjunction with the accompanying notes.

 

CONSOLIDATED STATEMENT OF CHANGES IN EQUITY

FOR THE YEAR ENDED 30 JUNE 2018

 

Contributed Equity

Share- Based Payment Reserve

Foreign Currency Translation Reserve

Accumulated Losses

Total Equity

$

$

$

$

$

Balance at 1 July 2017

123,484,561

   821,824

                                  –

(107,259,942)

17,046,443

Net loss for the year

 (11,327,108)

(11,327,108)

Total comprehensive loss for the year

 (11,327,108)

 (11,327,108)

Shares issued in lieu of fees

18,476

18,476

Share issue costs

 (1,884)

 (1,884)

Share based payment expense

1,284,062

1,284,062

Balance at 30 June 2018

123,501,153

2,105,886

(118,587,050)

7,019,989

Balance at 1 July 2016

106,761,669

240,848

454,468

(98,059,433)

9,397,552

Net loss for the year

 (9,200,509)

(9,200,509)

Exchange differences reclassified to profit or loss on disposal of controlled entity

 (454,468)

 (454,468)

Total comprehensive loss for the year

 (454,468)

 (9,200,509)

 (9,654,977)

Shares issued in lieu of fees

86,400

86,400

Share placement

17,630,000

17,630,000

Share issue costs

(993,508)

(993,508)

Share based payment expense

580,976

580,976

Balance at 30 June 2017

123,484,561

821,824

(107,259,942)

17,046,443

 

The above Consolidated Statement of Changes in Equity should be read in conjunction with the accompanying notes

CONSOLIDATED STATEMENT OF CASH FLOWS

FOR THE YEAR ENDED 30 JUNE 2018

 

Note

30 June

2018
$

30 June

2017
$

Cash flows from operating activities

Payments to suppliers and employees

(10,275,823)

(8,657,842)

Exploration investment scheme received

30,000

120,000

R&D tax incentive

456,709

Interest received

242,852

114,423

Net cash outflow from operating activities

15(a)

(9,546,262)

(8,423,419)

Cash flows from investing activities

Payments for property, plant and equipment

(256,890)

(162,675)

Net cash outflow from investing activities

(256,890)

(162,675)

Cash flows from financing activities

Proceeds from issue of shares

17,630,000

Lease payments

(11,829)

Transaction costs from issue of shares

(72,332)

(945,448)

Net cash inflow/(outflow) from financing activities

(84,161)

16,684,552

Net increase/(decrease) in cash and cash equivalents held

(9,887,313)

8,098,458

Net foreign exchange differences

16

Cash and cash equivalents at the beginning of the year

15,596,759

7,498,285

Cash and cash equivalents at the end of the year

15(b)

5,709,446

15,596,759

 

The above Consolidated Statement of Cash Flows should be read in conjunction with the accompanying notes.

 

NOTES TO AND FORMING PART OF THE FINANCIAL STATEMENTS
FOR THE YEAR ENDED 30 JUNE 2018

 

1.       STATEMENT OF SIGNIFICANT ACCOUNTING POLICIES

The significant accounting policies adopted in preparing the financial report of Salt Lake Potash Limited (Salt Lake or Company) and its consolidated entities (Consolidated Entity or Group) for the year ended 30 June 2018 are stated to assist in a general understanding of the financial report.

Salt Lake is a Company limited by shares incorporated and domiciled in Australia whose shares are publicly traded on the Australian Securities Exchange (ASX), and the AIM Market (AIM) of the London Stock Exchange.

 

The financial report of the Group for the year ended 30 June 2018 was authorised for issue in accordance with a resolution of the Directors on 26 September 2018.

(a)      Basis of Preparation

The financial report is a general purpose financial report, which has been prepared in accordance with Australian Accounting Standards (“AASBs”) and other authoritative pronouncements of the Australian Accounting Standards Board (“AASB”) and the Corporations Act 2001. The Group is a for-profit entity for the purposes of preparing the consolidated financial statements.

The financial report has been prepared on a historical cost basis. The financial report is presented in Australian dollars.

Going concern 

The consolidated financial statements have been prepared on a going concern basis which assumes the continuity of normal business activity and the realisation of assets and the settlement of liabilities in the ordinary course of business.

For the year ended 30 June 2018, the Consolidated Entity incurred a net loss of $11,327,108 (2017: $9,654,977) and experienced net cash outflows from operating and investing activities of $9,821,628 (2017: $8,586,094). As at 30 June 2018, the Group had cash and cash equivalents of $5,709,446 (2017: $15,596,759) and net current assets of $4,246,901 (2017: $14,515,834).

The Company has recently completed a successful Scoping Study for the Lake Way Demonstration Plant and is currently in the process of finalising parameters for the Pre-Feasibility Study and construction of holding ponds to dewater Blackham’s Williamson Pit. The Scoping Study on the development of a 50,000tpa sulphate of potash (SOP) Demonstration Plant at Lake Way supports a low capex, highly profitable, staged development model. In order to continue to progress the Demonstration Plant at Lake Way and ongoing studies for the wider GSLP, the Company will be required to raise additional capital during the current financial year.

Based on the successful results of the Scoping Study and having previously raised funds for the GSLP, the Directors are confident that they will be able to raise additional capital as and when required to continue to fund operations. In addition, the Directors have been involved in a number of recent successful capital raisings for other listed resource companies, and accordingly, they are satisfied that they will be able to raise additional capital when required to enable the Consolidated Entity to meet its obligations as and when they fall due, and accordingly, consider that it is appropriate to prepare the financial statements on the going concern basis.

Should the Consolidated Entity be unable to raise additional capital as and when required, the Consolidated Entity would need to reduce operational expenditure to continue as a going concern. In the event that the Consolidated Entity is unable to achieve the matters referred to above, uncertainty would exist that may cast doubt on the ability of the Consolidated Entity to continue as a going concern.

These consolidated financial statements do not include any adjustments relating to the recoverability and classification of recorded asset amounts, or to the amounts and classification of liabilities that might be necessary should the Consolidated Entity be unable to continue as a going concern.

(b)      Statement of Compliance

The financial report complies with Australian Accounting Standards and International Financial Reporting Standards (IFRS) as issued by the International Accounting Standards Board.

In the current year, the Group has adopted all of the new and revised Standards and Interpretations issued by the AASB that are relevant to its operations and effective for the current annual reporting period.

New and revised standards and amendments thereof and interpretations effective for the current reporting period that are relevant to the Group include:

 

·           AASB 2016-1 Amendments to Australian Accounting Standards – Recognition of Deferred Tax Assets for Unrealised Losses which clarify that the existence of a deductible temporary difference depends solely on a comparison of the carrying amount of an asset and its tax base at the end of the reporting period, and is not effected by possible future changes in the carrying amount or expected manner of recovery of the asset;

 

·           AASB 2016-2 Amendments to Australian Accounting Standards – Disclosure Initiative: Amendments to AASB 107 which amend existing presentation and disclosure requirements to evaluate changes in liabilities arising from financing activities, including both changes arising from cash flows and non-cash changes; and

 

·           AASB 2017-2 Amendments to Australian Accounting Standards – Further Annual Improvements 2016-2016 Cycle which clarify the existing disclosure requirements and scope of AASB 12 Disclosure of Interest in Other Entities to apply to interests that are classified as held for sale or distribution.

 

The adoption of these new and revised standards has not resulted in any significant changes to the Group’s accounting policies or to the amounts reported for the current or prior periods.

Australian Accounting Standards and Interpretations that have recently been issued or amended but are not yet effective have not been adopted by the Group for the annual reporting period ended 30 June 2018. Those which may be relevant to the Group are set out in the table below. 

 

Standard/Interpretation

Application date of standard

Application date for Group

AASB 9 Financial Instruments, and relevant amending standards

1 January 2018

1 July 2018

AASB 15 Revenue from Contracts with Customers, and relevant amending standards

1 January 2018

1 July 2018

AASB 2016-5 Amendments to Australian Accounting Standards – Classification and Measurement of Share-based Payment Transactions

1 January 2018

1 July 2018

AASB Interpretation 22 Foreign Currency Transactions and Advance Consideration

1 January 2018

1 July 2018

AASB 16 Leases

1 January 2019

1 July 2019

Management has reviewed the requirements of these accounting standards and has assessed that these will not have any significant impact on the Group’s financial statements based on the following:

·      At 30 June 2018, the Group’s only financial assets and liabilities are cash, receivables, finance lease and payables for which no significant measurement changes have been introduced under AASB 9.  The changes to the impairment model are not anticipated to have an impact on the Group as receivables are primarily comprised of GST and interest;

·      The Group does not currently have any revenue contracts and accordingly AASB 15 is not expected to have an impact on the Group’s results; and

·      The Group’s main operating lease is for office space, currently at a cost of $10,170 per month.  Under AASB 16, an asset (the right to use the leased item) and a financial liability to pay rentals will be recognised. AASB 16 will not apply to short term contracts of less than 12 months.

(c)      Principles of Consolidation

The consolidated financial statements incorporate the assets and liabilities of all subsidiaries of the Company as at 30 June 2018 and the results of all subsidiaries for the year then ended.

Subsidiaries are all entities (including structured entities) over which the group has control. The group controls an entity when the group is exposed to, or has rights to, variable returns from its involvement with the entity and has the ability to affect those returns through its power to direct the activities of the entity.

 

The financial statements of the subsidiaries are prepared for the same reporting period as the Company, using consistent accounting policies. Accounting policies of subsidiaries have been changed where necessary to ensure consistency with the policies adopted by the Company.

 

Subsidiaries are fully consolidated from the date on which control is transferred to the Company. They are de-consolidated from the date that control ceases. Intercompany transactions and balances, income and expenses and profits and losses between Group companies, are eliminated.

(d)      Cash and Cash Equivalents

Cash and cash equivalents include cash on hand, deposits held at call with banks and other short-term highly liquid investments with original maturities of three months or less.

(e)      Trade and Other Receivables

Trade receivables are recognised and carried at the original invoice amount less a provision for any uncollectable debts. An estimate for doubtful debts is made when collection of the full amount is no longer probable. Bad debts are written‑off as incurred.

Short term receivables from related parties are recognised and carried at the nominal amount due and are interest free.

(f)       Investments and Other Financial Assets

(i)       Classification

Financial assets in the scope of AASB 139 Financial Instruments: Recognition and Measurement are classified as either financial assets at fair value through profit or loss, loans and receivables, held-to-maturity investments, or available-for-sale investments, as appropriate. When financial assets are recognised initially they are measured at fair value, plus, in the case of investments not at fair value through profit or loss, directly attributable transaction costs. The Group determines the classification of its financial assets after initial recognition and, when allowed and appropriate, re-evaluates this designation at each financial year-end.

Loans and receivables are non-derivative financial assets with fixed or determinable payments that are not quoted in an active market. They arise when the Group provides money, goods or services directly to a debtor with no intention of selling the receivable. They are included in current assets, except for those with maturities greater than twelve months after the reporting date which are classified as non-current assets. Loans and receivables are included in receivables in the statement of financial position.

 Loans and receivables are carried at amortised cost using the effective interest rate method.

(ii)      Impairment

Collectability of trade and other receivables is reviewed on an ongoing basis. Individual debts that are known to be uncollectible are written off when identified. An impairment allowance is recognised when there is objective evidence that the Consolidated Entity will not be able to collect the receivable. Financial difficulties of the debtor, default payments or debts more than 60 days overdue are considered objective evidence of impairment. The amount of the impairment loss is the receivable carrying amount compared to the present value of estimated future cash flows, discounted at the original effective interest rate.

(g)      Property, Plant and Equipment

(i)       Recognition and measurement

All classes of property, plant and equipment are measured at historical cost.

Plant and equipment is stated at historical cost less accumulated depreciation and any accumulated impairment losses. Such cost includes the cost of replacing parts that are eligible for capitalisation when the cost of replacing the parts is incurred. Similarly, when each major inspection is performed, its cost is recognised in the carrying amount of the plant and equipment as a replacement only if it is eligible for capitalisation. All other repairs and maintenance are recognised in the Statement of Profit or Loss and other Comprehensive Income as incurred.

(ii)      Depreciation and Amortisation

Depreciation is provided on a straight line basis on all property, plant and equipment.

 

2018

2017

Major depreciation and amortisation periods are:

Plant and equipment:

22%- 40%

22%- 40%

The assets’ residual values, useful lives and amortisation methods are reviewed, and adjusted if appropriate, at each financial year end.

(iii)     Derecognition

An item of property, plant and equipment is derecognised upon disposal or when no further future economic benefits are expected from its use or disposal.

(h)      Exploration and Development Expenditure

Expenditure on exploration and evaluation is accounted for in accordance with the ‘area of interest’ method.

Exploration and evaluation expenditure encompasses expenditures incurred by the Group in connection with the exploration for and evaluation of mineral resources before the technical feasibility and commercial viability of extracting a mineral resource are demonstrable.

For each area of interest, expenditure incurred in the acquisition of rights to explore is capitalised, classified as tangible or intangible, and recognised as an exploration and evaluation asset. Exploration and evaluation assets are measured at cost at recognition and are recorded as an asset if:

a.      the rights to tenure of the area of interest are current; and

b.      at least one of the following conditions is also met:

 

·      the exploration and evaluation expenditures are expected to be recouped through successful development and exploitation of the area of interest, or alternatively, by its sale; and

·      exploration and evaluation activities in the area of interest have not at the reporting date reached a stage which permits a reasonable assessment of the existence or otherwise of economically recoverable reserves, and active and significant operations in, or in relation to, the area of interest are continuing.

Exploration and evaluation expenditure incurred by the Group subsequent to acquisition of the rights to explore is expensed as incurred, up to costs associated with the preparation of a feasibility study.

 

(i)    Impairment

Capitalised exploration costs are reviewed each reporting date to establish whether an indication of impairment exists. If any such indication exists, the recoverable amount of the capitalised exploration costs is estimated to determine the extent of the impairment loss (if any). Where an impairment loss subsequently reverses, the carrying amount of the asset is increased to the revised estimate of its recoverable amount, but only to the extent that the increased carrying amount does not exceed the carrying amount that would have been determined had no impairment loss been recognised for the asset in previous years.

Where a decision is made to proceed with development, accumulated expenditure is tested for impairment and transferred to development properties, and then amortised over the life of the reserves associated with the area of interest once mining operations have commenced. Recoverability of the carrying amount of the exploration and evaluation assets is dependent on successful development and commercial exploitation, or alternatively, sale of the respective areas of interest.

(i)       Payables

Liabilities are recognised for amounts to be paid in the future for goods and services received. Trade accounts payable are normally settled within 60 days. Payables are carried at amortised cost.

(j)       Provisions

Provisions are recognised when the group has a legal or constructive obligation, as a result of past events, for which it is probable that an outflow of economic benefits will result and that outflow can be reliably measured.

(k)      Revenue Recognition

Revenue is measured at the fair value of the consideration received or receivable.

Interest income

Interest revenue is recognised on a time proportionate basis that takes into account the effective yield on the financial assets.

(l)       Income Tax

The income tax expense for the period is the tax payable on the current period’s taxable income based on the national income tax rate for each jurisdiction adjusted by changes in deferred tax assets and liabilities attributable to temporary differences between the tax bases of assets and liabilities and their carrying amounts in the financial statements, and to unused tax losses.

Deferred tax assets and liabilities are recognised for temporary differences at the tax rates expected to apply when the assets are recovered or liabilities are settled, based on those tax rates which are enacted or substantively enacted for each jurisdiction. The relevant tax rates are applied to the cumulative amounts of deductible and taxable temporary differences to measure the deferred tax asset or liability. An exception is made for certain temporary differences arising from the initial recognition of an asset or a liability. No deferred tax asset or liability is recognised in relation to these temporary differences if they arose on goodwill or in a transaction, other than a business combination, that at the time of the transaction did not affect either accounting profit or taxable profit or loss.

Deferred tax liabilities and assets are not recognised for temporary differences between the carrying amount and tax bases of investments in controlled entities where the Company is able to control the timing of the reversal of the temporary differences and it is probable that the differences will not reverse in the foreseeable future.

Deferred tax assets are recognised for deductible temporary differences and unused tax losses only if it is probable that future taxable amounts will be available to utilise those temporary differences and losses.

The carrying amount of deferred income tax assets is reviewed at each reporting date and reduced to the extent that it is no longer probable that sufficient taxable profit will be available to allow all or part of the deferred income tax asset to be utilised.

Unrecognised deferred income tax assets are reassessed at each balance date and are recognised to the extent that it has become probable that future taxable profit will allow the deferred tax asset to be recovered.

Current and deferred tax balances attributable to amounts recognised directly in equity are also recognised directly in equity.

Deferred tax assets and deferred tax liabilities are offset only if a legally enforceable right exists to set off current tax assets against tax liabilities and the deferred tax liabilities relate to the same taxable entity and the same taxation authority.

 

Tax consolidation

Salt Lake Potash Limited and its wholly-owned Australian subsidiaries have formed an income tax consolidated group under the tax consolidation regime. Each entity in the group recognises its own current and deferred tax liabilities, except for any deferred tax assets resulting from unused tax losses and tax credits, which are immediately assumed by the Company. The current tax liability of each group entity is then subsequently assumed by the Company. The tax consolidated group has entered a tax sharing agreement whereby each company in the Group contributes to the income tax payable in proportion to their contribution to the net profit before tax of the tax consolidated group.

(m)     Employee Entitlements

Provision is made for the Group’s liability for employee benefits arising from services rendered by employees to balance date. Employee benefits that are expected to be settled within 12 months have been measured at the amounts expected to be paid when the liability is settled, plus related on-costs. Employee benefits expected to be settled more later than 12 months after the year end have been measured at the present value of the estimated future cash outflows to be made for those benefits.

(n)      Earnings per Share

Basic earnings per share (EPS) is calculated by dividing the net profit attributable to members of the Company for the reporting period, after excluding any costs of servicing equity, by the weighted average number of Ordinary Shares of the Company, adjusted for any bonus issue.

Diluted EPS is calculated by dividing the basic EPS earnings, adjusted by the after tax effect of financing costs associated with dilutive potential Ordinary Shares and the effect on revenues and expenses of conversion to Ordinary Shares associated with dilutive potential Ordinary Shares, by the weighted average number of Ordinary Shares and dilutive Ordinary Shares adjusted for any bonus issue.

 

(o)      Goods and Services Tax

Revenues, expenses and assets are recognised net of the amount of GST, except where the amount of GST incurred is not recoverable from the Australian Tax Office. In these circumstances the GST is recognised as part of the cost of acquisition of the asset or as part of the expense. Receivables and payables in the statement of financial position are shown inclusive of GST.

Cash flows are presented in the cash flow statement on a gross basis, except for the GST component of investing and financing activities, which are disclosed as operating cash flows.

(p)      Acquisition of Assets

A group of assets may be acquired in a transaction which is not a business combination. In such cases the cost of the group is allocated to the individual identifiable assets (including intangible assets that meet the definition of and recognition criteria for intangible assets in AASB 138) acquired and liabilities assumed on the basis of their relative fair values at the date of purchase.

(q)      Impairment of Non-Current Assets

The Group assesses at each reporting date whether there is an indication that a non-current asset may be impaired. If any such indication exists, or when annual impairment testing for an asset is required, the Group makes an estimate of the asset’s recoverable amount. An asset’s recoverable amount is the higher of its fair value less costs of disposal and its value in use and is determined for an individual asset, unless the asset does not generate cash inflows that are largely independent of those from other assets or groups of assets and the asset’s value in use cannot be estimated to be close to its fair value. In such cases the asset is tested for impairment as part of the cash-generating unit to which it belongs. When the carrying amount of an asset or cash-generating unit exceeds its recoverable amount, the asset or cash-generating unit is considered impaired and is written down to its recoverable amount.

In assessing the value in use, the estimated future cash flows are discounted to their present value using a pre-tax discount rate that reflects current market assessments of the time value of money and the risks specific to the asset.

An assessment is also made at each reporting date as to whether there is any indication that previously recognised impairment losses may no longer exist or may have decreased. If such indication exists, the recoverable amount is estimated. A previously recognised impairment loss is reversed only if there has been a change in the estimates used to determine the asset’s recoverable amount since the last impairment loss was recognised. If that is the case the carrying amount of the asset is increased to its recoverable amount. That increased amount cannot exceed the carrying amount that would have been determined, net of depreciation, had no impairment loss been recognised for the asset in prior years. Such reversal is recognised in profit or loss. After such a reversal the depreciation charge is adjusted in future periods to allocate the asset’s revised carrying amount, less any residual value, on a systematic basis over its remaining useful life.

(r)      Issued and Unissued Capital

Ordinary Shares are classified as equity. Issued and paid up capital is recognised at the fair value of the consideration received by the Company.

Incremental costs directly attributable to the issue of new shares or options are shown in equity as a deduction, net of tax, from the proceeds.

(s)      Foreign Currencies

(i)         Functional and presentation currency

The functional currency of each of the Group’s entities is measured using the currency of the primary economic environment in which that entity operates. The consolidated financial statements are presented in Australian dollars which is the Company’s functional and presentation currency.

(ii)           Transactions and balances

Foreign currency transactions are translated into functional currency using the exchange rates prevailing at the date of the transaction. Foreign currency monetary items are translated at the year-end exchange rate. Non-monetary items measured at historical cost continue to be carried at the exchange rate at the date of the transaction.

Exchange differences arising on the translation of monetary items are recognised in the Statement Profit or Loss and other Comprehensive Income, except where deferred in equity as a qualifying cash flow or net investment hedge.

Exchange differences arising on the translation of non-monetary items are recognised directly in equity to the extent that the gain or loss is directly recognised in equity, otherwise the exchange difference is recognised in the other Comprehensive Income.

(iii)          Group companies

The financial results and position of foreign operations whose functional currency is different from the Group’s presentation currency are translated as follows:

·           assets and liabilities are translated at year-end exchange rates prevailing at that reporting date;

·           income and expenses are translated at average exchange rates for the period; and

·           items of equity are translated at the historical exchange rates prevailing at the date of the transaction.

Exchange differences arising on translation of foreign operations are transferred directly to the group’s foreign currency translation reserve in the statement of financial position. These differences are recognised in the Statement of Profit or Loss and other Comprehensive Income in the period in which the operation is disposed.

(t)         Share-Based Payments

Equity-settled share-based payments are provided to officers, employees, consultants and other advisors. These share-based payments are measured at the fair value of the equity instrument at the grant date. Fair value is determined using the Binomial option pricing model. Further details on how the fair value of equity-settled share based payments has been determined can be found in Note 20.

The fair value determined at the grant date is expensed on a straight-line basis over the vesting period, based on the Company’s estimate of equity instruments that will eventually vest. At each reporting date, the Company revises its estimate of the number of equity instruments expected to vest. The impact of the revision of the original estimates, if any, is recognised in profit or loss over the remaining vesting period, with a corresponding adjustment to the share based payments reserve.

Equity-settled share-based payments may also be provided as consideration for the acquisition of assets. Where Ordinary Shares are issued, the transaction is recorded at fair value based on the quoted price of the Ordinary Shares at the date of issue. The acquisition is then recorded as an asset or expensed in accordance with accounting standards.

(u)      Use and Revision of Accounting Estimates, Judgements and Assumptions

The preparation of the financial report requires management to make judgements, estimates and assumptions that affect the application of accounting policies and the reported amounts of assets, liabilities, income and expenses. Actual results may differ from these estimates. The estimates and underlying assumptions are reviewed on an ongoing basis. Revisions to accounting estimates are recognised in the period in which the estimate is revised if the revision affects only that period, or in the period of the revision and future periods if the revision affects both current and future periods.

In particular, information about significant areas of estimation uncertainty and critical judgements in applying accounting policies that have the most significant effect on the amounts recognised in the financial statements are described in the following notes:

·              Exploration and Evaluation Expenditure (Note 10)

·              Share-Based Payments (Note 20)

2.       SEGMENT INFORMATION

The Consolidated Entity operates in one operating segment and one geographical segment, being mineral exploration in Australia. This is the basis on which internal reports are provided to the Directors for assessing performance and determining the allocation of resources within the Consolidated Entity.

3.       FINANCE INCOME

2018

2017

Note

$

$

Interest income

238,208

123,477

238,208

123,477

4.       OTHER INCOME

2018

2017

Note

$

$

Gain on disposal of controlled entity1

454,468

Exploration Incentive Scheme

150,000

R&D tax incentive

456,709

456,709

604,468

Notes:

1  During the 2017 year, the Company sold its United States subsidiary, Golden Eagle Uranium, for a nominal amount which resulted in a gain on disposal of A$454,468 relating to prior exchange differences on translation of Golden Eagle Uranium that have been transferred from the foreign currency translation reserve.

5.       EXPENSES

2018

2017

Note

$

$

(a)        Depreciation included in statement of comprehensive income

Depreciation of plant and equipment

9

75,031

37,088

 

(b)        Employee benefits expense (including KMP)

Salaries and wages

1,942,801

 1,342,932

Superannuation expense

176,466

126,503

Share-based payment expense

20

1,284,062

580,976

Total employment expenses included in profit or loss

3,403,329

 2,050,411

6.       INCOME TAX

2018

2017

$

$

(a)        Recognised in the statement of comprehensive income

Current income tax

Current income tax benefit in respect of the current year

Deferred income tax

Deferred income tax

Income tax expense reported in the statement of Profit or Loss and other Comprehensive income

(b)        Reconciliation between tax expense and accounting loss before income tax

Accounting loss before income tax

(11,327,108)

 (9,200,509)

At the domestic income tax rate of 27.5% (2017: 27.5%)

(3,114,955)

(2,530,140)

Expenditure not allowable for income tax purposes

511,763

280,752

Income not assessable for income tax purposes

(125,595)

(124,979)

Adjustment in respect of current income tax of previous years

(3,447)

Deferred tax assets not brought to account

2,732,234

2,374,367

Income tax expense/(benefit) reported in the statement of Profit or Loss and other Comprehensive income

 

2018

2017

$

$

(c)        Deferred Tax Assets and Liabilities

Deferred income tax at 30 June relates to the following:

Deferred Tax Liabilities

Accrued income

4,833

6,110

Exploration and evaluation assets

43,209

43,209

Deferred tax assets used to offset deferred tax liabilities

(48,042)

(49,319) 

Deferred Tax Assets

Accrued expenditure

21,813

7,200

Capital allowances

243,070

341,543

Tax losses available for offset against future taxable income

9,183,494

6,368,677

Deferred tax assets used to offset deferred tax liabilities

(48,042)

 (49,319)

Deferred tax assets not brought to account

(9,400,335)

 (6,668,101)

 

The benefit of deferred tax assets not brought to account will only be brought to account if:

·      future assessable income is derived of a nature and of an amount sufficient to enable the benefit to be realised;

·      the conditions for deductibility imposed by tax legislation continue to be complied with; and

·      no changes in tax legislation adversely affect the Group in realising the benefit.

Deferred tax assets have not been recognised in respect to tax losses because it is not probable that future taxable profit will be available against which the Group can utilise the benefits.

 

(d)        Tax Consolidation

The Company and its wholly-owned Australian resident entities have formed a tax consolidated group and are therefore taxed as a single entity. The head entity within the tax consolidated group is Salt Lake Potash Limited.

7.       CASH AND CASH EQUIVALENTS

2018

2017

$

$

 

Cash on hand and at bank

1,596,390

15,524,703

Deposit on call

4,113,056

72,056

5,709,446

15,596,759

8.       TRADE AND OTHER RECEIVABLES

2018

2017

$

$

 

Accrued interest

17,572

22,216

GST and other receivables

209,701

277,842

227,273

300,058

9.       PROPERTY, PLANT AND EQUIPMENT

2018

2017

$

$

(a)        Plant and Equipment

Gross carrying amount – at cost

652,644

345,780

Accumulated depreciation

(117,300)

(42,269)

Carrying amount at end of year, net of accumulated depreciation

535,344

303,511

 

(b)        Reconciliation

Carrying amount at beginning of year, net of accumulated depreciation

303,511

115,275

Additions

306,864

225,324

Depreciation charge

(75,031)

(37,088)

Carrying amount at end of year, net of accumulated depreciation

535,344

303,511

Finance Leases

The carrying value of plant and equipment held under finance leases at 30 June 2018 was $55,857 (2017: $64,036). Additions during the year include $Nil (2017: $64,036) of plant and equipment under finance lease.

10.     EXPLORATION AND EVALUATION EXPENDITURE

2018

2017

Note

$

$

(a)        Areas of Interest

SOP Project

2,276,736

2,276,736

Carrying amount at end of year, net of impairment1

2,276,736

(b)        Reconciliation

Carrying amount at start of year

2,276,736

2,276,736

Impairment losses

Carrying amount at end of year net of impairment 1

2,276,736

 

Notes:

1 The ultimate recoupment of costs carried forward for exploration and evaluation is dependent on the successful development and commercial exploitation or sale of the respective areas of interest.

 

SOP Project

Salt Lake holds a number of large salt lake brine projects (Projects) in Western Australia and the Northern Territory, each having potential to produce highly sought after Sulphate of Potash (SOP) for domestic and international fertiliser markets.

11.     TRADE AND OTHER PAYABLES

2018

2017

$

$

Trade creditors

1,483,554

1,250,959

Accrued expenses

136,973

97,832

1,620,527

1,348,791

 

Terms and conditions of the above financial liabilities:

–    Trade payables are non-interest bearing and are normally settled on 30-day terms.

12.     PROVISIONS

2018

2017

$

$

Statutory employee benefits

57,462

19,181

57,462

19,181

 

13.     CONTRIBUTED EQUITY

30 June 2018
$

30 June 2017
$

Share Capital

175,049,596 (30 June 2017: 175,007,596) Ordinary Shares

123,501,153

123,484,561

123,501,153

123,484,561

(a)        Movements in Ordinary Shares During the Past Two Years Were as Follows:

Number of Ordinary Shares

Issue Price

$

$

01-Jul-17

Opening Balance

175,007,596

123,484,561

18-Aug-17

Share issue 1

42,000

0.44

18,476

Jul-17 to Jun-18

Share issue costs

(1,884)

30-Jun-18

Closing balance

175,049,596

123,501,153

01-Jul-16

Opening Balance

133,827,596

106,761,669

09-Sep-16

Share issue 1

180,000

0.48

86,400

02-May-17

Share placement

 30,700,000

0.43

13,201,000

21-Jun-17

Share placement

 10,300,000

0.43

4,429,000

Jul-16 to Jun-17

Share issue costs

(993,508)

30-Jun-17

Closing balance

175,007,596

123,484,561

 

Notes:

1        Shares issued to a key consultant of the Company in lieu of fees.

 

 

(b)        Rights Attaching to Ordinary Shares:

 

The rights attaching to fully paid Ordinary Shares (Ordinary Shares) arise from a combination of the Company’s Constitution, statute and general law.

Ordinary Shares issued following the exercise of Unlisted Options in accordance with Note 14(c) or Performance Shares in accordance with Note 14(d) or Performance Rights in accordance with Note 14(e) will rank equally in all respects with the Company’s existing Ordinary Shares. 

Copies of the Company’s Constitution are available for inspection during business hours at the Company’s registered office. The clauses of the Constitution contain the internal rules of the Company and define matters such as the rights, duties and powers of its shareholders and directors, including provisions to the following effect (when read in conjunction with the Corporations Act 2001 or the listing rules of the ASX and AIM (Listing Rules)).

(i)       Shares

The issue of shares in the capital of the Company and options over unissued shares by the Company is under the control of the Directors, subject to the Corporations Act 2001, ASX Listing Rules and any rights attached to any special class of shares.

(ii)      Meetings of Members

Directors may call a meeting of members whenever they think fit. Members may call a meeting as provided by the Corporations Act 2001. The Constitution contains provisions prescribing the content requirements of notices of meetings of members and all members are entitled to a notice of meeting. A meeting may be held in two or more places linked together by audio-visual communication devices. A quorum for a meeting of members is two shareholders.

The Company holds annual general meetings in accordance with the Corporations Act 2001 and the Listing Rules.

(iii)     Voting

Subject to any rights or restrictions at the time being attached to any shares or class of shares of the Company, each member of the Company is entitled to receive notice of, attend and vote at a general meeting. Resolutions of members will be decided by a show of hands unless a poll is demanded. On a show of hands each eligible voter present has one vote. However, where a person present at a general meeting represents personally or by proxy, attorney or representative more than one member, on a show of hands the person is entitled to one vote only despite the number of members the person represents.

On a poll each eligible member has one vote for each fully paid share held and a fraction of a vote for each partly paid share determined by the amount paid up on that share.

(iv)     Changes to the Constitution

The Company’s Constitution can only be amended by a special resolution passed by at least three quarters of the members present and voting at a general meeting of the Company. At least 28 days’ written notice specifying the intention to propose the resolution as a special resolution must be given.

(v)      Listing Rules

Provided the Company remains admitted to the Official List of the ASX, then despite anything in its Constitution, no act may be done that is prohibited by the Listing Rules, and authority is given for acts required to be done by the Listing Rules. The Company’s Constitution will be deemed to comply with the Listing Rules as amended from time to time.

14.     RESERVES

 

2018

2017

Note

$

$

Share-based payments reserve

14(b)

2,105,886

821,824

2,105,886

821,824

(a)        Nature and Purpose of Reserves

(i)         Share-based payments reserve

The share-based payments reserve is used to record the fair value of Unlisted Options, Performance Rights and Performance Shares issued by the Group.            

 

(b)        Movements in the share-based payments reserve during the past two years were as follows:

Number of Performance Rights

Number of Performance Shares

Number of
Unlisted Options

$

01-Jul-17

Opening Balance

4,100,000

22,500,000

2,500,000

821,824

23-Sep-17

Performance Rights forfeited

(1,000,000)

28-Nov-17

Issue of unlisted options

1,100,000

22-Dec-17

Issue of unlisted options

800,000

22-Dec-17

Issue of Performance Rights

2,300,000

Jul-17 to Jun-18

Share based payments expense

1,284,062

30-Jun-18

Closing balance

5,400,000

22,500,000

4,400,000

2,105,886

01-Jul-16

Opening Balance

22,500,000

2,705,443

240,848

22-Nov-16

Expiry of unlisted options

(205,443)

01-Mar-17

Issue of Performance Rights

3,000,000

09-Jun-17

Issue of Performance Rights

200,000

20-Jun-17

Issue of Performance Rights

1,000,000

30-Jun-17

Lapsed Performance Rights

(100,000)

Jul-16 to Jun-17

Share based payments expense

580,976

30-Jun-17

Closing balance

4,100,000

22,500,000

2,500,000

821,824

 

(c)        Terms and Conditions of Unlisted Options

The Unlisted Options are granted based upon the following terms and conditions:

·      Each Unlisted Option entitles the holder to the right to subscribe for one Ordinary Share upon the exercise of each Unlisted Option;

·      The Unlisted Options outstanding at the end of the financial year have the following exercise prices and expiry dates:

·             750,000 Unlisted Options exercisable at $0.40 each on or before 29 April 2019;

·             750,000 Unlisted Options exercisable at $0.50 each on or before 29 April 2020;

·             1,000,000 Unlisted Options exercisable at $0.60 each on or before 29 April 2021;

·             250,000 Unlisted Options exercisable at $0.40 each on or before 30 June 2021;

·             500,000 Unlisted Options exercisable at $0.50 each on or before 30 June 2021;

·             750,000 Unlisted Options exercisable at $0.60 each on or before 30 June 2021; and

·             400,000 Unlisted Options exercisable at $0.70 each on or before 30 June 2021.

·      The Unlisted Options are exercisable at any time prior to the Expiry Date, subject to vesting conditions being satisfied (if applicable);

·      Ordinary Shares issued on exercise of the Unlisted Options rank equally with the then Ordinary Shares of the Company;

·      Application will be made by the Company to ASX and to the AIM market of the London Stock Exchange for official quotation of the Ordinary Shares issued upon the exercise of the Unlisted Options;

·      If there is any reconstruction of the issued share capital of the Company, the rights of the Unlisted Option holders may be varied to comply with the Listing Rules which apply to the reconstruction at the time of the reconstruction; and

·      No application for quotation of the Unlisted Options will be made by the Company.

(d)        Terms and Conditions of Performance Shares

The Convertible Performance Shares (Performance Shares) were granted as part of the consideration to acquire Australia Salt Lake Potash Pty Ltd on the following terms and conditions:

·        Each Performance Share will convert into one Ordinary Share upon the satisfaction, prior to the Expiry Date, of the respective Milestone:

–      5,000,000 Performance Shares subject to Class A Milestone: The announcement by the Company to ASX of the results of a positive Pre-feasibility Study on all or part of the Project Licences;

–      7,500,000 Performance Shares subject to Class B Milestone: The announcement by the Company to ASX of the results of a positive Definitive Feasibility Study on all or part of the Project Licences; and

–      10,000,000 Performance Shares subject to Class C Milestone: The commencement of construction activities for a mining operation on all or part of the Project Licences (including the commencement of ground breaking for the construction of infrastructure and/or processing facilities) following a final investment decision by the Board as per the project development schedule and budget in accordance with the Definitive Feasibility Study, within five years from the date of issue.

·        Expiry Date means:

–      in relation to the Class A Performance Shares, 31 December 2018 (amended following Shareholder approval on 11 June 2018);

–      in relation to the Class B Performance Shares, 31 December 2019 (amended following Shareholder approval on 11 June 2018);

and

–      in relation to the Class C Performance Shares, 5 years from the date of issue (12 June 2020);

·        If the Milestone for a Performance Share is not met by the Expiry Date, the total number of the relevant class of Performance Shares will convert into one Ordinary Share per holder;

·        The Company shall allot and issue Ordinary Shares immediately upon conversion of the Performance Shares for no consideration;

·        Ordinary Shares issued on conversion of the Performance Shares rank equally with the then Ordinary Shares of the Company;

·        In the event of any reconstruction, consolidation or division into (respectively) a lesser or greater number of securities of the Ordinary Shares, the Performance Shares shall be reconstructed, consolidated or divided in the same proportion as the Ordinary Shares are reconstructed, consolidated or divided and, in any event, in a manner which will not result in any additional benefits being conferred on the Performance Shareholders which are not conferred on the Ordinary Shareholders;

·        The Performance Shareholders shall have no right to vote, subject to the Corporations Act;

·        No application for quotation of the Performance Shares will be made by the Company; and

·        The Performance Shares are not transferable.

(e)        Terms and Conditions of Performance Rights

The Performance Rights are granted based upon the following terms and conditions:

·      Each Performance Right automatically converts into one Ordinary Share upon vesting of the Performance Right;

·      Each Performance Right is subject to performance conditions (as determined by the Board from time to time) which must be satisfied in order for the Performance Right to vest;

·      The Performance Rights have the following expiry dates:

–        1,350,000 Performance Rights subject to the PFS Milestone expiring on 31 December 2018 (amended following Shareholder approval on 11 June 2018);

–        1,350,000 Performance Rights subject to the BFS Milestone expiring on 31 December 2019 (amended following Shareholder approval on 11 June 2018);

–        1,350,000 Performance Rights subject to the Construction Milestone expiring on 30 June 2020; and

–        1,350,000 Performance Rights subject to the Production Milestone expiring on 30 June 2021.

·      Ordinary Shares issued on conversion of the Performance Rights rank equally with the then Ordinary Shares of the Company;

·      Application will be made by the Company to ASX AIM market of the London Stock Exchange for official quotation of the Ordinary Shares issued upon conversion of the Performance Rights;

·      If there is any reconstruction of the issued share capital of the Company, the rights of the Performance Right holders may be varied to comply with the Listing Rules which apply to the reconstruction at the time of the reconstruction; and

·      No application for quotation of the Performance Rights will be made by the Company.

15.     STATEMENT OF CASH FLOWS

(a)        Reconciliation of the Loss after Tax to the Net Cash Flows from Operations

 

2018

2017

$

$

Net loss for the year

(11,327,108)

(9,200,509)

Adjustment for non-cash income and expense items

Depreciation of plant and equipment  

75,031

37,088

Share based payment expense

1,284,062

580,976

Gain on disposal of controlled entity

(454,468)

Shares issued in lieu of fees

18,476

86,400

Change in operating assets and liabilities

(Increase)/decrease in trade and other receivables  

84,784

(173,475)

Increase in trade and other payables  

280,212

693,100

Increase in provisions

38,281

7,469

Net cash outflow from operating activities

(9,546,262)

(8,423,419)

 

 

16.     EARNINGS PER SHARE

30 June 2018

$

30 June 2017

$

The following reflects the income and share data used in the calculations of basic and diluted earnings per share:

Net loss attributable to the owners of the Company used in calculating basic and diluted earnings per share

(11,327,108)

(9,200,509)

 

 

Number of Shares
2018

Number of Shares
2017

Weighted average number of ordinary shares used in calculating basic and diluted earnings per share

175,043,958

139,217,150

 

(a)        Non-Dilutive Securities

As at balance date, 4,400,000 Unlisted Options (which represent 4,400,000 potential Ordinary Shares), 22,500,000 Performance Shares (which represent 22,500,000 potential Ordinary Shares) and 5,400,000 Performance Rights (which represent 5,400,000 potential Ordinary Shares) were considered non-dilutive as they would decrease the loss per share.

 

(b)        Conversions, Calls, Subscriptions or Issues after 30 June 2018

No securities have been issued since 30 June 2018.

There have been no other conversions to, calls of, or subscriptions for Ordinary Shares or issues of potential Ordinary Shares since the reporting date and before the completion of this financial report.

17.     RELATED PARTIES

(a)        Subsidiaries

% Equity Interest

Name

Country of Incorporation

2018
%

2017
%

Ultimate parent entity:

Salt Lake Potash Limited

Australia

Subsidiaries of Salt Lake Potash Limited

Australia Salt Lake Potash Pty Ltd (ASLP)

Australia

100

100

Subsidiary of ASLP

Piper Preston Pty Ltd

Australia

100

100

Peak Coal Pty Ltd

Australia

(i)

100

(i)      Peak Coal was deregistered in April 2018.

(b)        Ultimate Parent

Salt Lake Potash Limited is the ultimate parent of the Group.

(c)        Transactions with Related Parties

Balances and transactions between the Company and its subsidiaries, which are related parties of the Company, have been eliminated on consolidation and are not disclosed in this note. Transactions with Key Management Personnel, including remuneration, are included at Note 18.

18.     KEY MANAGEMENT PERSONNEL

(a)        Details of Key Management Personnel

The KMP of the Group during or since the end of the financial year were as follows:

 

Directors

Mr Ian Middlemas                  Chairman

Mr Matthew Syme                   Chief Executive Officer

Mr Mark Pearce                       Non-Executive Director
Mr Bryn Jones                         Non-Executive Director

Mr Mark Hohnen                     Non-Executive Director (resigned 1 December 2017)

 

Other KMP

Mr David Maxton                     Chief Operating Officer (appointed 12 April 2018)

Mr Clint McGhie                      Chief Financial Officer and Company Secretary (appointed 10 August 2018)

Mr Grant Coyle                        Business Development Manager (appointed 16 July 2018)

Mr Sam Cordin                       Chief Financial Officer and Company Secretary (resigned 10 August 2018)

 

Unless otherwise disclosed, the KMP held their position from 1 July 2017 until the date of this report.

 

2018

2017

$

$

Short-term employee benefits

726,607

591,898

Post-employment benefits

49,875

52,928

Share-based payments

595,394

556,016

Total compensation

1,371,876

1,200,842

(b)        Loans from Key Management Personnel

No loans were provided to or received from Key Management Personnel during the year ended 30 June 2018 (2017: Nil).

(c)        Other Transactions

Apollo Group Pty Ltd, a Company of which Mr Mark Pearce is a Director and beneficial shareholder, was paid or is payable $150,000 (2017: $150,000) for the provision of serviced office facilities, corporate and administration services for the year ended 30 June 2018. The amount is based on a monthly retainer due and payable in advance, with no fixed term, and is able to be terminated by either party with one month’s notice. At 30 June 2018, $25,000 (2017: $12,500) was included as a current liability in the Statement of Financial Position.

19.     PARENT ENTITY DISCLOSURES

2018

2017

$

$

 

(a)        Financial Position

Assets

Current assets

5,929,459

15,738,697

Non-current assets

2,106,089

2,027,221

Total assets

8,035,548

17,765,918

Liabilities

Current liabilities

1,689,818

1,430,620

Non-current liabilities

38,992

Total liabilities

1,728,810

1,430,620

Equity

Contributed equity

123,501,153

123,484,561

Accumulated losses

(119,300,301)

(107,971,087)

Reserves

2,105,886

821,824

Total equity

6,306,738

16,335,298

(b)        Financial Performance

Loss for the year

(11,329,214)

(10,366,123)

Total comprehensive loss

(11,329,214)

(10,366,123)

 

(c)        Other information

 

The Company has not entered into any guarantees in relation to its subsidiaries.

 

Refer to Note 23 for details of contingent assets and liabilities.

20.     SHARE-BASED PAYMENTS

(a)        Recognised Share-based Payment Expense

From time to time, the Group provides incentive Unlisted Options and Performance Rights to officers, employees, consultants and other key advisors as part of remuneration and incentive arrangements. The number of options or rights granted, and the terms of the options or rights granted are determined by the Board. Shareholder approval is sought where required.

In the current and prior year, the Company has also granted shares in lieu of payments to a consultant in accordance with the terms of engagement.

During the past two years, the following equity-settled share-based payments have been recognised:

 

2018

2017

$

$

Expenses arising from equity-settled share-based payment transactions relating incentive options and performance rights

1,284,062

580,976

Expenses arising from equity-settled share-based payment transactions to suppliers and consultants

18,476

86,400

Total share-based payments recognised during the year

1,302,538

667,376

         

(b)        Summary of Unlisted Options and Performance Rights Granted as Share-based Payments

 

The following Unlisted Options and Performance Rights were granted as share-based payments during the past two years:

 

Series

Issuing Entity

Security Type

Number

Grant
Date

Expiry Date

Exercise Price

$

Grant Date Fair Value

$

2018

Series 20

Salt Lake Potash Limited

Options

250,000

22-Nov-17

30-Jun-21

0.40

0.284

Series 21

Salt Lake Potash Limited

Options

350,000

22-Nov-17

30-Jun-21

0.50

0.256

Series 22

Salt Lake Potash Limited

Options

500,000

22-Nov-17

30-Jun-21

0.60

0.233

Series 23

Salt Lake Potash Limited

Options

150,000

15-Dec-17

30-Jun-21

0.50

0.228

Series 24

Salt Lake Potash Limited

Options

250,000

15-Dec-17

30-Jun-21

0.60

0.207

Series 25

Salt Lake Potash Limited

Options

400,000

15-Dec-17

30-Jun-21

0.70

0.188

Series 26

Salt Lake Potash Limited

Rights

575,000

15-Dec-17

30-Jun-18

0.486

Series 27

Salt Lake Potash Limited

Rights

575,000

15-Dec-17

30-Jun-19

0.486

Series 28

Salt Lake Potash Limited

Rights

575,000

15-Dec-17

30-Jun-20

0.486

Series 29

Salt Lake Potash Limited

Rights

575,000

15-Dec-17

30-Jun-21

0.486

2017

Series 4

Salt Lake Potash Limited

Rights

550,000

30-Nov-16

30-Jun-18

0.506

Series 5

Salt Lake Potash Limited

Rights

550,000

30-Nov-16

30-Jun-19

0.506

Series 6

Salt Lake Potash Limited

Rights

550,000

30-Nov-16

30-Jun-20

0.506

Series 7

Salt Lake Potash Limited

Rights

550,000

30-Nov-16

30-Jun-21

0.506

Series 8

Salt Lake Potash Limited

Rights

200,000

07-Feb-17

30-Jun-18

0.543

Series 9

Salt Lake Potash Limited

Rights

200,000

07-Feb-17

30-Jun-19

0.543

Series 10

Salt Lake Potash Limited

Rights

200,000

07-Feb-17

30-Jun-20

0.543

Series 11

Salt Lake Potash Limited

Rights

200,000

07-Feb-17

30-Jun-21

0.543

Series 12

Salt Lake Potash Limited

Rights

50,000

08-Jun-17

30-Jun-18

0.428

Series 13

Salt Lake Potash Limited

Rights

50,000

08-Jun-17

30-Jun-19

0.428

Series 14

Salt Lake Potash Limited

Rights

50,000

08-Jun-17

30-Jun-20

0.428

Series 15

Salt Lake Potash Limited

Rights

50,000

08-Jun-17

30-Jun-21

0.428

Series 16

Salt Lake Potash Limited

Rights

250,000

08-Jun-17

30-Jun-18

0.412

Series 17

Salt Lake Potash Limited

Rights

250,000

08-Jun-17

30-Jun-19

0.412

Series 18

Salt Lake Potash Limited

Rights

250,000

08-Jun-17

30-Jun-20

0.412

Series 19

Salt Lake Potash Limited

Rights

250,000

08-Jun-17

30-Jun-21

0.412

(c)        Summary of Unlisted Options and Performance Rights Granted as Share-based Payments

 

The following table illustrates the number and weighted average exercise prices (WAEP) of Unlisted Options granted as share-based payments at the beginning and end of the financial year:

 

Unlisted Options

2018
Number

2018
WAEP

2017
Number

2017
WAEP

Outstanding at beginning of year

2,500,000

$0.51

2,705,443

$0.81

Granted by the Company during the year

1,900,000

$0.57

Forfeited/cancelled/lapsed/expired

(205,443)

$4.46

Outstanding at end of year

4,400,000

$0.53

2,500,000

$0.51

Exercisable at end of year

3,500,000

$0.51

1,500,000

$0.45

 

The outstanding balance of Unlisted Options as at 30 June 2018 is represented by:

·             750,000 Unlisted Options exercisable at $0.40 each on or before 29 April 2019;

·             750,000 Unlisted Options exercisable at $0.50 each on or before 29 April 2020;

·             1,000,000 Unlisted Options exercisable at $0.60 each on or before 29 April 2021;’

·             250,000 Unlisted Options exercisable at $0.40 each on or before 30 June 2021;

·             500,000 Unlisted Options exercisable at $0.50 each on or before 30 June 2021;

·             750,000 Unlisted Options exercisable at $0.60 each on or before 30 June 2021; and

·             400,000 Unlisted Options exercisable at $0.70 each on or before 30 June 2021.

 

The following table illustrates the number and weighted average exercise prices (WAEP) of Performance Rights granted as share-based payments at the beginning and end of the financial year:

 

Performance Rights

2018
Number

2018
WAEP

2017
Number

2017
WAEP

Outstanding at beginning of year

4,100,000

Granted by the Company during the year

2,300,000

4,200,000

Forfeited/cancelled/lapsed/expired

(1,000,000)

(100,000)

Outstanding at end of year

5,400,000

4,100,000

 

The outstanding balance of Performance Rights as at 30 June 2018 is represented by:

·            1,350,000 Performance Rights subject to the PFS Milestone expiring on 31 December 2018 (amended following Shareholder approval on 12 June 2018);

·            1,350,000 Performance Rights subject to the BFS Milestone expiring on 31 December 2019 (amended following Shareholder approval on 12 June 2018);

·            1,350,000 Performance Rights subject to the Construction Milestone expiring on 30 June 2020; and

·            1,350,000 Performance Rights subject to the Production Milestone expiring on 30 June 2021.

 

(d)        Weighted Average Remaining Contractual Life

At 30 June 2018, the weighted average remaining contractual life of Unlisted Options on issue that had been granted as share-based payments was 2.39 years (2017: 2.93 years) and of Performance Rights on issue that had been granted as share-based payments was 1.75 years (2017: 2.5 years).

(e)        Range of Exercise Prices

At 30 June 2018, the range of exercise prices of Unlisted Options on issue that had been granted as share-based payments was $0.40 to $0.70 (2017: $0.40 to $0.60). Performance Rights have no exercise price.

(f)         Weighted Average Fair Value

The weighted average fair value of Unlisted Options granted as share-based payments by the Group during the year ended 30 June 2018 was $0.231 (2017: nil) and of Performance Rights granted as share-based payments was $0.486 (2017: $0.496).

 

(g)        Option and Performance Right Pricing Models

 

The fair value of the equity-settled share options granted is estimated as at the date of grant using the Binomial option valuation model taking into account the terms and conditions upon which the Unlisted Options were granted. The fair value of Performance Rights granted is estimated as at the date of grant based on the underlying share price (being the five day volume weighted average share price prior to issuance).

 

The table below lists the inputs to the valuation model used for share options and Performance Rights granted by the Group in the current and prior year:

 

2018

 

Inputs

Series 20

Series 21

Series 22

Series 23

Series 24

Series 25

Options

Exercise price

0.40

0.50

0.60

0.50

0.60

0.70

Grant date share price

0.50

0.50

0.50

0.465

0.465

0.465

Dividend yield 1

Volatility 2

70%

70%

70%

70%

70%

70%

Risk-free interest rate

1.99%

1.99%

1.99%

2.16%

2.16%

2.16%

Grant date

22-Nov-17

22-Nov-17

22-Nov-17

15-Dec-17

15-Dec-17

15-Dec-17

Expiry date

30-Jun-21

30-Jun-21

30-Jun-21

30-Jun-21

30-Jun-21

30-Jun-21

Expected life of option 3

3.61

3.61

3.61

3.54

3.54

3.54

Fair value at grant date

0.284

0.256

0.233

0.228

0.207

0.188

Notes:

1   The dividend yield reflects the assumption that the current dividend payout will remain unchanged.

2   The expected volatility reflects the assumption that the historical volatility is indicative of future trends, which may not necessarily be the actual outcome.

3   The expected life of the options is based on the expiry date of the options as there is limited track record of the early exercise of options.

 

Inputs

Series 26

Series 27

Series 28

Series 29

Performance Rights

Exercise price

Grant date share price

$0.465

$0.465

$0.465

$0.465

Grant date

15-Dec-17

15-Dec-17

15-Dec-17

15-Dec-17

Expiry date

30-Jun-18 3

30-Jun-19 4

30-Jun-20

30-Jun-21

Expected life of right 1

0.5 years

1.5 years

2.5 years

3.5 years

Fair value at grant date 2

$0.486

$0.486

$0.486

$0.486

Notes:

1   The expected life of the Performance Rights is based on the expiry date of the performance rights as there is limited track record of the early conversion of performance rights.

2    The fair value of Performance Rights granted is estimated as at the date of grant based on the underlying share price (being the five day volume weighted average share price prior to issuance).

3    Subsequent to grant, the expiry date was amended to 31 December 2018 following Shareholder approval on 11 June 2018. This has no impact on the fair value of the securities, however the period that the expense is being recognised over has been modified.

4    Subsequent to grant, the expiry date was amended to 31 December 2019 following Shareholder approval on 11 June 2018. This has no impact on the fair value of the securities, however the period that the expense is being recognised over has been modified.

 

2017

 

Inputs

Series 4

Series 5

Series 6

Series 7

Exercise price

Grant date share price

$0.51

$0.51

$0.51

$0.51

Grant date

30-Nov-16

30-Nov-16

30-Nov-16

30-Nov-16

Expiry date

30-Jun-18

30-Jun-19

30-Jun-20

30-Jun-21

Expected life of right 1

1.6 years

2.6 years

3.6 years

4.6 years

Fair value at grant date 2

$0.506

$0.506

$0.506

$0.506

 

Inputs

Series 8

Series 9

Series 10

Series 11

Exercise price

Grant date share price

$0.53

$0.53

$0.53

$0.53

Grant date

07-Feb-17

07-Feb-17

07-Feb-17

07-Feb-17

Expiry date

30-Jun-18

30-Jun-19

30-Jun-20

30-Jun-21

Expected life of right 1

1.3 years

2.3 years

3.3 years

4.3 years

Fair value at grant date 2

$0.577

$0.577

$0.577

$0.577

 

Inputs

Series 12

Series 13

Series 14

Series 15

Exercise price

Grant date share price

$0.43

$0.43

$0.43

$0.43

Grant date

08-Jun-17

08-Jun-17

08-Jun-17

08-Jun-17

Expiry date

30-Jun-18

30-Jun-19

30-Jun-20

30-Jun-21

Expected life of right 1

1.1 years

2.1 years

3.1 years

4.1 years

Fair value at grant date 2

$0.431

$0.431

$0.431

$0.431

 

Inputs

Series 16

Series 17

Series 18

Series 19

Exercise price

Grant date share price

$0.41

$0.41

$0.41

$0.41

Grant date

08-Jun-17

08-Jun-17

08-Jun-17

08-Jun-17

Expiry date

30-Jun-18

30-Jun-19

30-Jun-20

30-Jun-21

Expected life of right 1

1.0 years

2.0 years

3.0 years

4.0 years

Fair value at grant date 2

$0.431

$0.431

$0.431

$0.431

Notes:

1   The expected life of the Performance Rights is based on the expiry date of the performance rights as there is limited track record of the early conversion of performance rights.

2    The fair value of Performance Rights granted is estimated as at the date of grant based on the underlying share price (being the five day volume weighted average share price prior to issuance).

21.     AUDITORS’ REMUNERATION

The auditor of Salt Lake Potash Limited is Ernst and Young.

 

2018

2017

$

$

25,000

25,000

8,188

5,000

33,188

30,000

 

22.     FINANCIAL RISK MANAGEMENT OBJECTIVES AND POLICIES

(a)        Overview

The Group’s principal financial instruments comprise receivables, payables, finance leases, cash and short-term deposits. The main risks arising from the Group’s financial instruments are credit risk, liquidity risk and interest rate risk.

This note presents information about the Group’s exposure to each of the above risks, its objectives, policies and processes for measuring and managing risk, and the management of capital. Other than as disclosed, there have been no significant changes since the previous financial year to the exposure or management of these risks.

The Group manages its exposure to key financial risks in accordance with the Group’s financial risk management policy. Key risks are monitored and reviewed as circumstances change (e.g. acquisition of a new project) and policies are revised as required. The overall objective of the Group’s financial risk management policy is to support the delivery of the Group’s financial targets whilst protecting future financial security.

Given the nature and size of the business and uncertainty as to the timing and amount of cash inflows and outflows, the Group does not enter into derivative transactions to mitigate the financial risks. In addition, the Group’s policy is that no trading in financial instruments shall be undertaken for the purposes of making speculative gains. As the Group’s operations change, the Directors will review this policy periodically going forward.

The Board of Directors has overall responsibility for the establishment and oversight of the risk management framework. The Board reviews and agrees policies for managing the Group’s financial risks as summarised below.

 

(b)        Credit Risk

Credit risk is the risk of financial loss to the Group if a customer or counterparty to a financial instrument fails to meet its contractual obligations. This arises principally from cash and cash equivalents and trade and other receivables.

There are no significant concentrations of credit risk within the Group. The carrying amount of the Group’s financial assets represents the maximum credit risk exposure, as represented below:

 

2018

2017

$

$

Financial assets

Cash and cash equivalents

5,709,446

15,596,759

Trade and other receivables

227,273

300,058

5,936,719

15,896,817

 

With respect to credit risk arising from cash and cash equivalents, the Group’s exposure to credit risk arises from default of the counter party, with a maximum exposure equal to the carrying amount of these instruments. Where possible, the Group invests its cash and cash equivalents with banks that are rated the equivalent of investment grade and above. The Group’s exposure and the credit ratings of its counterparties are continuously monitored and the aggregate value of transactions concluded is spread amongst approved counterparties.

The Group does not have any significant customers and accordingly does not have significant exposure to bad or doubtful debts.

Trade and other receivables comprise interest accrued and GST refunds due. Where possible the Consolidated Entity trades only with recognised, creditworthy third parties. Receivable balances are monitored on an ongoing basis with the result that the Group’s exposure to bad debts is not significant. At 30 June 2018, none (2017 none) of the Group’s receivables are past due.

(c)        Liquidity Risk

 

Liquidity risk is the risk that the Group will not be able to meet its financial obligations as they fall due. The Board’s approach to managing liquidity is to ensure, as far as possible, that the Group will always have sufficient liquidity to meet its liabilities when due. At 30 June 2018 and 2017, the Group had sufficient liquid assets to meet its financial obligations.

The contractual maturities of financial liabilities, including estimated interest payments, are provided below. There are no netting arrangements in respect of financial liabilities.

≤6 Months

$

6-12 Months
$

1-5 Years

$

≥5 Years

$

Total

$

2018
Group

Financial Liabilities

Finance lease

5,914

5,915

38,992

50,821

Trade and other payables

1,620,527

1,620,527

1,626,441

5,915

38,992

1,671,348

2017
Group

Financial Liabilities

Finance lease

5,914

5,914

50,821

62,649

Trade and other payables

1,348,791

1,348,791

1,354,705

5,914

50,821

1,411,440

(d)        Interest Rate Risk

 

The Group does not have any long-term borrowing or long term deposits, which would expose it to significant cash flow interest rate risk.

The Group currently does not engage in any hedging or derivative transactions to manage interest rate risk.

(e)        Capital Management

The Group defines its Capital as total equity of the Group, being $7,019,989 as at 30 June 2018 (2017: $17,046,443). The Group manages its capital to ensure that entities in the Group will be able to continue as a going concern while financing the development of its projects through primarily equity based financing. The Board’s policy is to maintain a strong capital base so as to maintain investor, creditor and market confidence and to sustain future development of the business. Given the stage of development of the Group, the Board’s objective is to minimise debt and to raise funds as required through the issue of new shares.

The Group is not subject to externally imposed capital requirements.

There were no changes in the Group’s approach to capital management during the year. During the next 12 months, the Group will continue to explore project financing opportunities, primarily consisting of additional issues of equity.

(f)         Fair Value

The Group uses various methods in estimating the fair value of a financial instrument. The methods comprise:

·      Level 1 – the fair value is calculated using quoted prices in active markets.

·      Level 2 – the fair value is estimated using inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly (as prices) or indirectly (derived from prices).

·      Level 3 – the fair value is estimated using inputs for the asset or liability that are not based on observable market data.

At 30 June 2018 and 30 June 2017, the carrying value of the Group’s financial assets and liabilities approximate their fair value.

23.     CONTINGENT ASSETS AND LIABILITIES

(i)         Contingent Assets

 

As at the date of this report, no contingent assets had been identified in relation to the 30 June 2018 financial year.

 

(ii)        Contingent Liability

 

As at the date of this report, no contingent liabilities had been identified in relation to the 30 June 2018 financial year.

24.     COMMITMENTS

Management have identified the following material commitments for the consolidated group as at 30 June 2018 and 30 June 2017:

 

2018

2017

$

$

Exploration commitments

Within one year

1,896,500

1,061,000

Later than one year but not later than five years

1,896,500

1,061,000

25.     EVENTS SUBSEQUENT TO BALANCE DATE

(i)         Announced the results from a Scoping Study on the Lake Wells project which confirmed its potential to produce low cost SOP by solar evaporation of lake brines for domestic and international fertiliser markets; and

(ii)        On 10 August 2018, the Company appointed Mr Clint McGhie as Company Secretary and Chief Financial Officer following the resignation of Mr Sam Cordin.

Other than as above, as at the date of this report there are no matters or circumstances which have arisen since 30 June 2018 that have significantly affected or may significantly affect:

·           the operations, in financial years subsequent to 30 June 2018, of the Consolidated Entity;

·           the results of those operations, in financial years subsequent to 30 June 2018, of the Consolidated Entity; or

·           the state of affairs, in financial years subsequent to 30 June 2018, of the Consolidated Entity.

 

ASX ADDITIONAL INFORMATION

1.     TWENTY LARGEST HOLDERS OF LISTED SECURITIES 

The names of the twenty largest holders of listed securities as at 31 August 2018 are listed below:

 

Name

Number of
Ordinary Shares

Percentage of Ordinary Shares

COMPUTERSHARE CLEARING PTY LTD

43,433,570

24.81

ARREDO PTY LTD

11,000,000

6.28

CITICORP NOMINEES PTY LIMITED

8,804,536

5.03

PERSHING AUSTRALIA NOMINEES PTY LTD

8,016,017

4.58

HOWITT MGMT PTY LTD

4,620,000

2.64

HOPETOUN CONSULTING PTY LTD

4,500,000

2.57

MR MARK STUART SAVAGE

3,600,000

2.06

AWJ FAMILY PTY LTD

3,020,000

1.73

HSBC CUSTODY NOMINEES (AUSTRALIA) LIMITED

3,006,923

1.72

J P MORGAN NOMINEES AUSTRALIA LIMITED

2,720,100

1.55

AROIDA INVESTMENTS PTY LTD

2,439,636

1.39

MR NEIL DAVID IRVINE

2,307,493

1.32

AEGEAN CAPITAL PTY LTD

2,237,749

1.28

MR TERRY PATRICK COFFEY & HAWKES BAY NOMINEES LIMITED

2,230,064

1.27

BELL POTTER NOMINEES LTD

2,018,721

1.15

ROSEBERRY HOLDINGS PTY LTD

2,000,000

1.14

APOLLO GROUP PTY LTD

2,000,000

1.14

SUNSET CAPITAL MANAGEMENT PTY LTD

1,800,000

1.03

VYNBEN PTY LTD

1,725,498

0.99

D GRAY & CO PTY LTD

1,610,000

0.92

Total Top 20

113,090,307

64.60

Others

61,959,289

35.40

Total Ordinary Shares on Issue

175,049,596

100.00

2.     DISTRIBUTION OF EQUITY SECURITIES 

An analysis of numbers of holders of listed securities by size of holding as at 31 August 2018 is listed below:

 

Ordinary Shares

Distribution

Number of
Shareholders

Number of
Ordinary Shares

1 – 1,000

1,101

300,105

1,001 – 5,000

399

1,031,382

5,001 – 10,000

157

1,222,564

10,001 – 100,000

326

13,141,101

More than 100,000

140

159,354,444

Totals

2,123

175,049,596

 

There were 1,135 holders of less than a marketable parcel of Ordinary Shares.

3.     VOTING RIGHTS

 See Note 13(b) of the Notes to the Financial Statements.

4.     SUBSTANTIAL SHAREHOLDERS 

Substantial holders who have notified the Company in accordance with section 671B of the Corporations Act 2001are as follows:

 

Distribution

Number of
Ordinary Shares

Lombard Odier Asset Management (Europe) Limited

17,071,000

Arredo Pty Ltd

11,000,000

5.     UNQUOTED SECURITIES 

Performance Shares

Performance Shares Subject to Pre-Feasibility Study Milestone (Class A) expiring

Performance Shares Subject to Definitive Feasibility Study Milestone (Class B) expiring

Performance Shares Subject to Construction Milestone (Class C) expiring

Holder

31-Dec-18

31-Dec-19

12-Jun-20

JBJF Management Pty Ltd

1,700,000

2,550,000

3,400,000

Mr Aharon Arakel & Mrs Ida Arakel

1,650,000

2,475,000

3,300,000

Howitt MGMT Pty Ltd

1,540,000

2,310,000

3,080,000

Others (less than 20%)

110,000

165,000

220,000

Total

5,000,000

7,500,000

10,000,000

Total holders

4

4

4

 

Unlisted Options

Unlisted Options exercisable
at $0.40

Unlisted Options exercisable
at $0.50

Unlisted Options exercisable
at $0.60

Unlisted Options exercisable
at $0.40

Unlisted Options exercisable
at $0.50

Unlisted Options
exercisable
at $0.60

Unlisted Options
exercisable
at $0.70

Holder

29-Apr-19

29-Apr-20

29-Apr-21

30-Jun-21

30-Jun-21

30-Jun-21

30-Jun-21

Hopetoun Consulting Pty Ltd

750,000

750,000

1,000,000

JJB Advisory Limited

250,000

350,000

500,000

Mr Sapan Ghai

100,000

150,000

250,000

Mr Hannes Huster

100,000

150,000

Others (less than 20%)

50,000

Total

750,000

750,000

1,000,000

250,000

500,000

750,000

400,000

Total holders

1

1

1

1

3

3

2

As at 31 August 2018, there are 5,400,000 Performance Rights issued under an employee incentive scheme.

6.     ON-MARKET BUYBACK 

There is currently no on-market buyback program for any of Salt Lake Potash Limited’s listed securities.

7.     EXPLORATION INTERESTS 

Summary of Exploration and Mining Tenements held as at 31 August 2018

Project

Status

License Number

Area       (km2)

Interest

 (%)

Western Australia

Lake Wells

Granted

E38/2710

192.2

100%

Granted

E38/2821

131.5

100%

Granted

E38/2824

198.2

100%

Granted

E38/3055

298.8

100%

Granted

E38/3056

3.0

100%

Granted

E38/3057

301.9

100%

Granted

E38/3124

39.0

100%

Granted

L38/262

113.0

100%

Granted

L38/263

28.6

100%

Granted

L38/264

32.6

100%

Granted

E38/3247

350.3

100%

Application

M38/1278

87.5

100%

Lake Way

Granted

E53/1878

217.0

100%

Application

E53/1897

77.5

100%

Lake Ballard

Granted

E29/912

607.0

100%

Granted

E29/913

73.2

100%

Granted

E29/958

30.0

100%

Granted

E29/1011

68.2

100%

Granted

E29/1020

9.3

100%

Granted

E29/1021

27.9

100%

Granted

E29/1022

43.4

100%

Lake Marmion

Granted

E29/1000

167.4

100%

Granted

E29/1001

204.6

100%

Granted

E29/1002

186.0

100%

Granted

E29/1005

68.2

100%

Lake Irwin

Granted

E37/1233

203.0

100%

Granted

E39/1892

203.0

100%

Granted

E38/3087

139.2

100%

Granted

E37/1261

107.3

100%

Granted

E38/3113

203.0

100%

Granted

E39/1955

118.9

100%

Granted

E37/1260

203.0

100%

Granted

E39/1956

110.2

100%

Lake Minigwal

Granted

E39/1893

246.2

100%

Granted

E39/1894

158.1

100%

Granted

E39/1962

369.0

100%

Granted

E39/1963

93.0

100%

Granted

E39/1964

99.0

100%

Granted

E39/1965

89.9

100%

Lake Noondie

Granted

E57/1062

217.0

100%

Granted

E57/1063

217.0

100%

Granted

E57/1064

55.8

100%

Granted

E57/1065

120.9

100%

Granted

E36/932

108.5

100%

Lake Barlee

Granted

E77/2441

173.6

100%

Granted

E30/495

217.0

100%

Granted

E30/496

217.0

100%

Lake Raeside

Granted

E37/1305

155.0

100%

Lake Austin

Application

E21/205

117.8

100%

Application

E21/206

192.2

100%

Application

E58/529

213.9

100%

Application

E58/530

217.0

100%

Application

E58/531

96.1

100%

Lake Moore

Application

E59/2340

217.0

100%

Application

E59/2341

217.0

100%

Application

E59/2342

217.0

100%

Application

E59/2343

201.5

100%

Application

E59/2344

217.0

100%

Application

E70/5195

124.0

100%

Northern Territory

Lake Lewis

Granted

EL 29787

146.4

100%

Granted

EL 29903

125.1

100%

8.     MINERAL RESOURCES STATEMENT 

Salt Lake’s Mineral Resource Statement as at 30 June 2018 is grouped by deposit, all of which form part of the Lake Wells SOP in Western Australia. To date, no Ore Reserves have been reported for these deposits. Subsequent to 30 June 2018, the Company reported a Mineral Resource Estimate for Lake Way.  The Lake Way Mineral Resource does not form part of this statement.

Governance

The Company engages external consultants and Competent Persons (as determined pursuant to the JORC Code 2012) to prepare and estimate the Mineral Resources. Management and the Board review these estimates and underlying assumptions for reasonableness and accuracy. The results of the Mineral Resource estimates are then reported in accordance with the requirements of the JORC Code 2012 and other applicable rules (including ASX Listing Rules).

Where material changes occur during the year to the project, including the project’s size, title, exploration results or other technical information, previous resource estimates and market disclosures are reviewed for completeness.

The Company reviews its Mineral Resources as at 30 June each year. A revised Mineral Resource estimate will be prepared as part of the annual review process where a material change has occurred in the assumptions or data used in previously reported Mineral Resources. However, there are circumstances where this may not be possible (e.g. an ongoing drilling programme), in which case a revised Mineral Resource estimate will be prepared and reported as soon as practicable.

Results of Annual Review

In November 2015, the Company reported its maiden JORC Mineral Resource estimate for the Lake Wells Project, totalling 29 million tonnes (Mt) of Sulphate of Potash (SOP) with approximately 80% in the ‘Measured’ category with excellent brine chemistry of 4,009 mg/L Potassium (K), 19,175 mg/L (SO4). The resource was calculated only on the upper 16 metres of the Lake, with mineralisation remaining open at depth across most of the Lake.

In February 2016, an expanded Mineral Resource Estimate (MRE) was calculated at Lake Wells totalling 80-85 million tonnes of SOP. This represents an additional 51-56 Mt of Inferred Resource calculated in the strata below the previously reported shallow Resource of 29 Mt.

During the year ended 30 June 2018, the Company continued exploration and development activities for Lake Wells including surface aquifer characterisation (test pits and trenches), deep aquifer exploration, long term pump testing, evaporation pond trials and process testwork.

In addition, in March 2018, the Company released an initial estimate of Exploration Targets for eight of the nine lakes comprising the GSLP. The ninth lake, Lake Wells (as discussed above) already has a Mineral Resource reported in accordance with the JORC code.

The total “stored” Exploration Target for the GSLP is 290Mt – 458Mt of contained SOP, with an average SOP grade of 4.4 – 7.1kg/m3 (including Lake Wells’ Mineral Resource of 80-85Mt). On a “drainable” basis the total Exploration Target ranges from 26Mt – 153Mt of SOP.  The total playa area of the lakes is approximately 3,312km2. The potential quantity and grade of this Exploration Target is conceptual in nature. There has been insufficient exploration to estimate a Mineral Resource and it is uncertain if further exploration will result in the estimation of a Mineral Resource.

As a result of the annual review of the Company’s Mineral Resources, there has been no change to the Mineral Resources reported for the Lake Wells Project in February 2016 as at 30 June 2018.

Total Mineral Resource Estimate

Classification

Geological Unit

Bulk Volume

(Million m3)

Porosity

Brine Volume

(Million m3)

Average SOP1(K2SO4) Concentration (kg/m3)

K2SO4Tonnage

(Mt)

Measured

Playa Lake Sediments

5,427

0.464

2,518

8.94

23

Indicated

Playa Lake Sediments

775

0.464

359

8.49

3

Inferred

Playa Lake Sediments (Islands)

1,204

0.464

558

5.34

3

Inferred

Paleovalley Sediment

10,600

0.40

4,240

9.07

38

Inferred

Fractured Siltstone Aquifer

6,717

0.22-.30

1,478 – 2,015

8.79

13-18

Competent Person Statement – Mineral Resource Statement

The information in this Mineral Resource Statement that relates to Mineral Resources is based on, and fairly represents, information compiled by Mr Ben Jeuken, a Competent Person, who is a member Australian Institute of Mining and Metallurgy. Mr Jeuken is employed by Groundwater Science Pty Ltd, an independent consulting company. Mr Jeuken has sufficient experience, which is relevant to the style of mineralisation and type of deposit under consideration and to the activity, which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’.

Mr Jeuken has approved the Mineral Resource Statement as a whole and consents to its inclusion in the form and context in which it appears. 

9.       COMPETENT PERSONS STATEMENTS

The information in this report that relates to the Lake Way Mineral Resource is extracted from the report entitled ‘Scoping Study for Low Capex, High Margin Demonstration Plant at Lake Way’ dated 31 July 2018. This announcement is available to view on www.saltlakepotash.com.au. The information in the original ASX Announcement that related to Mineral Resources was based on, and fairly represents, information compiled by Mr Ben Jeuken, who is a member Australian Institute of Mining and Metallurgy and a member of the International Association of Hydrogeologists. Mr Jeuken is employed by Groundwater Science Pty Ltd, an independent consulting company. Mr Jeuken has sufficient experience, which is relevant to the style of mineralisation and type of deposit under consideration and to the activity, which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Salt Lake Potash Limited confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement and, in the case of estimates of Mineral Resources, that all material assumptions and technical parameters underpinning the estimates in the relevant market announcement continue to apply and have not materially changed. Salt Lake Potash Limited confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement. 

The information in this report that relates to the Lake Wells Mineral Resource is extracted from the reports entitled ‘Lake Wells Resource Increased by 193% to 85Mt of SOP’ dated 22 February 2016 and ‘Significant Maiden SOP Resource of 29Mt at Lake Wells’ dated 11 November 2015. These announcements are available to view on www.saltlakepotash.com.au. The information in the original ASX Announcements that related to Mineral Resources was based on, and fairly represents, information compiled by Mr Ben Jeuken, who is a member Australian Institute of Mining and Metallurgy and a member of the International Association of Hydrogeologists. Mr Jeuken is employed by Groundwater Science Pty Ltd, an independent consulting company. Mr Jeuken has sufficient experience, which is relevant to the style of mineralisation and type of deposit under consideration and to the activity, which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Salt Lake Potash Limited confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement and, in the case of estimates of Mineral Resources, that all material assumptions and technical parameters underpinning the estimates in the relevant market announcement continue to apply and have not materially changed. Salt Lake Potash Limited confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement. 

The information in this report that relates to Exploration Targets is extracted from the report entitled ‘Exploration Targets Reveal World Class Scale Potential’ dated 28 March 2018 The information in the original ASX Announcement that related to Exploration Targets or Mineral Resources is based on information compiled by Mr Ben Jeuken, who is a member Australian Institute of Mining and Metallurgy. Mr Jeuken is employed by Groundwater Science Pty Ltd, an independent consulting company. Mr Jeuken has sufficient experience, which is relevant to the style of mineralisation and type of deposit under consideration and to the activity, which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr Jeuken consents to the inclusion in the report of the matters based on his information in the form and context in which it appears. The Company confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement. The Company confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement.

 

10.     PRODUCTION TARGET 

The Lake Way Demonstration Plant Production Target stated in this report is based on the Company’s Scoping Study as released to the ASX on 31 July 2018. The information in relation to the Production Target that the Company is required to include in a public report in accordance with ASX Listing Rule 5.16 and 5.17 was included in the Company’s ASX Announcement released on 31 July 2018. The Company confirms that the material assumptions underpinning the Production Target referenced in the 31 July 2018 release continue to apply and have not materially changed.

The Lake Wells Production Target stated in this report is based on the Company’s Scoping Study as released to the ASX on 29 August 2016. The information in relation to the Production Target that the Company is required to include in a public report in accordance with ASX Listing Rule 5.16 and 5.17 was included in the Company’s ASX Announcement released on 29 August 2016. The Company confirms that the material assumptions underpinning the Production Target referenced in the 29 August 2016 release continue to apply and have not materially changed.

 

11.     FORWARD LOOKING STATEMENTS

This report contains ‘forward-looking information’ that is based on the Company’s expectations, estimates and projections as of the date on which the statements were made. This forward-looking information includes, among other things, statements with respect to pre-feasibility and definitive feasibility studies, the Company’s business strategy, plans, development, objectives, performance, outlook, growth, cash flow, projections, targets and expectations, mineral reserves and resources, results of exploration and related expenses. Generally, this forward-looking information can be identified by the use of forward-looking terminology such as ‘outlook’, ‘anticipate’, ‘project’, ‘target’, ‘potential’, ‘likely’, ‘believe’, ‘estimate’, ‘expect’, ‘intend’, ‘may’, ‘would’, ‘could’, ‘should’, ‘scheduled’, ‘will’, ‘plan’, ‘forecast’, ‘evolve’ and similar expressions. Persons reading this news release are cautioned that such statements are only predictions, and that the Company’s actual future results or performance may be materially different. Forward-looking information is subject to known and unknown risks, uncertainties and other factors that may cause the Company’s actual results, level of activity, performance or achievements to be materially different from those expressed or implied by such forward-looking information. Forward-looking information is developed based on assumptions about such risks, uncertainties and other factors set out herein, including but not limited to the risk factors set out in Schedule 2 of the Company’s Notice of General Meeting and Explanatory Memorandum dated 8 May 2015.

 

The full version of the 2018 Annual Report is available on the Company’s website at www.saltlakepotash.com.au

Salt Lake Potash #SO4 & Australian Potash ASX: #APC to Study Benefits of Cost Sharing at Lake Wells

Salt Lake Potash#SO4 & Australian Potash ASX: #APC to Study Benefits of Cost Sharing at Lake Wells

Highlights:

  • Salt Lake Potash Limited (ASX/AIM: SO4) and Australian Potash Limited (ASX: APC) have entered into a Memorandum of Understanding and Co-operation Agreement to study the potentially very substantial benefits of sharing infrastructure and other costs at Lake Wells
  • The Companies will conduct a joint study into the merits of developing aspects of their respective Lake Wells projects together (the ‘Study’)
  • The Study will initially focus on a shared costs model around infrastructure developments
  • The Study will also address at a high-level the potential for cost sharing on common evaporation and salt processing developments
  • Both Companies’ projects at Lake Wells will proceed independently in parallel with the Study with no impact on either Company’s timelines

Salt Lake Potash Limited (ASX/AIM: SO4) and Australian Potash Limited (ASX: APC) are pleased to advise that the Companies have entered into a Memorandum of Understanding and Co-operation Agreement to undertake a joint study of the potential benefits of development cost sharing for each Company’s project developments at Lake Wells.

The Companies’ substantial project holdings at Lake Wells are contiguous with many common infrastructure elements, including access roads, proximity to the Leonora rail terminals, and potential power and fresh water solutions. Both Companies anticipate substantial potential Capex and Opex benefits from some level of infrastructure sharing, with further potential benefits arising from shared or common evaporation and salt processing facilities.

A paleochannel extending in excess of 140 kilometres traverses the Companies combined tenement holding over Lake Wells. Recently both APC and SO4 have been granted initial Mining Leases over their respective projects at Lake Wells.

APC’s scoping study released in March 2017 indicated a staged development producing 150,000 tpa rising to 300,000 tpai of premium grade Sulphate of Potash (SOP) from its stand-alone development. APC has a 2012 JORC Mineral Resource Estimate (calculated from drainable porosity) of 14.7 Mti of SOP (derived from a total of 72 Mt contained in total porosity).

SO4’s scoping study released in August 2016 indicated a staged development producing 200,000 tpa rising to 400,000 tpa on a fully ramped basis. SO4 has reported a total JORC Mineral Resource at Lake Wells of 80-85 Mt of SOP (Stored Resource).

Logistics and Infrastructure

Each Company’s project is based on heavy haulage road transport from Lake Wells to the rail head at either Malcolm (280kms) or Leonora (300kms), utilising the same haulage route. There is compelling logic in pursuing the economies of scale inherent in a (larger) shared solution as well as sharing the capital costs for road upgrades, haulage equipment and other transport and handling facilities. There is similar synergy potential in shared power, air transport, accommodation and process water costs.

Both projects have very similar brine chemistry given they are essentially hosted on the same paleochannel. Naturally they will also experience the same climatic conditions, meaning the process flowsheets for each project should be very similar. This offers the opportunity for potential additional savings by a co-operative arrangement extending to evaporation and salt processing facilities.

The Companies have agreed to constitute a joint study team to carry out an initial assessment of the merits of infrastructure cooperation. The team will also conduct a high-level review of potential benefits of upstream operational synergies. A substantial part of the Study work will be outsourced to independent engineers and both Companies intend to continue with their independent project developments in parallel with the Study.

Follow Salt Lake Potash on Twitter @LakePotash

For further information please visit www.saltlakepotash.com.au or contact:

Matt Syme/Clint McGhie

Salt Lake Potash Limited

Tel: +61 8 9322 6322

Jo Battershill

Salt Lake Potash Limited

Tel: +44 (0) 20 7478 3900

Colin Aaronson/Richard Tonthat/Ben Roberts

Grant Thornton UK LLP (Nominated Adviser)

Tel: +44 (0) 20 7383 5100

Derrick Lee/Beth McKiernan

Cenkos Securities plc (Joint Broker)

Tel: +44 (0) 131 220 6939

Jerry Keen/Toby Gibbs

 

Shore Capital (Joint broker)

Tel: +44 (0) 20 7468 7967

 

 

Competent Person Statements

The information in this Announcement that relates to APC’s Exploration Targets and Mineral Resources is based on information that was compiled by Mr Duncan Gareth Storey.  Mr Storey is a Director and Consulting Hydrogeologist with AQ2, a firm that provides consulting services to the Company.  Neither Mr Storey nor AQ2 own either directly or indirectly any securities in the issued capital of the Company.  Mr Storey has 30 years of international experience. He is a Chartered Geologist with, and Fellow of, the Geological Society of London (a Recognised Professional Organisation under the JORC Code 2012).  My Storey has experience in the assessment and development of paleochannel aquifers, including the development of hypersaline brines in Western Australia. His experience and expertise are such that he qualifies as a Competent Person as defined in the 2012 edition of the “Australian Code for Reporting of Exploration Results, Mineral Resources and Ore reserves”.  Mr Storey consents to the inclusion in this report of the matters based on this information in the form and context as it appears.

The information in this Announcement that relates to Salt Lake Potash Limited’s Mineral Resources is extracted from the reports entitled ‘Lake Wells Resource Increased by 193% to 85Mt of SOP’ dated 22 February 2016 and ‘Significant Maiden SOP Resource of 29Mt at Lake Wells’ dated 11 November 2015. These announcements are available to view on www.saltlakepotash.com.au. The information in the original ASX Announcements that related to Mineral Resources was based on, and fairly represents, information compiled by Mr Ben Jeuken, who is a member Australian Institute of Mining and Metallurgy and a member of the International Association of Hydrogeologists. Mr Jeuken is employed by Groundwater Science Pty Ltd, an independent consulting company. Mr Jeuken has sufficient experience, which is relevant to the style of mineralisation and type of deposit under consideration and to the activity, which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Salt Lake Potash Limited confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement and, in the case of estimates of Mineral Resources, that all material assumptions and technical parameters underpinning the estimates in the relevant market announcement continue to apply and have not materially changed. Salt Lake Potash Limited confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement.

The information in this Announcement that relates to Salt Lake Potash Limited’s Lake Wells Scoping Study is extracted from the report entitled ‘Scoping Study Confirms Potential Confirms Lake Wells Potential’ dated 29 August 2016. The Announcement is available to view on www.saltlakepotash.com.au. The information in the original announcement that relates to processing, infrastructure and cost estimation are based on and fairly represents information compiled or reviewed by Mr Zeyad El-Ansary, who is a Competent Person as a member of the Australasian Institute of Mining and Metallurgy.  Mr Zeyad El-Ansary has 9 years’ experience relevant to the activities undertaken for preparation of these report sections and is a employed by Amec Foster Wheeler. Mr Zeyad El-Ansary consents to the inclusion in the report/press release of the matters based on their information in the form and context in which it appears. Salt Lake Potash Limited confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement. Salt Lake Potash Limited confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement.

Production Target

Australian Potash Limited’s Lake Wells SOP Project’s Production Target, as stated in this Announcement is based on the it’s Scoping Study as released in the ASX announcement of 23 March 2017 ‘Scoping Study Confirms Exceptional Economics of APC’s 100% Owned Lake Wells Potash Project In WA’. That announcement contains the relevant statements, data and consents referred to in this announcement. Apart from that which is disclosed in this document, Australian Potash Limited, its directors, officers and agents: 1. Are not aware of any new information that materially affects the information contained in the 23 March 2017 announcement, and 2. State that the material assumptions and technical parameters underpinning the estimates in the 23 March 2017 announcement continue to apply and have not materially changed.

Salt Lake Potash Limited’s Lake Wells Production Target stated in this Announcement is based on it’s Scoping Study as released to the ASX on 29 August 2016. The information in relation to the Production Target that Salt Lake Potash Limited is required to include in a public report in accordance with ASX Listing Rule 5.16 and 5.17 was included in its ASX Announcement released on 29 August 2016. Salt Lake Potash Limited confirms that the material assumptions underpinning the Production Target referenced in the 29 August 2016 release continue to apply and have not materially changed.

Note

i Refer to ASX announcement 23 March 2017 ‘Scoping Study Confirms Exceptional Economics of APC’s 100% Owned Lake Wells Potash Project In WA’. That announcement contains the relevant statements, data and consents referred to in this announcement. Apart from that which is disclosed in this document, Australian Potash Limited, its directors, officers and agents: 1. Are not aware of any new information that materially affects the information contained in the 23 March 2017 announcement, and 2. State that the material assumptions and technical parameters underpinning the estimates in the 23 March 2017 announcement continue to apply and have not materially changed.

The Companies will conduct a joint study into the merits of developing aspects of their respective Lake Wells projects together (the ‘Study’) The Study will initially focus on a shared costs model around infrastructure developments

Stockhead – Potash stock guide: how the Pilbara could help feed the world

The Pilbara region of Western Australia is best known for iron ore — and in more recent times goldand lithium.

But a group of pioneering ASX companies reckon it also has the potential to be a major hub for potash — a mineral salt that’s critical in plant, animal and human life.

There are some 30 ASX-listed companies active in potash, but it is not a well-understood industry.

Over the past year, 16 of 28 potash-related stocks tracked by Stockhead have made gains of 4 per cent to 263 per cent.

Potash comes from salts that contain potassium in water soluble form. It is used as a fertiliser.

There are two commonly used fertilisers – muriate of potash (MOP) and sulphate of potash (SOP).

MOP is the most common (around 90 per cent of the world’s potash) and is used on a variety of crops. However, the more chloride-sensitive crops like avocados, coffee beans and cocoa require SOP – which fetches $US270 per tonne more than MOP.

The global potash market is estimated to be around 75 million tonnes.

Demand is set to increase as the global population grows to around 8 billion by 2023.

Greg Cochran, the boss of Pilbara potash explorer Reward Minerals (ASX:RWD) told Stockhead an extra 100,000 to 150,000 tonnes of potash will be required each year.

Right now Australia imports all its potash from Canada, the Middle East and Europe. Australia’s MOP and SOP consumption is around 250,000 tonnes each year.

China and big plantation-focused countries in southeast Asia – like Malaysia and Indonesia – are expected to be the key contributors to demand growth.

The potash market is perhaps one of the most stable compared to other commodities, with the price difference between MOP and SOP remaining close to $US270 per tonne for the past three years.

Pilbara could rival world’s largest potash exporter 

Reward Minerals' Lake Disappointment sulphate of potash project.

Reward believes the Pilbara could become the next Saskatchewan – a region in Canada that is currently the world’s largest exporter of potash.

Canada produced 12 million tonnes of potash last year and the bulk of that came from Saskatchewan.

Mr Cochran said director Michael Ruane saw the potential of the Pilbara early on.

“Mick saw it first, where he said: ‘this has the potential to be the next Saskatchewan’,” Mr Cochran said.

“That’s the potash potential of this broader region in which we operate up here [the Pilbara], and with the climatic conditions it’s ideal and it’s a lot closer than Saskatchewan is to Vancouver.”

Saskatchewan is nearly 1700km from Vancouver.

By comparison, Reward’s Lake Disappointment project is less than 900km from Port Hedland – which is where the company is planning to ship its SOP product from.

“I’m not talking just about Lake Disappointment, but other projects further inland, and we’ve got some really good insights into the geological potential that we as a company have learnt over the last 12 years,” Mr Cochran said.

“In fact, when we talk to government ministers that’s part of the conversation. There’s a dream there, this vision is big.”

A recent pre-feasibility study indicated Reward’s Lake Disappointment project will produce 9 million tonnes of SOP over a 27-year life.

One of the evaporation ponds at Reward Minerals' Lake Disappointment project.

Reward says it will be one of the world’s largest and longest-life brine SOP projects.

The who’s who of potash

Australia does not currently produce any of its own potash, but the bulk of the production will eventually come from WA.

Kalium Lakes (ASX:KLL) this week announced it has increased the measured and indicated resources for its flagship Beyondie SOP project in WA by 150 per cent.

This is expected to translate into a “substantial increase” in ore reserves, which is also due for an update this month, managing director Brett Hazelden told investors earlier this week.

Kalium’s share price has jumped 31 per cent to 46.5c since this time last year.

The Beyondie project currently has enough in reserves to mine 75,000 tonnes each year for more than 23 years.

Kalium is the closest to production, having already been granted the necessary mining licence and received approval for its mining proposal and mine closure plan.

The company expects to be able to start early construction works this year.

Kalium is also in a joint venture with BCI Minerals (ASX:BCI) on the Carnegie potash project, which is located about 220km east-north-east of Wiluna.

BCI diversified into salt, SOP and gold following the steep drop in iron ore price.

The company, which was once known as BC Iron, has witnessed a 15.6 per cent drop in its share price over the past year and is trading around 13.5c.

BCI is now selling off its Pilbara iron ore projects after it sunk to a $16.9 million loss in FY18.

The company can earn up to a 50 per cent interest in the Carnegie project by sole-funding exploration and development expenditure across several stages.

The Carnegie project lies directly north of Salt Lake Potash’s (ASX:SO4) Lake Wells project and Australian Potash’s (ASX:APC) project, which is also named Lake Wells.

Salt Lake also has another project near Wiluna called Lake Way.

Link here for full Stockhead article

From MiningNews.net – Salt Lake #SO4 promotes Lake Way demonstration numbers

Salt Lake promotes Lake Way demonstration numbers

SALT Lake Potash has outlined a demonstration-style development in Western Australia that could cost A$50 million to build and be capable of yielding 50,000 tonnes per product selling for about $667 per tonne at a cost of $387/t FOB.

Notionally at least, such a margin would generate annual cashflow at an operational level of $14 million per annum.

The demonstration project at Lake Way is based on previously mined gold open pits at Lake Way near Wiluna containing super-saturated brine, and is intended to validate the technical and commercial viability of large scale brine SOP production of 400,000 tonnes per annum.

Salt Lake Potash believes a full scale project development – at Lake Wells, east of Wiluna – could produce at operating costs of $185/t FOB.

Assuming positive feasibility work Salt Lake Potash’s objective is to produce initial harvest salts in mid-late 2019 for initial SOP production in early 2020, subject to permitting, weather and other parameters.

Link here to read the full article

Salt Lake Potash #SO4 – Notice of GM

Salt Lake Potash Limited #SO4 wishes to advise that a General Meeting of the Company will be held at the Conference Room, Ground Floor, BGC Centre, 28 The Esplanade, Perth, Western Australia on Monday 11 June 2018 at 10:00am (WST).

The business of the meeting will be to approve the adoption of a new Company Constitution and seek approval to vary the terms of existing Performance Rights and Performance Shares.

The Company’s primary focus is to construct a Demonstration Plant, before expanding to full-scale production at the Goldfields Salt Lakes Project (GSLP), intended to be the first salt-lake brine SOP production operation in Australia.

The Company has selected GSLP’s lakes for scale and potential brine volume, known hypersaline brine characteristics, potential for both shallow trench extraction and from deeper paleochannel aquifer bores, large playa surface for cost-effective evaporation pond construction and proximity to the important transport and energy infrastructure and engineering expertise available in the Western Australian Goldfields. While proceeding with pre-feasibility study technical work for Lake Wells, the Company has also completed initial work across all of the other regional lakes in the GSLP.

As a result of the Company’s work on regional lakes, the Company identified an opportunity at Lake Way. This lead to the Company executing a Memorandum of Understanding (MOU) with Blackham Resources Limited (Blackham) to investigate the potential development of a SOP operation based at Lake Way, near Wiluna.

The strategic decision to shift focus to Lake Way resulted in the Company’s resources being focused on Lake Way. The Directors of the Company believe that of participants of the Performance Rights Plan and the Vendors should be not be directly affected by decision of the Company to shift to Lake Way and seek approval for an extension on the pre-feasibility study and definitive feasibility study milestones by six months.

Equally, the proposed variations will ensure that the Company can explore and exploit the valuable commercial opportunity under the MOU, without the additional burden of attempting to complete the pre-feasibility study and definitive feasibility study before the original expiry dates.

The Company is also proposing to adopt the new Company Constitution to reflect changes to the Australian Corporations Act, the ASX Listing Rules and other regulatory requirements since the Company adopted its current Constitution in 2006.

The Notice of General Meeting was sent to shareholders today and is available for download on the Company’s website: www.saltlakepotash.com.au 

For further information please visit www.saltlakepotash.com.au or contact:

Matt Syme/Sam Cordin

Salt Lake Potash Limited

Tel: +61 8 9322 6322

Jo Battershill

Salt Lake Potash Limited

Tel: +44 (0) 20 7478 3900

Colin Aaronson/Richard Tonthat

Grant Thornton UK LLP (Nominated Adviser)

Tel: +44 (0) 20 7383 5100

Derrick Lee/Beth McKiernan

Cenkos Securities plc (Joint Broker)

Tel: +44 (0) 131 220 6939

Jerry Keen/Toby Gibbs

 

Shore Capital (Joint broker)

Tel: +44 (0) 20 7468 7967

Salt Lake Potash #SO4 announces March 2018 Quarterly Report

The Board of Salt Lake Potash Limited (the Company or SLP) is pleased to present its Quarterly Report for the period ending 31 March 2018.

The Company’s primary focus is to construct a Demonstration Plant at the Goldfields Salt Lakes Project (GSLP), intended to be the first salt-lake brine Sulphate of Potash (SOP) production operation in Australia.

Highlights for the quarter and subsequently include:

LAKE WAY

MOU with Blackham Resources to access Lake Way

Ø The Company entered into a Memorandum of Understanding (MOU) with Blackham Resources Limited (Blackham) to investigate the potential development of a SOP operation based at Lake Way, near Wiluna.

Surface Sampling Program

Ø A preliminary surface sampling program on Blackham’s tenements confirms the average SOP grade of over 14kg/m3, making Lake Way one of Australia’s highest grade SOP brine sources.

Geotechnical Investigations

Ø An initial geological and geotechnical investigation by the Company and Knight Piesold confirmed the availability of in-situ clays amendable for on-lake evaporation pond construction. A total of 24 auger holes were excavated across Blackham’s tenements and laboratory tested.

Surface Aquifer Exploration

Ø Review and modelling of the large volume of historical exploration data for Lake Way confirms the likelihood of a large hypersaline brine pool on both Blackham and SLP’s tenements.

Ø The Company is in the process of mobilising a drill rig and an amphibious excavator on the Lake to complete an initial surface aquifer exploration program.

Ø The surface aquifer program will include the construction of test pits and trenches for long-term pump testing.

Process Testwork

Ø The Company has commenced a range of process development testwork including process pathway modelling by international experts, a bulk sample evaporation trial and site-based evaporation trial at Lake Way. 

 

First MOU for an Offtake Agreement with Mitsubishi

Ø The Company executed its first MOU for an Offtake Agreement with Mitsubishi, for the sales and offtake rights for up to 50% of the SOP production, from a Demonstration Plant at the GSLP, for distribution into Asia and Oceania and potentially other markets. 

LAKE WELLS

Process Testwork

Ø  The Saskatchewan Research Council (SRC) completed locked cycle testwork utilising 1T of harvest salts from Lake Wells SET to produce 400kg of flotation concentrate. The flotation concentrate is scheduled for crystalliser design testwork in the USA.

Ø  The Site Evaporation Trial (SET) at Lake Wells was decommissioned after completing over 18 months of operation under site conditions and through all seasons. The SET processed approximately 412 tonnes of brine and produced over 10 tonnes of harvest salts.

LAKE IRWIN

Ø  A surface aquifer exploration program was continued at Lake Irwin, with additional 29 shallow test pits and 2 test trenches. This work provides preliminary data for the geological and hydrological models of the surface aquifer of the Lake, as well as brine, geological and geotechnical samples. 

GSLP’s World Class Scale Revealed with an Initial Exploration Target Estimation

The Company released an initial estimate of Exploration Targets for eight of the nine lakes comprising the Company’s GSLP. The ninth lake, Lake Wells, already having a Mineral Resource reported in accordance with the JORC code.

The total “stored” Exploration Target for the GSLP is 290Mt – 458Mt of contained Sulphate of Potash (SOP) with an average SOP grade of 4.4 – 7.1kg/m3 (including Lake Wells’ Mineral Resource of 80-85Mt). On a “drainable” basis the total Exploration Target ranges from 26Mt – 153Mt of SOP. The total playa area of the lakes is approximately 3,312km2.

The potential quantity and grade of this Exploration Target is conceptual in nature. There has been insufficient exploration to estimate a Mineral Resource and it is uncertain if further exploration will result in the estimation of a Mineral Resource.

The Company’s long term plan is to develop an integrated SOP operation, producing from a number (or all) of the lakes within the GSLP, after confirming the technical and commercial elements of the Project through construction and operation of a Demonstration Plant producing up to 50,000tpa of SOP.

The Company’s recent Memorandum of Understanding with Blackham Resources Limited (see ASX Announcement dated 12 March 2018) offers the potential for an expedited path to development at Lake Way, possibly the best site for a 50,000tpa Demonstration Plant in Australia.

The GSLP has a number of very important, favourable characteristics:

Ø  Very large paleochannel hosted brine aquifers, with chemistry amenable to evaporation of salts for SOP production, extractable from both  low cost trenches and deeper bores;

Ø  Over 3,300km2 of playa surface, with in-situ clays suitable for low cost on-lake pond construction;

Ø  Excellent evaporation conditions;

Ø  Excellent access to transport, energy and other infrastructure in the major Goldfields mining district;

Ø  Lowest quartile capex and opex potential based on the Lake Wells Scoping Study;

Ø  Clear opportunity to reduce transport costs by developing lakes closer to infrastructure and by capturing economies of scale;

Ø  Multi-lake production offers operational flexibility and protection from localised weather events;

Ø  The very high level of technical validation already undertaken at Lake Wells substantially applies to the other lakes in the GSLP; and

Ø  Potential co-product revenues, particularly where transport costs are lowest.

Salt Lake Potash will progressively explore the lakes in the portfolio with a view to estimating resources for each Lake, in parallel with the development of the Demonstration Plant. Exploration of the lakes will be prioritised based on likely transport costs, scale, permitting pathway and brine chemistry.

LAKE WAY

Lake Way is located in the Goldfields region of Western Australia, less than 15km south of Wiluna. The surface area of the Lake is over 270km2.

The Wiluna region is an historic mining precinct dating back to the late 19th century. It has been a prolific nickel and gold mining region and therefore has well developed, high quality infrastructure in place.

The Goldfields Highway is a high quality sealed road permitted to carry quad road trains and passes 2km from the Lake. The Goldfields Gas Pipeline is adjacent to SLP’s tenements, running past the eastern side of the Lake.

SLP has entered an MOU with Blackham to investigate the development of an SOP operation on Blackham’s existing Mining Leases at Lake Way, including initially a 50,000tpa Demonstration Plant (see announcement dated 12 March 2018).

Lake Way has some compelling advantages which make it potentially an ideal site for an SOP operation, including:

Ø  Substantial likely capital and operating savings from sharing overheads and infrastructure with the Wiluna Gold Mine, including the accommodation camp, flights, power, maintenance, infrastructure and other costs.

Ø  The site has an excellent freight solution, adjacent to the Goldfields Highway, which is permitted for heavy haulage 4 trailer road trains to the railhead at Leonora.

Ø  A Demonstration Plant would likely be built on Blackham’s existing Mining Licences, already subject of a Native Title Agreement.

Ø  SLP would dewater the existing Williamson Pit on Lake Way, prior to Blackham mining, planned for early 2019. The pit contains an estimated 1.2GL of brine at the exceptional grade of 25kg/m3 of SOP. This brine is potentially the ideal starter feed for evaporation ponds, having already evaporated from the normal Lake Way brine grade, which averages over 14kg/m3.

Ø  The high grade brines at Lake Way will result in lower capital and operating costs due to lower extraction and evaporation requirements.

Ø  There would be substantial savings to both parties from co-operating on exploration activities on each other’s ground.

Ø  The presence of clays in the upper levels of the lake which should be amenable to low cost, on-lake evaporation pond construction.

SLP will complete a Scoping Study for a potential SOP operation at Lake Way, including a Demonstration Plant, by mid-2018, in time to allow a decision on dewatering the Williamson Pit. There is substantial historical data available for Lake Way and, along with the extensive, high quality technical work undertaken at SLP’s other lakes, which has substantial application at Lake Way, a Scoping Study can be undertaken in a much shorter timeframe than would normally be the case.

Surface Sampling Program

The Company has now completed initial surface sampling program at Lake Way, substantially covering the Lake surface. A total of 23 pit samples have been collected encountering brine at a standing water level generally less than 1 metre from surface.

The average brine chemistry of the samples was: 

Total
Samples

K

Mg

SO4

TDS

SOP*
Equivalent

Program

Location

(mg/L)

(mg/L)

(mg/L)

(mg/L)

(kg/m3)

March 2018

Blackham

15

6,447

6,680

25,613

231,000

14.38

November 2017

SLP

8

6,859

7,734

25,900

243,000

15.25

* Conversion factor of K to SOP (K2SO4 equivalent) is 2.23

[1] Previously reported in ASX release dated 12/12/2017

The brine chemistry at Lake Way is very consistent over the lake surface. The SOP grades are amongst the highest achieved in Australia to date.

Geotechnical Investigations

To gain an understanding of ground conditions for trenching and pond construction, a preliminary geotechnical investigation program was undertaken within the Blackham Mining Tenements, in conjunction with leading international geotechnical consultants, Knight Piesold. 

A total of 24 hand auger boreholes were drilled to depths of up to 3.2 metres, and the encountered soils were logged and sampled.

Lake Way ground conditions consists of a thin surface layer of evaporite sands, overlying sandy and silty clays. Firm clays were encountered at 1m to 2m depth, generally increasing in strength with depth, becoming hard from 2m to 3m. Shallow groundwater was encountered on average 0.2m below the lake surface.

A testing program was undertaken at a NATA accredited geotechnical laboratory, using specific test methods appropriate for saline conditions, to characterise soils and assess preliminary soil parameters.  

Summary test results are presented below.

Particle Size Distribution Analysis

Sample Number

Lithological Unit

Clay and Silt

Sand and Gravel

601

Mixed soils above 1.5m

26%

74%

602

Clay 1.2m to 2.25m depth

71%

29%

603

Mixed soils above 1.5m

47%

53%

604

Mixed soils above 1.5m

47%

53%

Table 2: Particle Size Distribution Analysis

 

Hydrometer Analysis

Sample Number

Lithological Unit

Clay

Silt

Sand

600

Mixed soils above 1.8m

58%

20%

22%

605

Mixed soils above 0.5m

29%

30%

41%

606

Mixed soils above 1.8m

28%

27%

45%

Table 3: Hydrometer Analysis

 

Properties of Upper Clays

Remoulded Permeability (m/s)

5×10-10

Maximum Dry Density (t/m3)

1.75

Optimum Water Content (%)

18

Cohesion c’ (kPa)

1

Angle of Shear Resistance ф ‘ (Deg)

37

Table 4: Properties of Upper Clays

Erodibility characteristics were tested and an Emerson class number of 6 was measured for all samples. This indicates non-dispersive soils that are not prone to erosion when used to form embankments.

Based on the preliminary geotechnical work to date, Knight Piesold have concluded that:

–     the in-situ clay materials can be expected to provide natural low permeability layers to control seepage of on-lake ponds.

–     the clays are suitable for embankment construction purposes, with adequate moisture control and borrow pit dewatering.

–     A key advantage of Lake Way is the presence of a drier clay zone surrounding the Williamson Pit, which has the potential to provide borrow materials and construction schedule benefits for the upcoming pond construction programs.

Knight Piesold is now preparing an options study to evaluate design concepts for large-scale pond systems and provide earthworks quantities and costs. Seepage assessments and flood studies are underway. In parallel, design work is being undertaken for a dewatering pond to hold the Williamson Pit brine.

Surface Aquifer Characterisation

Lake Way and its surrounds have been the subject of a substantial amount of historical exploration for gold, nickel, uranium and other minerals, as well as for process water for mining operations. A total of over 2,800 holes have been drilled in and around the Lake previously, providing a very large database of geotechnical information.

SLP have commenced compiling, digitising and interpreting the historical exploration database to extract relevant data and provide initial basement geometry for the Lake area, to assist estimation of an initial JORC compliant resource.

The Company is also in the process of mobilising a small track-mounted drill rig and an amphibious excavator to complete an initial surface aquifer exploration program. This work will provide critical data for the hydrogeological model for the surface aquifer of the Lake, as well as geological and geotechnical information for infrastructure design and construction.

The surface aquifer program will include the construction of test pits and trenches for long-term pump testing. 

The drill campaign is also intended to sterilise (for gold exploration) sufficient areas for siting brine extraction trenches and evaporation ponds.

 

Process Testwork

The Company has commenced a range of process development testwork to provide and validate inputs to the Lake Way Scoping Study production model. Naturally, this includes testing brines from the Lake itself, as well as the super-concentrated brines from the Williamson Pit.

The testwork aims to confirm the modelled brine evaporation pathways firstly under laboratory simulated conditions and then from a site-based trial of sufficient scale to test on-lake evaporation conditions.

Initial brine evaporation modelling, conducted by internationally renowned solar pond experts, Ad Infinitum, indicates the salts produced at Lake Way will be comparable to those produced at Lake Wells and therefore suitable for conversion into SOP. 

International laboratory and testing company, Bureau Veritas (BV), has commenced a series of laboratory-scale brine evaporation trials at their Perth facility, under simulated average Lake Way climate conditions. The aim of the BV trials is to monitor the chemical composition of the brine and salts produced through the evaporation process to confirm:

·        Concentration thresholds in the brine chemistry which can be used to maximise the recovery of potassium in the harvest salts and minimise the quantity of dilutive salts fed to a process plant;

·        The quantity and composition of harvest salts which will for the plant feed in commercial production; and

·        The potential for any internal evaporation pond recycle streams that may improve harvest salt recovery.

Two tests – one for Williamson Pit brine and one for normal Lake Way brine – are currently underway, each evaporating 150kg of brine on a load cell to monitor evaporative loss. The temperature of the brine and air flow across the brine surface is controlled by using infra-red lamps and fans to simulate Lake Way average weather conditions.

A Site Evaporation Trial (SET), as successfully operated at Lake Wells previously, is under construction at Lake Way and will be filled with first brine over the next week. The SET will gather specific evaporation data on concentrated brines under actual conditions, providing refinements to the commercial scale pond modelling.

The Site Evaporation Trial is also designed to produce sufficient harvest salt for confirmatory process testwork and initial customer samples.

 

GOLDFIELDS SALT LAKES PROJECT

MOU for Offtake with Mitsubishi

The Company executed a MOU for an Offtake Agreement with Mitsubishi for the sales and offtake rights for up to 50% of the SOP production from a Demonstration Plant at the GSLP, for distribution into Asia and Oceania and potentially other markets. 

Salt Lake Potash is progressing its GSLP development strategy, initially involving construction of a Demonstration Plant producing up to 50,000tpa of high quality SOP, with it plans to distribute production through a small number of global distribution partnerships.

The Mitsubishi MOU is non-binding and sets out the key terms for a subsequent formal Offtake Agreement as the Demonstration Plant is developed. As well as quantities and target markets, the MOU’s other terms include:

·     Market pricing and commission mechanisms;

·     Specifications and delivery parameters;

·     Mitsubishi to provide strategic advice on marketing within the region; and

·     The parties to continue discussions regarding funding requirements for the GSLP.

Mitsubishi Australia Limited is a wholly owned subsidiary of Mitsubishi Corporation. Mitsubishi is one of the world’s largest trading and investment enterprises that develops and operates businesses across virtually every industry, including industrial finance, energy, metals, machinery, chemicals, and daily living essentials. Its current activities expand far beyond its traditional trading operations to include investments and business management in diverse fields including natural resources development, manufacturing of industrial goods, retail, new energy, infrastructure, finance and new technology-related businesses.

Exploration Target

The Company completed an initial estimate of Exploration Targets for eight of the nine lakes comprising the Company’s GSLP. The ninth lake, Lake Wells, already having a Mineral Resource reported in accordance with the JORC code.

The total “stored” Exploration Target for the GSLP is 290Mt – 458Mt of contained Sulphate of Potash (SOP) with an average SOP grade of 4.4 – 7.1kg/m3 (including Lake Wells’ Mineral Resource of 80-85Mt). On a “drainable” basis the total Exploration Target ranges from 26Mt – 153Mt of SOP. The total playa area of the lakes is approximately 3,312km2.

The potential quantity and grade of this Exploration Target is conceptual in nature. There has been insufficient exploration to estimate a Mineral Resource and it is uncertain if further exploration will result in the estimation of a Mineral Resource.

Area

Average Grade (kg/m3)

Stored (Mt)

Drainable (Mt)

Lake

(km2)

SOP (min)

SOP (max)

SOP (min)

SOP (max)

SOP (min)

SOP (max)

Ballard

626

3.5

4.7

42

53

3.1

18

Barlee

350

1.9

4.3

10

21

0.8

8.1

Irwin

306

4.8

8.1

25

43

1.9

15

Marmion

339

3.0

5.1

20

34

1.6

11

Minigwal

567

3.8

8.3

45

98

3.4

31

Noondie

386

4.2

6.0

35

50

2.8

16

Raeside

89

2.1

7.0

6

20

0.4

5.4

Way

172

5.6

15.5

28

54

2.7

19

Wells

477

8.7

8.8

801

851

92

292

Total

3,312

4.4

7.1

290

458

26

153

1.     Incorporating Lake Wells’ stored Mineral Resource Estimate previously reported.

2.     Lake Wells Mineral stored Mineral Resource Estimate converted to drainable equivalent.

Table 5: GSLP Exploration Target

The combined resources and exploration targets in the GSLP comprise a globally significant Project in the SOP sector, potentially sustaining one of the world’s largest SOP production operations for many decades.

LAKE WELLS

Process Testwork 

The Company continues a range of process development testwork to enhance the Lake Wells process model.

 

Site Evaporation Trial

The large scale, continuous Site Evaporation Trial (SET) at Lake Wells successfully completed over 18 months of operation under site conditions and through all seasons, confirming the solar evaporation pathway for production of potassium rich harvest salts for processing into SOP. The SET was decommissioned after achieving its objective of refining process design criteria for the halite evaporation ponds and subsequent harvest salt ponds.

The SET processed approximately 412 tonnes of Lake Wells brine and produced 10.3 tonnes of harvest salts.

The results of the SET are Australian first and have provided significant knowledge to the Company on the salt crystallisation pathway under site conditions in Australia. 

Process Development

The Saskatchewan Research Council (SRC) completed a locked-cycle, continuous production test on 1T of harvest salt generated by the Lake Wells SET during the quarter. The aims of the test were to operate the proposed pre-crystallisation portion of the GSLP Flowsheet on a continuous basis, over a number of weeks, to quantify brine handling requirements in the process flowsheet and obtain product purity information.

The locked-cycle test produced 400kg of flotation concentrate (Schoenite) for crystalliser vendor testing and 3kg of SOP for marketing purposes. The product quality produced by SRC from the locked-cycle test was exceptional, exceeding quality benchmarks for commercial SOP. 

The 400kg of flotation concentrate has been shipped to a leading crystalliser vendor in the United States for batch design testwork and product characterisation. The testwork is expected to be completed in the June quarter.

 

LAKE IRWIN

Surface Aquifer Exploration Program

Following the initial trench development in 2017, the Company returned to Lake Irwin with the amphibious excavator to undertake a program of test pits and additional trench excavation.

A total of 29 additional pits were excavated across the lake surface to provide geological control, 12 of these pits were slug tested to obtain bulk hydraulic conductivity parameters for the lakebed sediments.

Two additional trenches were excavated at the western and eastern ends of the Lake respectively to a length of approximately 100m and a depth of 4m. These two new trenches together with the existing trenches will be test pumped during the next quarter to determine hydraulic conductivity and specific yield.

 

LAKE BALLARD

During the quarter, the Company received confirmation from the Minister for Finance, Energy and Aboriginal Affairs that the Company’s Section 18 application over the Lake Ballard and Lake Marmion projects had been granted. The granting of the Section 18 allows SLP to recommence exploration activities at the Lake.  

 

Competent Persons Statement

The information in this report that relates to Exploration Results for Lake Irwin is based on information compiled by Mr Ben Jeuken, who is a member Australian Institute of Mining and Metallurgy. Mr Jeuken is employed by Groundwater Science Pty Ltd, an independent consulting company. Mr Jeuken has sufficient experience, which is relevant to the style of  mineralisation and type of deposit under consideration and to the activity, which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr Jeuken consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.

The information in this Announcement that relates to Exploration Results for Lake Way is extracted from the report entitled ‘Initial Results Confirm Lake Way Potential’ dated 26 April 2018 and ‘Emerging World Class SOP Potential Supported by Lake Way’ dated 12 December 2017. The information in the original ASX Announcement that related to Exploration Results, for Lake Way is based on information compiled by Mr Ben Jeuken, who is a member Australian Institute of Mining and Metallurgy. Mr Jeuken is employed by Groundwater Science Pty Ltd, an independent consulting company. Mr Jeuken has sufficient experience, which is relevant to the style of  mineralisation and type of deposit under consideration and to the activity, which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr Jeuken consents to the inclusion in the report of the matters based on his information in the form and context in which it appears. The Company confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement. The Company confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement

The information in this report that relates to Exploration Targets or Mineral Resources is extracted from the report entitled ‘Exploration Targets Reveal World Class Scale Potential’ dated 28 March 2018 The information in the original ASX Announcement that related to Exploration Targets or Mineral Resources is based on information compiled by Mr Ben Jeuken, who is a member Australian Institute of Mining and Metallurgy. Mr Jeuken is employed by Groundwater Science Pty Ltd, an independent consulting company. Mr Jeuken has sufficient experience, which is relevant to the style of  mineralisation and type of deposit under consideration and to the activity, which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr Jeuken consents to the inclusion in the report of the matters based on his information in the form and context in which it appears. The Company confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement. The Company confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement

The information in this report that relates to Process Testwork Results is based on, and fairly represents, information compiled by Mr Bryn Jones, BAppSc (Chem), MEng (Mining) who is a Fellow of the AusIMM, a ‘Recognised Professional Organisation’ (RPO) included in a list promulgated by the ASX from time to time. Mr Jones is a Director of Salt Potash Limited. Mr Jones has sufficient experience, which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking, to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr Jones consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
 

Table 6 – Summary of Exploration and Mining Tenements

As at 31 March 2018, the Company holds interests in the following tenements:

Australian Projects:

Western Australia

Lake Wells

Central

Granted

E38/2710

192.2

5 years

05-Sep-12

4-Sep-17

100%

100%

South

Granted

E38/2821

131.5

5 years

19-Nov-13

18-Nov-18

100%

100%

North

Granted

E38/2824

198.2

5 years

04-Nov-13

3-Nov-18

100%

100%

Outer East

Granted

E38/3055

298.8

5 years

16-Oct-15

16-Oct-20

100%

100%

Single Block

Granted

E38/3056

3.0

5 years

16-Oct-15

16-Oct-20

100%

100%

Outer West

Granted

E38/3057

301.9

5 years

16-Oct-15

16-Oct-20

100%

100%

North West

Granted

E38/3124

39.0

5 years

30-Nov-16

29-Nov-21

100%

100%

West

Granted

L38/262

113.0

20 years

3-Feb-17

2-Feb-38

100%

100%

East

Granted

L38/263

28.6

20 years

3-Feb-17

2-Feb-38

100%

100%

South West

Granted

L38/264

32.6

20 years

3-Feb-17

2-Feb-38

100%

100%

South

Application

L38/287

95.8

100%

100%

South Western

Granted

Granted

E38/3247

350.3

5 years

25-Jan-18

24-Jan-23

100%

100%

South

Application

M38/1278

87.47

100%

100%

Lake Ballard

West

Granted

E29/912

607.0

5 years

10-Apr-15

10-Apr-20

100%

100%

East

Granted

E29/913

73.2

5 years

10-Apr-15

10-Apr-20

100%

100%

North

Granted

E29/948

94.5

5 years

22-Sep-15

21-Sep-20

100%

100%

South

Granted

E29/958

30.0

5 years

20-Jan-16

19-Jan-21

100%

100%

South East

Granted

E29/1011

68.2

5 years

11-Aug-17

10-Aug-22

100%

100%

South East

Granted

Granted

E29/1020

9.3

5 years

21-Feb-18

20-Feb-23

100%

100%

South East

Granted

Granted

E29/1021

27.9

5 years

21-Feb-18

20-Feb-23

100%

100%

South East

Granted

Granted

E29/1022

43.4

5 years

21-Feb-18

20-Feb-23

100%

100%

Lake Irwin

West

Granted

E37/1233

203.0

5 years

08-Mar-16

07-Mar-21

100%

100%

Central

Granted

E39/1892

203.0

5 years

23-Mar-16

22-Mar-21

100%

100%

East

Granted

E38/3087

139.2

5 years

23-Mar-16

22-Mar-21

100%

100%

North

Granted

E37/1261

107.3

5 years

14-Oct-16

13-Oct-21

100%

100%

Central East

Granted

E38/3113

203.0

5 years

14-Oct-16

13-Oct-21

100%

100%

South

Granted

E39/1955

118.9

5 years

14-Oct-16

13-Oct-21

100%

100%

North West

Application

E37/1260

203.0

100%

100%

South West

Application

E39/1956

110.2

100%

100%

Lake Minigwal

West

Granted

E39/1893

246.2

5 years

01-Apr-16

31-Mar-21

100%

100%

East

Granted

E39/1894

158.1

5 years

01-Apr-16

31-Mar-21

100%

100%

Central

Granted

E39/1962

369.0

5 years

8-Nov-16

7-Nov-21

100%

100%

Central East

Granted

E39/1963

93.0

5 years

8-Nov-16

7-Nov-21

100%

100%

South

Granted

E39/1964

99.0

5 years

8-Nov-16

7-Nov-21

100%

100%

South West

Application

E39/1965

89.9

100%

100%

Lake Way

Central

Granted

E53/1878

217.0

5 years

12-Oct-16

11-Oct-21

100%

100%

South

Application

E53/1897

77.5

100%

100%

Lake Marmion

North

Granted

E29/1000

167.4

5 years

03-Apr-17

02-Apr-22

100%

100%

Central

Granted

E29/1001

204.6

5 years

03-Apr-17

02-Apr-22

100%

100%

South

Granted

E29/1002

186.0

5 years

15-Aug-17

14-Aug-22

100%

100%

West

Granted

E29/1005

68.2

5 years

11-Jul-17

10-Jul-22

100%

100%

Lake Noondie

North

Application

E57/1062

217.0

100%

100%

Central

Application

E57/1063

217.0

100%

100%

South

Application

E57/1064

55.8

100%

100%

West

Application

E57/1065

120.9

100%

100%

East

Application

E36/932

108.5

100%

100%

Lake Barlee

North

Application

E49/495

217.0

100%

100%

Central

Granted

E49/496

220.1

5 years

17-Dec-17

16-Dec-22

100%

100%

South

Granted

E77/2441

173.6

5 years

09-Oct-17

08-Oct-22

100%

100%

Lake Raeside

North

Application

E37/1305

155.0

100%

100%

Lake Austin

West

Application

Application Lodged

E21/205

117.8

100%

West

Application

Application Lodged

E21/206

192.2

100%

West

Application

Application Lodged

E58/529

213.9

100%

West

Application

Application Lodged

E58/530

217.0

100%

West

Application

Application Lodged

E58/531

96.1

100%

Northern Territory

Lake Lewis

South

Granted

EL 29787

146.4

6 years

08-Jul-13

7-Jul-19

100%

100%

North

Granted

EL 29903

125.1

6 years

21-Feb-14

20-Feb-19

100%

100%

APPENDIX 1 – LAKE IRWIN TEST PIT LOCATION DATA

Hole_ID

East

North

EOH

Hole_ID

East

North

EOH

LITT028

370167

6905453

6.0

LITT043

369662

6904489

6.0

LITT029

370157

6905023

6.0

LITT044

369176

6904645

6.0

LITT030

370131

6904535

6.0

LITT045

368564

6904252

6.0

LITT031

370311

6904080

6.0

LITT046

368059

6904105

2.0

LITT032

370711

6903601

6.0

LITT047

367550

6903968

2.0

LITT033

371017

6903199

6.0

LITT048

367055

6903816

3.0

LITT034

370781

6902715

6.0

LITT049

366565

6903685

3.0

LITT035

370842

6902214

6.0

LITT050

366090

6903526

3.0

LITT036

371196

6901816

6.0

LITT051

365629

6903326

3.0

LITT037

371632

6901572

6.0

LITT052

365153

6903175

4.0

LITT038

371799

6901412

6.0

LITT053

364294

6904675

4.5

LITT039

371956

6901902

6.0

LITT054

363879

6904397

4.0

LITT040

371672

6902319

6.0

LITT055

363459

6904124

4.0

LITT041

371415

6902727

6.0

LITT056

362109

6903462

6.0

LITT042

370518

6905194

6.0

 

APPENDIX 2 – LAKE IRWIN BRINE CHEMISTRY ANALYSIS

HOLE ID

From

 (m)

To

(m)

K

(mg/L)

Cl

(mg/L)

Na

(mg/L)

Ca

(mg/L)

Mg

(mg/L)

SO4

(mg/L)

TDS

(g/L)

LITT045

0

6.0

3,040

155,150

95,200

490

5,830

21,800

243

LITT046

0

6.0

3,410

153,600

96,800

481

5,300

22,000

243

LITT047

0

6.0

3,200

153,050

97,200

462

6,050

23,500

244

LITT048

0

6.0

3,160

153,250

95,700

465

6,470

24,500

244

LITT049

0

6.0

3,070

153,750

96,900

455

6,780

24,800

247

LITT050

0

6.0

3,050

152,550

96,000

450

6,240

24,500

254

LITT051

0

6.0

3,240

156,550

98,200

448

5,930

23,900

248

LITT052

0

6.0

3,150

155,700

98,200

444

6,270

24,500

247

LITT053

0

6.0

3,430

161,950

101,000

452

6,550

23,400

254

LITT054

0

6.0

3,360

153,400

97,100

512

5,480

21,700

242

LITT055

0

6.0

3,290

155,150

98,300

514

5,660

21,200

244

LITT056

0

6.0

3,770

160,050

98,900

430

6,000

23,600

251

 

 

APPENDIX 3 – JORC TABLE ONE

Section 1: Sampling Techniques and Data

Criteria

JORC Code explanation

Commentary

Sampling techniques

Nature and quality of sampling (eg cut channels, random chips, or specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as down hole gamma sondes, or handheld XRF instruments, etc). These examples should not be taken as limiting the broad meaning of sampling.

Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used.

Aspects of the determination of mineralisation that are Material to the Public Report.

In cases where ‘industry standard’ work has been done this would be relatively simple (eg ‘reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assay’). In other cases more explanation may be required, such as where there is coarse gold that has inherent sampling problems. Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information.

Lake Irwin

Geological samples were obtained from the excavator bucket at regular depth intervals.

Brine samples were taken from the discharge of trench dewatering pumps.

 

Drilling techniques

Drill type (eg core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple or standard tube, depth of diamond tails, face-sampling bit or other type, whether core is oriented and if so, by what method, etc).

Lake Irwin

Excavation with a low ground pressure excavator.

 

 

Drill sample recovery

Method of recording and assessing core and chip sample recoveries and results assessed.

Measures taken to maximise sample recovery and ensure representative nature of the samples. Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential loss/gain of fine/coarse material.

Lake Irwin

Not applicable for trenching.

 

Logging

Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies.

Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc) photography.

The total length and percentage of the relevant intersections logged.

Lake Irwin

All trenches and test pits were geologically logged qualitatively by a qualified geologist, noting in particular moisture content of sediments, lithology, colour, induration, grainsize and shape, matrix and structural observations. Flow rate data was logged to note water inflow zones.

 

Sub-sampling techniques and sample preparation

If core, whether cut or sawn and whether quarter, half or all core taken.

If non-core, whether riffled, tube sampled, rotary split, etc and whether sampled wet or dry.

For all sample types, the nature, quality and appropriateness of the sample preparation technique.

Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples.

Measures taken to ensure that the sampling is representative of the in situ material collected, including for instance results for field duplicate/second-half sampling.

Whether sample sizes are appropriate to the grain size of the material being sampled.

Lake Irwin

Brine samples were taken from the discharge of trench dewatering pumps.

Sample bottles are rinsed with brine which is discarded prior to sampling.

All brine samples taken in the field are split into two sub-samples: primary and duplicate.  Reference samples were analysed at a separate laboratory for QA/QC.

Representative chip trays and bulk lithological samples are kept for records.

 

 

Quality of assay data and laboratory tests

The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total.

For geophysical tools, spectrometers, handheld XRF instruments, etc, the parameters used in determining the analysis including instrument make and model, reading times, calibrations factors applied and their derivation, etc.

Nature of quality control procedures adopted (eg standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established.

Primary samples were sent to Bureau Veritas Minerals Laboratory, Perth. 

Brine samples were analysed using ICP-AES for K, Na, Mg, Ca, with chloride determined by Mohr titration and alkalinity determined volumetrically. Sulphate was calculated from the ICP-AES sulphur analysis.

 

Verification of sampling and assaying

The verification of significant intersections by either independent or alternative company personnel.

The use of twinned holes.

Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols.

Discuss any adjustment to assay data.

Data entry is done in the field to minimise transposition errors.

Brine assay results are received from the laboratory in digital format, these data sets are subject to the quality control described above.  All laboratory results are entered in to the company’s database and validation completed.

Independent verification of significant intercepts was not considered warranted given the relatively consistent nature of the brine.

Location of data points

Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys), trenches, mine workings and other locations used in Mineral Resource estimation.

Specification of the grid system used.

Quality and adequacy of topographic control.

Trench and test pit co-ordinates were captured using hand held GPS.

Coordinates were provided in GDA 94_MGA Zone 51.

Topographic control is obtained using Geoscience Australia’s 1-second digital elevation product.

 

Data spacing and distribution

Data spacing for reporting of Exploration Results.

Whether the data spacing and distribution is sufficient to establish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied.

Whether sample compositing has been applied.

Lake Irwin

Trench hole spacing is shown on the attached maps and varies due to irregular access along the lake edge.

 

Orientation of data in relation to geological structure

Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known, considering the deposit type.

If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias, this should be assessed and reported if material.

Lake Irwin

Trenches and test pits were vertical. Geological structure is considered to be flat lying.

 

Sample security

The measures taken to ensure sample security.

All brine samples were marked and kept onsite before transport to the laboratory.

All remaining sample and duplicates are stored in the Perth office in climate-controlled conditions.

Chain of Custody system is maintained.

Audits or reviews

The results of any audits or reviews of sampling techniques and data.

No audits were undertaken.

 

Section 2: Reporting of Exploration Results

Criteria

JORC Code explanation

Commentary

Mineral tenement and land tenure status

Type, reference name/number, location and ownership including agreements or material issues with third parties such as joint ventures, partnerships, overriding royalties, native title interests, historical sites, wilderness or national park and environmental settings.

The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area.

 

Lake Irwin

Tenements sampled 37/1233, 38/3087 and 39/1892 in Western Australia.

Exploration Licenses are held by Piper Preston Pty Ltd (fully owned subsidiary of ASLP).

Exploration done by other parties

Acknowledgment and appraisal of exploration by other parties.

Details are presented in the report.

 

Geology

Deposit type, geological setting and style of mineralisation.

Salt Lake Brine Deposit

 

 

 

 

 

Drill hole Information

A summary of all information material to the understanding of the exploration results including a tabulation of the following information for all Material drill holes:

o   easting and northing of the drill hole collar

o   elevation or RL (Reduced Level – elevation above sea level in metres) of the drill hole collar

o   dip and azimuth of the hole

o   down hole length and interception depth

o   hole length.

If the exclusion of this information is justified on the basis that the information is not Material and this exclusion does not detract from the understanding of the report, the Competent Person should clearly explain why this is the case.

Details are presented in the report.

 

 

Data aggregation methods

In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated.

Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results, the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail.

The assumptions used for any reporting of metal equivalent values should be clearly stated.

Details are presented in the report.

 

Relationship between mineralisation widths and intercept lengths

These relationships are particularly important in the reporting of Exploration Results.

If the geometry of the mineralisation with respect to the drill hole angle is known, its nature should be reported.

If it is not known and only the down hole lengths are reported, there should be a clear statement to this effect (eg ‘down hole length, true width not known’).

Lake Irwin

The unit is flat lying and trenches and pits are vertical hence the intersected downhole depth is equivalent to the inferred thickness of mineralisation.

 

 

Diagrams

Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include, but not be limited to a plan view of drill hole collar locations and appropriate sectional views.

Addressed in the announcement.

Balanced reporting

Where comprehensive reporting of all Exploration Results is not practicable, representative reporting of both low and high grades and/or widths should be practiced to avoid misleading reporting of Exploration Results.

All results have been included.

Other substantive exploration data

Other exploration data, if meaningful and material, should be reported including (but not limited to): geological observations; geophysical survey results; geochemical survey results; bulk samples – size and method of treatment; metallurgical test results; bulk density, groundwater, geotechnical and rock characteristics; potential deleterious or contaminating substances.

Gravity survey was completed by Atlas Geophysics using a Hi Target V100 GNSS receiver for accurate positioning and CG-5 Digital Automated Gravity Meter.   

Gravity data was gained using the contractors rapid acquisition, high accuracy UTV borne techniques.  The company’s own in-house reduction and QA software was used to reduce the data on a daily basis to ensure quality and integrity.  All gravity meters were calibrated pre and post survey and meter drift rates were monitored daily.  3 to 5 % of the stations are repeated for quality control.

Western Geophysics were engaged to manage and process the gravity survey.  Processing the survey involved reducing the gravity data and integrating to the regional data to a residual anomaly which shows there is a semi-continuous distinct residual gravity low of negative 2 to 2.5 milligals present along eastern to central areas to the entire tenement area.

Further work

The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling).

Diagrams clearly highlighting the areas of possible extensions, including the main geological interpretations and future drilling areas, provided this information is not commercially sensitive.

Further trench testing and numerical hydrogeological modelling to be completed that incorporates the results of the test pumping.  The model will be the basis of the annual brine abstraction rate and mine life.

 

 

Name of entity

Salt Lake Potash Limited

ABN

Quarter ended (“current quarter”)

98 117 085 748

31 March 2018

Consolidated statement of cash flows

Current quarter $A’000

Year to date              (9 months)
$A’000

1.

Cash flows from operating activities

1.1

Receipts from customers

1.2

Payments for

(1,193)

(4,503)

(a)   exploration & evaluation

(b)   development

(c)   production

(d)   staff costs

(597)

(1,958)

(e)   administration and corporate costs

(238)

(820)

1.3

Dividends received (see note 3)

1.4

Interest received

61

194

1.5

Interest and other costs of finance paid

1.6

Income taxes paid

1.7

Research and development refunds

457

1.8

Other (provide details if material)
– Business Development

– GST refunds (paid)

– Exploration Incentive Scheme

(264)

66

(604)

104

30

1.9

Net cash from / (used in) operating activities

(2,165)

(7,100)

2.

Cash flows from investing activities

(35)

(122)

2.1

Payments to acquire:

(a)   property, plant and equipment

(b)   tenements (see item 10)

(c)   investments

(d)   other non-current assets

2.2

Proceeds from the disposal of:

(a)   property, plant and equipment

(b)   tenements (see item 10)

(c)   investments

(d)   other non-current assets

2.3

Cash flows from loans to other entities

2.4

Dividends received (see note 3)

2.5

Other (provide details if material)

2.6

Net cash from / (used in) investing activities

(35)

(122)

3.

Cash flows from financing activities

3.1

Proceeds from issues of shares

3.2

Proceeds from issue of convertible notes

3.3

Proceeds from exercise of share options

3.4

Transaction costs related to issues of shares, convertible notes or options

(75)

3.5

Proceeds from borrowings

3.6

Repayment of borrowings

3.7

Transaction costs related to loans and borrowings

3.8

Dividends paid

3.9

Other (provide details if material)

3.10

Net cash from / (used in) financing activities

(75)

4.

Net increase / (decrease) in cash and cash equivalents for the period

10,500

15,597

4.1

Cash and cash equivalents at beginning of period

4.2

Net cash from / (used in) operating activities (item 1.9 above)

(2,165)

(7,100)

4.3

Net cash from / (used in) investing activities (item 2.6 above)

(35)

(122)

4.4

Net cash from / (used in) financing activities (item 3.10 above)

(75)

4.5

Effect of movement in exchange rates on cash held

4.6

Cash and cash equivalents at end of period

8,300

8,300

5.

Reconciliation of cash and cash equivalents
at the end of the quarter (as shown in the consolidated statement of cash flows) to the related items in the accounts

Current quarter
$A’000

Previous quarter
$A’000

5.1

Bank balances

2,300

2,500

5.2

Call deposits

6,000

8,000

5.3

Bank overdrafts

5.4

Other (provide details)

5.5

Cash and cash equivalents at end of quarter (should equal item 4.6 above)

8,300

10,500

6.

Payments to directors of the entity and their associates

Current quarter
$A’000

6.1

Aggregate amount of payments to these parties included in item 1.2

(140)

6.2

Aggregate amount of cash flow from loans to these parties included in item 2.3

6.3

Include below any explanation necessary to understand the transactions included in items 6.1 and 6.2

Payments include director and consulting fees, superannuation and provision of corporate, administration services, and a fully serviced office.

7.

Payments to related entities of the entity and their associates

Current quarter
$A’000

7.1

Aggregate amount of payments to these parties included in item 1.2

7.2

Aggregate amount of cash flow from loans to these parties included in item 2.3

7.3

Include below any explanation necessary to understand the transactions included in items 7.1 and 7.2

Not applicable.

8.

Financing facilities available
Add notes as necessary for an understanding of the position

Total facility amount at quarter end
$A’000

Amount drawn at quarter end
$A’000

8.1

Loan facilities

8.2

Credit standby arrangements

8.3

Other (please specify)

8.4

Include below a description of each facility above, including the lender, interest rate and whether it is secured or unsecured. If any additional facilities have been entered into or are proposed to be entered into after quarter end, include details of those facilities as well.

Not applicable

9.

Estimated cash outflows for next quarter

$A’000

9.1

Exploration and evaluation

1,500

9.2

Development

9.3

Production

9.4

Staff costs

750

9.5

Administration and corporate costs

200

9.6

Other (provide details if material)
– Business Development


200

9.7

Total estimated cash outflows

2,650

10.

Changes in tenements
(items 2.1(b) and 2.2(b) above)

Tenement reference and location

Nature of interest

Interest at beginning of quarter

Interest at end of quarter

10.1

Interests in mining tenements and petroleum tenements lapsed, relinquished or reduced

Refer to Table 6

10.2

Interests in mining tenements and petroleum tenements acquired or increased

Compliance statement

1        This statement has been prepared in accordance with accounting standards and policies which comply with Listing Rule 19.11A.

2        This statement gives a true and fair view of the matters disclosed.

Sign here:         ……………………………………………………                        Date: 30 April 2018

(Director/Company secretary)

Print name:       Sam Cordin

Notes

1.       The quarterly report provides a basis for informing the market how the entity’s activities have been financed for the past quarter and the effect on its cash position. An entity that wishes to disclose additional information is encouraged to do so, in a note or notes included in or attached to this report.

2.       If this quarterly report has been prepared in accordance with Australian Accounting Standards, the definitions in, and provisions of, AASB 6: Exploration for and Evaluation of Mineral Resources and AASB 107: Statement of Cash Flows apply to this report. If this quarterly report has been prepared in accordance with other accounting standards agreed by ASX pursuant to Listing Rule 19.11A, the corresponding equivalent standards apply to this report.

3.       Dividends received may be classified either as cash flows from operating activities or cash flows from investing activities, depending on the accounting policy of the entity.

For further information please visit www.saltlakepotash.com.au or contact:

Matt Syme/Sam Cordin

Salt Lake Potash Limited

Tel: +61 8 9322 6322

Jo Battershill

Salt Lake Potash Limited

Tel: +44 (0) 20 7478 3900

Colin Aaronson/Richard Tonthat

Grant Thornton UK LLP (Nominated Adviser)

Tel: +44 (0) 20 7383 5100

Derrick Lee/Beth McKiernan

Cenkos Securities plc (Joint Broker)

Tel: +44 (0) 131 220 6939

Jerry Keen/Toby Gibbs

 

Shore Capital (Joint broker)

Tel: +44 (0) 20 7468 7967

 

 

Salt Lake Potash #SO4 – Exploration targets reveal World Class scale potential

Salt Lake Potash Limited (SLP or the Company) is pleased to announce results of an initial estimate of Exploration Targets for eight of the nine lakes comprising the Company’s Goldfields Salt Lakes Project (GSLP). The ninth lake, Lake Wells, already has a Mineral Resource reported in accordance with the JORC code.

The total “stored” Exploration Target for the GSLP is 290Mt – 458Mt of contained Sulphate of Potash (SOP) with an average SOP grade of 4.4 – 7.1kg/m3 (including Lake Wells’ Mineral Resource of 80-85Mt). On a “drainable” basis the total Exploration Target ranges from 26Mt – 153Mt of SOP. The total playa area of the lakes is approximately 3,312km2.

The potential quantity and grade of this Exploration Target is conceptual in nature. There has been insufficient exploration to estimate a Mineral Resource and it is uncertain if further exploration will result in the estimation of a Mineral Resource.

Area

Average Grade (kg/m3)

Stored (Mt)

Drainable (Mt)

Lake

(km2)

SOP (min)

SOP (max)

SOP (min)

SOP (max)

SOP (min)

SOP (max)

Ballard

626

3.5

4.7

42

53

3.1

18

Barlee

350

1.9

4.3

10

21

0.8

8.1

Irwin

306

4.8

8.1

25

43

1.9

15

Marmion

339

3.0

5.1

20

34

1.6

11

Minigwal

567

3.8

8.3

45

98

3.4

31

Noondie

386

4.2

6.0

35

50

2.8

16

Raeside

89

2.1

7.0

6

20

0.4

5.4

Way

172

5.6

15.5

28

54

2.7

19

Wells

477

8.7

8.8

801

851

92

292

Total

3,312

4.4

7.1

290

458

26

153

1.     Incorporating Lake Wells’ stored Mineral Resource Estimate previously reported.

2.     Lake Wells Mineral stored Mineral Resource Estimate converted to drainable equivalent.

Table 1: GSLP Exploration Target

The combined resources and exploration targets in the GSLP comprise a globally significant Project in the SOP sector, potentially sustaining one of the world’s largest SOP production operations for many decades.

CEO Matt Syme commented “These initial exploration targets allow us for the first time to quantify the real scale of the long term opportunity at the Goldfields Salt Lakes Project. We have already made very substantial progress in revealing the outstanding potential at Lake Wells and these Exploration Targets illustrate how the broader Project has a multiple of that potential. This places the GSLP asset at the leading edge of world scale SOP development opportunities.”

The Company’s long term plan is to develop an integrated SOP operation, producing from a number (or all) of the lakes within the GSLP, after confirming the technical and commercial elements of the Project through construction and operation of a Demonstration Plant producing up to 50,000tpa of SOP. 

The Company’s recent Memorandum of Understanding with Blackham Resources Limited (see ASX Announcement dated 12 March 2018) offers the potential for an expedited path to development at Lake Way, possibly the best site for a 50,000tpa Demonstration Plant in Australia.

The GSLP has a number of very important, favourable characteristics:

Ø  Very large paleochannel hosted brine aquifers, with chemistry amenable to evaporation of salts for SOP production, extractable from both  low cost trenches and deeper bores;

Ø  Over 3,300km2 of playa surface, with in-situ clays suitable for low cost on-lake pond construction;

Ø  Excellent evaporation conditions;

Ø  Excellent access to transport, energy and other infrastructure in the major Goldfields mining district;

Ø  Lowest quartile capex and opex potential based on the Lake Wells Scoping Study;

Ø  Clear opportunity to reduce transport costs by developing lakes closer to infrastructure and by capturing economies of scale;

Ø  Multi-lake production offers operational flexibility and protection from localised weather events;

Ø  The very high level of technical validation already undertaken at Lake Wells substantially applies to the other lakes in the GSLP; and

Ø  Potential co-product revenues, particularly where transport costs are lowest.

Salt Lake Potash will progressively explore the lakes in the portfolio with a view to estimating resources for each Lake, in parallel with the development of the Demonstration Plant. Exploration of the lakes will be prioritised based on likely transport costs, scale, permitting pathway and brine chemistry.

THE GOLDFIELDS SALT LAKES PROJECT

The nine lakes comprising the GSLP were selected for scale, potential brine volume, known hypersaline brine characteristics, and the potential for production from both shallow trenches and deeper paleochannel aquifer bores. Each has a large surface area, a flat and bare surface playa and proximity to the important transport and energy infrastructure and engineering expertise available in the Western Australian Goldfields. 

The GSLP has a number of very important, favourable characteristics:

Paleochannel Hosted Brine Aquifers

The GSLP salt lakes are each part of typical Western Australian paleovalley environments. Ancient hydrological systems incised paleovalleys into Palaeozoic or older basement rocks, which were then infilled by Tertiary-aged sediments, typically comprising a coarse-grained fluvial basal sand, overlain by paleovalley clay with some coarser grained interbeds. The clay is overlain by recent Cainozoic material including lacustrine sediment, calcrete, evaporite and aeolian deposits. 

There are two methods of extracting brine from aquifers. Firstly, low cost trenching from the surface aquifer and the secondly, extraction from the paleochannel basal aquifer via bores.

All the lakes in the GSLP offer very large paleochannel hosted brine aquifers, with brine chemistry amenable to evaporation of salts for SOP production.

Large Playa Surface

The lakes included in the GSLP have a surface area averaging 370km2 and totaling over 3,300km2. This large surface area and the occurrence of impermeable clays near the surface, provides the potential for constructing low cost, on-lake, unlined evaporation ponds.

As demonstrated at Lake Wells (refer to ASX Announcement dated 16 October 2017), this provides significant potential capex savings. The results from the evaporation pond trial at Lake Wells exceeded expectations and strongly validated SLP’s model for construction of on-lake, unlined evaporation ponds. Net seepage of 2.4mm per day in a test scale pond extrapolates to less than 0.125mm per day in a 400ha Demonstration Plant scale halite pond, a negligible inefficiency in the context of overall pond operations.

Preliminary excavation and sampling at Lakes Ballard, Irwin and Way also indicate the presence of clays amenable for pond construction near the lake surface.

Excellent Evaporation Conditions

The Goldfields has very favourable arid climatic conditions with annual Class A pan evaporation in the region around ~3,000mm per year. This compares favourably with other global brine projects currently in production.

Access to Transport, Energy and Other Infrastructure

The lakes of the GSLP are strategically located close to the regional transport and energy infrastructure corridor. Transport from site to port is the single largest cost factor for (export oriented) Australian salt lake SOP projects, and the GSLP has a considerable advantage in this regard, with excellent proximity to the Kalgoorlie-Leonora rail line and the Goldfields Highway. The Company has made substantial progress in understanding and optimising its transport proposition, with major economies of scale to be achieved as the production volume increases.

The table below sets out the straight-line and existing road distances to the nearest railhead for each lake.

Lake

Railhead

Straight-line Distance to Rail line
(km)

Likely Road Haul Distance
(km)

Lake Wells

Malcolm

270

318

Lake Way

Leonora

230

281

Lake Irwin

Leonora

85

170

Lake Ballard

Menzies

2

20

Lake Marmion

Menzies

20

47

Lake Minigwal

Kookynie

130

172

Lake Raeside

Leonora

20

20

Lake Noondie

Leonora

110

198

Lake Barlee

Menzies

130

133

Average

111

151

Table 2: Transportation Distances of the GSLP

The Goldfields Gas Pipeline also intersects the GSLP, passing close to a number of lakes, offering potential energy cost savings.

Multi-Lake Production

There is substantial potential for integration, economies of scale, operating synergies and overhead sharing in the GSLP across a number of producing lakes.

There is also the possibility of some important elements of the SOP production process such as compaction, agglomeration and packaging being centralised, probably adjacent to rail loading facilities.

The flexibility of multi-lake production is also appealing for a natural production process which is subject to climate variability, where the operating risk of individual high rainfall events is diminished over a portfolio of production lakes.

Technical Validation Already Undertaken at Lake Wells

At Lake Wells, the Company has tested and verified all the major technical foundations for production of SOP from Lake Wells brine to a standard previously unseen in Australia under actual site conditions and across all seasons.

These key technical achievements at Lake Wells will have significant application across the other lakes in the GSLP, given the similar geology, brine chemistry and climate conditions.

Lowest Quartile Capex and Opex

The Scoping Study on Lake Wells released in August 2016 (see ASX announcement dated 29 August 2016) highlighted the outstanding potential economics of extracting hypersaline brine by trenches and bores for solar evaporation of salts and processing to produce premium SOP. The Scoping Study indicates Lake Wells would be firmly in the lowest cost quartile for any SOP Project in Australia and around the world, with relatively low transport costs being a major advantage.

Stage 1

Stage 2

Annual Production (tpa) – steady state

200,000

400,000

Capital Cost * 

A$191m

A$39m

Operating Costs **

A$241/t

A$185/t

* Capital Costs based on an accuracy of -10%/+30% before contingencies and growth allowance but including EPCM. Stage 1 Capital Costs include most of the main capital items for 400,000tpa production.

** Operating Costs based on an accuracy of ±30% including transportation & handling (FOB Esperance) but before royalties and depreciation.

Table 3: Lake Wells Scoping Study

Lake Way is likely to offer material economic advantages even over Lake Wells due to proximity and availability of transport and other infrastructure and potential cost saving with the Matilda-Wiluna Gold Operation.

Production of Valuable Co-Products

Brine modelling and evaporation testwork has demonstrated that Lakes Wells, Irwin, Ballard and Way can produce potassium and magnesium salts amenable to conversion to SOP and also potentially other valuable co-products.

Kieserite (MgSO4.H2O) and Epsom salts (MgSO4.7H2O) are valuable fertiliser products for both the domestic and export markets, with particular application in the tropical crop regions in South East Asia, South America and Africa.

While magnesium nutrients have lower market value than SOP, they are potentially valuable co-products, particularity where transport costs are lowest, for example Lakes Ballard and Marmion.

Exploration Targets for MgSO4.7H2O (Epsom Salt) were calculated at the each lake, except Lake Wells, as follows:

Stored (Mt)

Drainable (Mt)

Average Grade (kg/m3)

Lake

MgSO4 (min)

MgSO4 (max)

MgSO4 (min)

MgSO4 (max)

MgSO4 (min)

MgSO4 (max)

Ballard

667

949

51

320

58

82

Barlee

158

431

13

163

31

84

Irwin

145

304

11

106

27

57

Marmion

355

712

27

235

53

107

Minigwal

668

1,462

50

469

57

124

Noondie

308

488

23

154

37

58

Raeside

86

358

6

98

30

126

Way

151

339

15

125

49

105

Total

2,538

5,043

196

1,670

46

92

MgSO4 = the molar mass of MgSO4.7H20 based on a conversion ratio of 10.14 of Mg to MgSO4.7H2O.

Table 4: Magnesium Sulphate Exploration Target

The potential quantity and grade of this Exploration Target is conceptual in nature. There has been insufficient exploration to estimate a Mineral Resource and it is uncertain if further exploration will result in the estimation of a Mineral Resource.

APPENDIX 1 – EXPLORATION TARGET METHODOLOGY AND RESULTS

GSLP Exploration Targets:

Exploration Target calculated using Total Porosity:

Lake

Playa Area

Estimated
Paleochannel Length

Sediment Volume

Brine Volume

Average Potassium Concentration
kg/m3

SOP Tonnage
Mt

Km2

Km

Mm3

Mm3

Lower Estimate

Upper Estimate

Lower Estimate

Upper Estimate

Ballard

626

55

26,370

11,487

1.6

2.1

42

53

Barlee

350

60

11,455

5,107

0.8

1.9

10

21

Irwin

306

22

11,942

5,236

2.1

3.6

25

43

Marmion

339

35

15,294

6,626

1.3

2.3

20

34

Minigwal

567

100

27,166

11,716

1.7

3.7

45

98

Noondie

386

75

19,412

8,345

1.9

2.7

35

50

Raeside

89

35

6,775

2,844

0.9

3.1

6

20

Way

172

25

8,044

3,475

3.6

7.0

28

54

Wells

477

60

24,723

9,639

3.9

80

85

Total

3,312

467

151,181

64,474

290

458

Table 5: Exploration Target calculated using Total Porosity

Exploration Target calculated using Drainable Porosity:

Lake

Sediment Volume

Weighted Average
Drainable Porosity 1

Brine Volume

Average Potassium Concentration

SOP Tonnage

Mm3

kg/m3

Mt

Mm3

Sy
Lower

Sy
Upper

Lower Estimate

Upper Estimate

Lower Estimate

Upper Estimate

Lower Estimate

Upper Estimate

Ballard

26,370

0.03

0.15

882

3,913

1.6

2.1

3.1

18

Barlee

11,455

0.04

0.17

404

1,931

0.8

1.9

0.8

8

Irwin

11,942

0.03

0.15

408

1,844

2.1

3.6

1.9

15

Marmion

15,294

0.03

0.14

501

2,192

1.3

2.3

1.6

11

Minigwal

27,166

0.03

0.14

877

3,783

1.7

3.7

3.4

31

Noondie

19,412

0.03

0.14

619

2,645

1.9

2.7

2.8

16

Raeside

6,775

0.03

0.11

198

778

0.9

3.1

0.4

5

Way

8,044

0.04

0.15

299

1,196

2.8

7.1

2.7

19

Wells2

24,723

0.04

0.14

1,074

3,355

3.9

9

29

Total

151,181

0.03

0.14

5,262

21,637

26

153

1.   Drainable Porosity was assigned to each geological unit per Table 9 Porosity Estimates.  The volume weighted average value is presented here.

2.   Incorporating Lake Wells’ total Mineral Resource Estimate previously reported.

Table 6: Exploration Target calculated using Drainable Porosity

The potential quantity and grade of this Exploration Target is conceptual in nature. There has been insufficient exploration to estimate a Mineral Resource and it is uncertain if further exploration will result in the estimation of a Mineral Resource.

The Company engaged an independent hydrogeological consultant with substantial salt lake brine expertise, Groundwater Science Pty Ltd, to complete the Exploration Targets for all the lakes in the GSLP.

Scope

The Exploration Target is a statement or estimate of the exploration potential of a mineral deposit in a defined geological setting where the statement of estimate, quotes as a range of tones and a range of grade (or Quality), relative to mineralisation for which there has been insufficient exploration to estimate a Mineral Resource. The potential quantity and grade is conceptual in nature and there has been insufficient exploration to estimate a Mineral Resource and it is uncertain if further exploration will result in the estimation of a Mineral Resource.

The Exploration Targets are reported in accordance with

•          the JORC Code 2012,

•          the draft Guidelines for Resource and Reserve Estimation for Lithium and Potash Brines, developed by the Australia  Association of Mining and Exploration Companies (AMEC), and

•          the Canadian Institute of Mining, Metallurgy and Petroleum (CIM) Best Practice Guidelines for Resource and Reserve Estimation for Lithium Brines.

A Mineral Resource Estimate for Lake Wells has been reported (refer to ASX Announcements dated 11 November 2015 and 22 February 2016), comprising a total of 85Mt SOP. This estimate was calculated as the total in-situ resource based on the total porosity of the brine host aquifer. The resource has been re-calculated for this study based on the estimates of drainable porosity that are detailed below. The aim is to provide an estimate of mineralisation that is comparable to the proposed Exploration Targets and collate an inventory of the entire GSLP project.

Data sources

An exploration target for each lake has been defined by review of:

·      All historic exploration data that has been released for the tenement, including drilling and geophysics;

·      All public geology and hydrogeology reports, maps and data;

·      Company hydrogeological reports obtained from the Western Australia Department of Water and Environmental Regulation via freedom of information request;

·      Surface brine samples from test pits; and

·      Test Pits, test excavation, and geophysical survey, undertaken by SLP.

Geology

Each playa lake exhibits reasonably consistent Tertiary paleovalley morphology as described in detail by Bell et al. (2012)[1], Johnson et al. (1999)[2], and DeBroekert and Sandiford (2005)[3]. Paleovalleys are incised into the Palaeozoic or older basement rocks. These are then infilled by Tertiary-aged sediment typically comprising a coarse-grained fluvial Basal Sand overlain by Paleovalley Clay with some coarser grained interbeds. The clay is overlain by Cainozoic Alluvium, that includes lacustrine clay, calcrete, evaporite and aeolian deposits.

Geological Unit

Inferred age

Description

Hydrogeological Attributes

Lake surface and islands

Recent

Clay sediments with some sandy, evaporite and calcrete horizons containing variable abundance of evaporite minerals, particularly gypsum.

Minor aquifer.

Highly variable permeability and moderate drainable porosity.

Alluvium

Cainozoic

Unconsolidated silt, sand and clay sediments.

Minor aquifer. 

Moderate permeability and moderate drainable porosity

Paleovalley clay

Tertiary (Miocene)

Stiff to plastic clay.  Minor silt and sand interbeds

Aquitard.

Low permeability and low drainable porosity

Basal sand

Tertiary (Eocene)

Typically fining upwards sequence of sand with silt, clay and lignitic interbeds.

Major aquifer. 

High to moderate permeability and High to moderate drainable porosity

Table 7: Geological Units

Geological Model

At each playa lake, the extent and thickness of each geological unit has been inferred from the available data. Differentiating each geological unit is important because each unit exhibits specific hydrogeological properties, permeability and drainable porosity as described below.

Area

The area of each playa lake was calculated by digitising the lake surface and removing area covered by islands. These areas are used to calculate the volume of the lake sediments. The extent of the brine body hosted by alluvium has been defined by the extent of the lake playa.  Extension of the brine body beyond the lake playa edge in shallow sediment is possible but unsupported by data at this stage. Studies on other playa lakes have demonstrated that brine concentration quickly diminishes with distance from the playa edge. The mechanism for lower brine grade off the playa is understood to be dilution by rainfall infiltration and the absence of the intense evaporation that occurs on the playa surface.

The extent of the lower Paleovalley Clay and Basal Sand is based on the mapped distribution of paleovalleys across the Northern Goldfields by Johnson et al. (1999) and other studies. This has been used as the basis for determining paleovalley length. There has been additional geophysics undertaken at Lakes Ballard, Irwin and Marmion that provides a more accurate interpretation. At Lake Way, exploration drilling for the Mt Keith Borefield (AGC Woodward Clyde, 1992) has further confirmed the paleochannel extent and presence of the Basal Sand.   

Thickness

Lake Sediments (Upper Alluvium)

The lake sediments are dominated by clay lacustrine deposits with abundant evaporite minerals, such as gypsum. The thickness of this unit is poorly resolved. An average thickness of 10m has been assumed. The 10m thickness of Lake sediments are also the maximum depth of dilution calculated beneath islands on the Playa Surface.

Alluvium

The alluvium comprises a mixed sequence of sheetwash, calcrete and aeolian deposits that underlie the lake sediments. It has been mapped by Johnson et al. (1999) as a channel fill deposit being similar in nature to that found in present-day outwash alluvial fans and minor creeks, and it extends and is present beyond the lake margins. The thickness is highly variable and is up to 60m thick in parts of the Raeside Paleovalley. An average thickness of 15m has been applied for the exploration target estimation.

Paleochannel Clay

The paleochannel clay is a stiff clay that confines the basal paleochannel sand. It has a variable thickness depending on whether a site is within a trunk (thicker) or tributary (thinner) paleovalley. The width is dependent on the basement material with wider channels in granitoid basement and narrower channels in greenstone lithologies. For the resource estimation, the thickness and width was determined based on nearby geological transects from Langford (1997) and Johnson et al. (1999), or other company drilling in the case of Lake Way.

Basal Sand

The basal sand is present in the deepest section of the paleovalley. It has a variable thickness with some sand sections being up to 40 m thick. The development of the sand is dependent on proximity to granitoid catchments with less sand thickness in catchments dominated by greenstone lithologies. As with the paleochannel clay, the thickness and width was determined based on nearby geological transects from Langford (1997) and Johnson et al. (1999), or other company drilling in the case of Lake Way. As an example, the conceptual model applied to a cross section at Lake Ballard developed by Langford (1997). 

Brine Concentration

Brine concentration has been defined based on samples taken from test pits excavated into the Alluvium by SLP in 2017 (Appendix 3), and from historic drilling data where available. Minimum and Maximum values have been defined as the mean value +/- one standard deviation for sample sets of more than 10 samples. For sample sets of less than 10 samples, the minimum and maximum values have been used.

Where no brine chemistry data is available for the paleochannel sediments, brine concentration is assumed to be constant with depth. This assumption is supported by SLP’s experience at Lake Wells, other company reports for comparable paleochannel hosted brine in the Goldfields region, and work by Water and Rivers Commission and others. Proving this assumption by drilling and sampling is a priority for progressing evaluation of these targets. 

Hydrogeological Attributes

Hydrogeological attributes assigned to each geological unit are summarised in Table 8. 

The permeability of the Lake Sediments and Alluvium is expected to be variable. Permeability is dependent on the lithology of the sediment, development of evaporite minerals that can enhance permeability, and the development of calcrete minerals that can be extremely permeable.

Paleovalley Clay is a low permeability aquitard, brine held in this unit will not be drained by bores; however, some fraction of the brine stored in this unit might be accessed by leakage into the underlying basal sand. 

Basal Sand is typically permeable, and brine is expected to be extracted by pumping from bores.

Geological Unit

Hydrogeological Properties

Lake Sediments

Highly variable aquifer dependent on lithology and evaporite formation

Alluvium

Highly variable aquifer dependent on lithology and evaporite formation

Paleovalley Clay

Aquitard low permeability

Basal Sand

Aquifer high permeability

Table 8: Hydrogeological Attributes

Porosity

Total porosity (Pt) relates to the volume of brine-filled pores contained within a unit volume of aquifer material. A fraction of this pore volume can by drained under gravity, this is described as the drainable porosity (or specific yield). The remaining fraction of the brine, which is held by surface tension and cannot be drained under gravity, is described as the specific retention (or un-drainable porosity).

A resource calculated as the product of drainable porosity is still not completely recoverable by gravity drainage to trenches or bores.

The reported mineral tonnage represents the brine with no recovery factor applied. It will not be possible to economically extract all the contained brine by pumping. The amount that can be extracted depends on many factors including the permeability of the sediments, adjacent groundwater composition, and the recharge dynamics of the aquifers. Brine projects typically recover a small fraction of the in-situ resource.

The total and drainable porosity of each geological unit has been estimated from lithology and benchmarking against other studies completed in comparable geological settings. A summary of the porosity assigned to each geological unit and the source of the estimates is presented in Table 9.

Benchmarking of the porosity applied in this study to other Australian salt lakes is presented in Table 10.

Geological Unit

Total Porosity (%)

Drainable Porosity (%)

0.46

0.04-0.2

0.46

0.04-0.2

0.4

0.01-0.05

0.4

0.1-0.2

Table 9: Porosity Estimates

 

Project

WA Salt Lake 1
Mineral Resource Estimate

WA Salt Lake 2
Mineral Resource Estimate

WA Salt Lake 3
Mineral Resource Estimate

WA Salt Lake 4
Exploration Target

GSLP

Lake Sediments and Alluvium

Total Porosity

0.39

0.47

0.45

0.42-0.53

0.46

Drainable Porosity

0.16

0.17

0.064

0.13-0.15

0.04-0.20

Clay

Total Porosity

0.47

0.5

0.4

Drainable Porosity

0.06

0.03

0.01-0.05

Basal Sand

Total Porosity

0.4

0.4

0.4

Drainable Porosity

0.23

0.28

0.1-0.20

Source: Company releases

Table 10: Porosity Benchmarks

Brine Hydrology and Water Balance

The brine hydrology and water balance of each playa lake is not yet defined at this early stage of project evaluation.

All the playa lakes are understood to flood intermittently following large rainfall events. This is based on information derived from a Geoscience Australia dataset that presents the frequency of inundation for the Australian continent based on analysis of Landsat TM images compiled since 1984 (GA, 2017)[4].

Flooding and direct infiltration of rainfall will recharge the lake sediments and contribute to the water balance of the brine system.

Pumping from confined paleochannels results in depressurisation of the paleochannel and subsequent slow leakage of groundwater from the overlying clay aquitard and lateral inflow from the adjacent weathered basement aquifer. Studies of long-term water supply abstraction from the Roe paleochannel suggest sustainable water yields of around 1GL/year per 10km of paleochannel are possible (Johnson, 2007)[5].

Neighbouring properties and temporal effects

Neighbouring properties and temporal effects have not been evaluated at this early stage of project development.

Treatment of Islands

Many of the salt lake playas contain islands on the playa surface. These islands generally comprise gypsiferous dunes and often exhibit some vegetation.  They are more common in playas that are less frequently inundated Bowler, (1986)[6],presumably due to the erosion that occurs through wave action during periods of inundation. Research on other playas has shown that the brine beneath islands is typically diluted close to the surface. The mechanism is understood to be dilution by infiltration of rainfall through the islands, without the subsequent intense evaporation that occurs on the playa surface. This dilution effect diminishes with depth.

Shallow dilution beneath islands is considered in the Exploration Target estimate by defining the area occupied by islands and reducing brine concentration beneath the islands by a factor of 3 to a depth of 10m.

Mineralisation Extent

Mineralisation is calculated for the area beneath the salt lake playa and islands only. There is in-sufficient data at each site to infer continuity of the mineralisation beyond the playa extent.

A summary of the geological and hydrogeological data review undertaken at each playa lake is presented below.

 

APPENDIX 2 – GSLP GEOLOGICAL AND HYDROGEOLOGICAL DATA REVIEW 

LAKE BALLARD

Previous Exploration

A large amount of historical exploration work has been undertaken surrounding Lake Ballard focusing on gold, nickel and uranium. There has been limited exploration on the lake surface with most exploration associated with uranium exploration in the upper 10 m.  Soil sampling was undertaken on the lake, as well as a number of geophysical surveys and shallow drilling activities. The Company has reviewed multiple publicly available documents to provide an understanding of the geology and hydrogeology in the Lake Ballard paleodrainage.

Esso Australia (1977) completed ground-based gravity and seismic geophysical survey at western end of lake suggesting the presence of the palaeovalley. Uranerz Australia (1977) undertook airborne spectrometric and ground-based scintillometric surveys that was followed by auger drilling with 81 holes being completed to depths of up to 30 m bgl, which suggested the shallow alluvium is dominated by clay lithologies and some drill holes encountered the top of the paleochannel clay. Uranoz Ltd (2007) completed an airborne gravity survey over the eastern portion of Lake Ballard and eastward over the northern portion of Lake Marmion that broadly mapped the distribution of the paleochannel thalweg.

The most useful hydrogeological data relates groundwater exploration undertaken by the Geological Survey of Western Australia (GSWA) in 1987. Three north-south transects were drilled between Lake Ballard and Lake Marmion to explore for the main trunk paleodrainage that originates to the west of Lake Ballard and flows to the east beneath Lakes Marmion and Rebecca. Drill holes were cased where possible; however, most holes into the deeper paleochannel sediments couldn’t be cased owing to running sands. There are some drill sites with multiple bores and different screen intervals. A bore completion report details the drilling and bore construction (Nidagal, 1992), while a description of the hydrogeology between the two lakes is provided by Langford (1997).

Geology

The Lake Ballard paleodrainage is incised into the Archean basement and now in-filled with a mixed sedimentary sequence. There is a shallow sedimentary sequence comprising lake sediments overlying alluvium and colluvium that concealed a deeper sedimentary sequence of plastic clay and basal sand. The paleochannel sands occur only in the deepest portion.

The lake sediments are thin being less than 2 to 3 m thick, which tend to interfinger and grade downward into an upper, iron-stained sequence of alluvium and colluvium (up to 30 m thick). This upper sequence appears to be more clayey with noticeably less sandy horizons, when compared with other paleodrainages to the north. Between Lakes Ballard and Marmion, there are clay layers (up to 20 m thick) being separated by sandy clay to clayey sand beds.

The understanding of the deep stratigraphy in the paleovalley is limited to three drilling transects between Lakes Ballard and Marmion. The lower Tertiary-aged paleochannel sequence comprises dense plasticine clay (60m thick) and basal sands (up to 20m thick). In places, there are silcrete and sandy intervals within the plasticine clay providing a different stratigraphy to other paleodrainages.

Hydrogeology

The upper alluvium and colluvium is likely to be a minor aquifer associated with Lake Ballard, and in some places may form an aquitard. The basal sands are confined beneath the plastic clay and comprise fine to coarse-grained quartz sand, which forms a deeper aquifer being about 80m bgl in the west (estimated from ground-based geophysics) and about 110m bgl at the east of Lake Ballard. There has been no hydraulic testing of the shallow or deep aquifers at Lake Ballard; however, bore yields will be higher from the basal sands.

References

Esso Exploration and Production Australia Inc, 1977, 1999 Annual (Final) Report, Lake Ballard – Project 650, Mineral Claims 29/2988-3000, 29/3059 and 3060, 30/1249-1253, and 30/1266-1270 – unpublished report by Esso Australia, WAMEX A7536.

Langford, R., 1997, Hydrogeology of part of the Rebecca Palaeodrainage between Lake Ballard and Lake Marmion in the northeastern Goldfields of Western Australia, unpublished thesis for Master of Science (Applied Geology) at Curtin University.

Nidagal, V., 1992, Lake Ballard palaeodrainage groundwater investigation bore completion reports, Western Australia Geological Survey, Hydrogeology Report 1989/18, unpublished.

Uranerz Australia, 1977, Final Report covering the period from 10/12/1976 to 1/11/1977, Temporary Reserve No 6400H, unpublished report by Uranerz Australia, WAMEX A7330.

Uranoz Ltd, 2007, E59/599 – Goongarrie Project, Annual Technical Report, Period Ending December 18, 2007: Report compiled by Mark Gordon of Gondor Geoconsult Pty Ltd in December 2007, unpublished report for Uranoz Ltd, WAMEX A76810.

LAKE BARLEE

Previous Exploration

There has been limited exploration on the lake surface with most exploration associated with uranium exploration in the upper 10m. Soil sampling was undertaken on the lake, as well as a number of geophysical surveys and shallow drilling activities (Jervois Mining, 2013; Northern Uranium, 2008). The Company has reviewed multiple publicly available documents to provide an understanding of the geology and hydrogeology in the Lake Barlee paleodrainage.

Recent potash exploration work by Parkway Minerals on their tenements to the north of SLP tenements suggest the presence of a paleochannel feature (Parkway Minerals, 2017). There has been no drilling to date, but geophysics results indicate the combined depth of the paleovalley is about 75m (Parkway Minerals, 2017) being shallower than other paleodrainages as it is close to its headwaters.

Geology

There is little known about the stratigraphy in the Barlee Paleodrainage, as there has been no regional assessment undertaken. The paleovalley becomes shallower towards its headwaters in the west and south; as such it is possible that it is about 50m deep beneath the SLP tenements.

The paleodrainage is incised into the Archean basement and now in-filled with a mixed sedimentary sequence. Lake sediments are thin being less than 2 to 3m thick, which tend to interfinger and grade downward into an upper, iron-stained sequence of alluvium and colluvium (up to 30m thick). This shallow sedimentary sequence may conceal a deeper sedimentary sequence of plastic clay and basal sand. The presence of the paleochannel sands is unknown; however, if present they will occur in the deepest portion.

Hydrogeology

The upper alluvium and colluvium is likely to be a minor aquifer, and in some places may form an aquitard. Basal sands comprise fine to coarse-grained quartz sand may be confined beneath plastic clay and form a deeper aquifer. There has been no hydraulic testing of the shallow or deep aquifers at Lake Barlee; however, bore yields are likely to be higher from the basal sands.

References

Jervois Mining, 2013, Bulga Project, Final Surrender Report for period 6th September to 22nd May 2013, unpublished report, WAMEX A98133.

Northern Uranium, 2008, Annual Report for the Lake Barlee Project, Exploration Licence E77/1331, unpublished report, WAMEX A77895.

Parkway Minerals, 2017, Parkway Minerals announces seismic survey at Lake Barlee confirms deep paleo-channels, ASX announcement by Parkway Minerals, 17 October 2017.

LAKE IRWIN

Previous Exploration

Significant historical exploration work has been completed in the Lake Irwin area focusing on nickel and gold. This exploration work was largely undertaken in the basement lithologies surrounding the lake; however, there has been no substantial exploration on the lake.

The most useful stratigraphic and hydrogeological data relates to groundwater exploration undertaken by the Water and Rivers Commission (WRC) in 1997 and 1998. Three investigation transects were completed surrounding and across Lake Irwin. Transect B located across the middle of the lake failed to encounter the main trunk paleodrainage and is somewhat inconclusive. Transect C in the northwest encountered a palaeotributary with basal sand between 80 and 90 m bgl. Transect D located to the north of the lake encountered the basal sand between 110 and 140 m bgl. A bore completion report details the drilling and bore construction (Johnson et al., 1998), while a regional description of the hydrogeology is provided by Johnson et al. (1999).

Geology

The Carey paleodrainage, passing beneath Lake Irwin, is incised into the Archean basement and now in-filled with a mixed sedimentary sequence. There is a shallow sedimentary sequence comprising lake sediments overlying alluvium and colluvium that concealed a deeper sedimentary sequence of plastic clay and basal sand. The paleochannel sands occur only in the deepest portion.

The stratigraphy comprises thin lake sediments overlying an upper interbedded sequence of alluvium and colluvium (30m thick), and a lower Tertiary-aged paleochannel sequence of dense plasticine clay (50 to 60m) and basal sands (20 to 30m thick) that is surrounded by Archaean granite and greenstone basement.

Hydrogeology

The upper alluvium and colluvium is considered a minor aquifer owing to the fine-grained nature of the sediments and lack of thick sandy / gravel horizons. This aquifer is present beneath the entire lake surface. Direct hydraulic testing is limited; however, bore yields are likely to be low in the order of 1 to 2 L/sec and up to 5 L/sec in some cases. It is utilised by the pastoral industry for stock watering with bores and wells.

The deeper paleochannel sand is an important regional aquifer that is widely developed by the mining industry for meeting process water requirements. The thalweg of the trunk paleochannel appears to be about 1 to 2 km northeast of the lake, and only paleotributaries on the western side are present the current lake surface. In these paleotributaries, there are two production borefields (Charlie Well and Greymare) operated by Minara Resources’ Murrin Murrin operation. Long-term bore yields are commonly between 10 and 15 L/sec with up to 20 L/sec in the thickest thalweg sections.

References

Johnson, S., Mohsenzadeh, H., Yesterener, C., and Koomberi, H., 1998, Northern Goldfields regional groundwater assessment bore completion reports: Western Australia Water and Rivers Commission, Hydrogeology Report 107, unpublished.

Johnson, S., Commander, D., and O’Boy, C., 1999, Groundwater resources of the Northern Goldfields, Western Australia: Western Australia Water and Rivers Commission, Hydrogeological Record Series, Report HG2, 57p.

LAKE MARMION

Previous Exploration

A large amount of historical exploration work has been undertaken surrounding Lake Marmion focusing on gold, nickel and uranium. There has been limited exploration on the lake surface with most exploration associated with uranium exploration in the upper 10m. The Company has reviewed multiple publicly available documents to provide an understanding of the geology and hydrogeology in the paleodrainage beneath Lake Marmion.

Reports from previous tenement holders detailing mineral exploration programs provided useful data on the location of the paleochannel, and thickness / nature of the lake sediments. There have been a range of exploration activities including wide-spaced gravity surveys and some drilling at the western and eastern lake margins.

There have been several gravity surveys across the lake that have provided an understanding of the distribution of the paleochannel. The most recent surveys by Uranoz Ltd (2007a, b and c), Nickleore Ltd (2008) and Siburan Resources (2011a, b, c and 2012) suggest that the main trunk drainage takes a meandering path beneath the northern parts of the lake that merges with a large palaeotributary from the south.

Geology

There have been no regional studies on the Ballard-Marmion-Rebecca Paleodrainage – unlike the paleodrainages to the north (Johnson et al., 1999) and to the south (Commander et al., 1992).  Despite this, there is high level of confidence that the main trunk drainage traverses the northern portion of the lake from Lake Ballard to Boomerang Lake / Lake Rebecca in the east, and there is also a large paleotributary from the south. The stratigraphy seems to broadly align with other paleodrainages in the northern Goldfields.

Lake sediments are probably thin being less than 2 to 3m thick, which tend to interfinger and grade downward into an upper, iron-stained sequence of alluvium and colluvium (up to 30m thick). This upper sequence may be more clayey with noticeably less sandy horizons, when compared with other paleodrainages to the north. Between Lakes Ballard and Marmion, there are clay layers (up to 20m thick) being separated by sandy clay to clayey sand beds.

The understanding of the deep stratigraphy is based on the drilling undertaken at the lake margins. In the northwest, one incomplete and shallow drilling transect was completed by AFMECO (1978 a and b) and three drilling transects were completed by the GSWA between Lakes Ballard and Marmion with detailed lithological descriptions in the bore completion reports (Nidagal, 1992) and interpreted stratigraphy for each transect (Langford, 1997). This drilling suggests a total thickness of about 80m with 20m of alluvium / colluvium overlying 45m of plasticine clay and 15m of basal sands. There are silcrete and sandy intervals at the base of the alluvium / colluvium and throughout the plasticine clay that provides a different stratigraphy to other paleodrainages.

Hydrogeology

The upper alluvium and colluvium is considered a minor aquifer owing to the dominance of clay lithologies and lack of thick sandy / gravel horizons. It is present beneath the entire lake surface. There has been no direct hydraulic testing with bore yields to be very low, less than 1 L/sec. In places, discrete bodies of calcrete are present that form localised aquifers; however, these bodies are less common near Menzies when compared with areas to the north. Groundwater resources in this shallow aquifer will be more likely accessed via leakage rather than direct abstraction.

The deeper paleochannel sand is an important regional aquifer that is widely developed by the mining industry to the north; however, there has been no utilisation in the vicinity of Lake Marmion. Long-term bore yields are commonly between 10 and 15 L/sec with up to 20 L/sec in the thickest thalweg sections.

References

AFMECO, 1978a, Yilgarn Drainage, Temporary Reserve 6402H, West Lake Marmion, Annual Report, Report WA 275F, February 1978, unpublished report, WAMEX 7573.

AFMECO, 1978b, Yilgarn Drainage, Temporary Reserve 6402H, West Lake Marmion, Final Report, Report WA 275F, July 1978, unpublished report, WAMEX 7945.

Commander, D.P., Kern, A.M. and Smith, R.A., 1992, Hydrogeology of the Tertiary Palaechannels in the Kalgoorlie Region (Roe Palaeodrainage): Western Australia Geological Survey, Record 1991/10.

Johnson, S., Commander, D., and O’Boy, C., 1999, Groundwater resources of the Northern Goldfields, Western Australia: Western Australia Water and Rivers Commission, Hydrogeological Record Series, Report HG2, 57p.

Langford, R., 1997, Hydrogeology of part of the Rebecca Palaeodrainage between Lake Ballard and Lake Marmion in the northeastern Goldfields of Western Australia, unpublished thesis for Master of Science (Applied Geology) at Curtin University.

Nickleore Ltd., 2008, E29/634 (Lake Marmion), 2008 Annual Report, 12 April 2007 to 11 April 2008, unpublished report, WAMEX 79044.

Nidagal, V., 1992, Lake Ballard palaeodrainage groundwater investigation bore completion reports, Western Australia Geological Survey, Hydrogeology Report 1989/18, unpublished.

Siburan Resources, 2011a, Lake Marmion Project, Annual Report, Exploration Licence E29/756, Western Australia, Reporting period 19 August 2010 to 18 August 2011, unpublished report, WAMEX 91660.

Siburan Resources, 2011b, Lake Marmion Project, Annual Report, Exploration Licence E29/757, Western Australia, Reporting period 18 November 2010 to 17 November 2011, unpublished report, WAMEX 92276.

Siburan Resources, 2011c, Gravity surveys outline new uranium prospective paleochannels at Lake Marmion Project, ASX announcement.

Siburan Resources, 2012, Lake Marmion Project, Annual Report, Exploration Licences E29/637, E29/756-757, E29/773, E29/778-780, E29/782, E31/939-940, E31/976-977, Reporting period 5 July 2011 to 4 July 2012, unpublished report, WAMEX 95065.

Uranoz Ltd., 2007a, Goongarrie Project, E59/598, Annual Technical Report, Period Ending November 14, 2007: Report prepared by Mark Gordon of Gondor Geoconsult Pty Ltd in December 2007, unpublished report, WAMEX 76809.

Uranoz Ltd., 2007b, Goongarrie Project, E59/599, Annual Technical Report, Period Ending December 18, 2007: Report prepared by Mark Gordon of Gondor Geoconsult Pty Ltd in December 2007, unpublished report, WAMEX 76810.

Uranoz Ltd., 2007c, Goongarrie Project, E59/600, Annual Technical Report, Period Ending December 18, 2007: Report prepared by Mark Gordon of Gondor Geoconsult Pty Ltd in December 2007, unpublished report, WAMEX 76811.

LAKE MINIGWAL

Previous Exploration

Geology

Hydrogeology

References

Camuco Pty Ltd, 2008, Annual Report for the Minigwal Project comprising ELs 39/1185, 39/1186, 39/1187, unpublished report, WAMEX A77594.

Granny Smith Mines, 1999, Lake Carey Project, E38/447, E38/448, E38/457, E39/387, E39/389 & E39/483, Mount Margaret Mineral Field, Western Australia, Sixth Annual Report on Exploration, Period ending 30th June 1999, Ref: M7959, unpublished report, WAMEX A59288.

Uranerz Pty Ltd, 1983, Final report on Exploration Licence 38/13, Rason Lake Area, Western Australia, Covering the Period 30 March 1983 to 4 November 1983, unpublished report, WAMEX A12985.

Uranerz Pty Ltd, 1987, Surrender Report on Exploration Licence 39/87, Lake Minigwal, Western Australia, Covering the period 23 March 1986 to 22 March 1987, unpublished report, WAMEX A20809.

LAKE NOONDIE

Previous Exploration

Geology

Hydrogeology

References

Hemisphere Resources Ltd., 2010, Combined reporting group C61/2009, Bulga Downs Project, Exploration Licences E57/720, E57/721, E57/722, E57/762, E57/763, E57/781 and E57/782, Western Australia, Annual Report for the year ended 13 April 2010, unpublished report, WAMEX A87235.

Hemisphere Resources Ltd., 2011, Combined reporting group C61/2009, Bulga Downs Project, Exploration Licences E57/720, E57/721, E57/722, E57/762, E57/763, E57/781 and E57/782, Western Australia, Annual Report for the year ended 13 April 2011, unpublished report, WAMEX A90598.

Johnson, S., Commander, D., and O’Boy, C., 1999, Groundwater resources of the Northern Goldfields, Western Australia: Western Australia Water and Rivers Commission, Hydrogeological Record Series, Report HG2, 57p.

Mindax Ltd, 2008, Lake Noondie Project, Combined Annual Report for Exploration Licenses E57/602 (Lake Noondie West), E57/603 (Lake Noondie East) and E57/619 (Bill Well), Black Range District, East Murchison Mineral Field for the period 1st January 2007 and 31st December 2007, unpublished report, WAMEX A77744.

LAKE RAESIDE

Previous Exploration

Geology

Hydrogeology

References

Johnson, S., Commander, D., and O’Boy, C., 1999, Groundwater resources of the Northern Goldfields, Western Australia: Western Australia Water and Rivers Commission, Hydrogeological Record Series, Report HG2, 57p.

LAKE WAY

Previous Exploration

Geology

Hydrogeology

References

AGC Woodward-Clyde Pty Ltd, 1992, Mt Keith Process Water Supply, Lake Way Area, Volume 1, Contained within WMC Resources, Partial Surrender Report for the period 8 December 1992 to 7 December 1995, unpublished report, WAMEX A48586.

 

 

Tenements

The GSLP tenements are detailed in the Table below:

Project

Status

License Number

Area       (km2)

Term

Grant Date

Date of First Relinquish-ment

Interest

Western Australia

Lake Wells

Central

Granted

E38/2710

192.2

5 years

05-Sep-12

4-Sep-17

100%

South

Granted

E38/2821

131.5

5 years

19-Nov-13

18-Nov-18

100%

North

Granted

E38/2824

198.2

5 years

04-Nov-13

3-Nov-18

100%

Outer East

Granted

E38/3055

298.8

5 years

16-Oct-15

16-Oct-20

100%

Single Block

Granted

E38/3056

3.0

5 years

16-Oct-15

16-Oct-20

100%

Outer West

Granted

E38/3057

301.9

5 years

16-Oct-15

16-Oct-20

100%

North West

Granted

E38/3124

39.0

5 years

30-Nov-16

29-Nov-21

100%

West

Granted

L38/262

113.0

20 years

3-Feb-17

2-Feb-38

100%

East

Granted

L38/263

28.6

20 years

3-Feb-17

2-Feb-38

100%

South West

Granted

L38/264

32.6

20 years

3-Feb-17

2-Feb-38

100%

South

Application

L38/287

95.8

100%

South Western

Granted

E38/3247

350.3

5 years

25-Jan-18

24-Jan-23

100%

South

Application

M38/1278

87.47

100%

Lake Ballard

West

Granted

E29/912

607.0

5 years

10-Apr-15

10-Apr-20

100%

East

Granted

E29/913

73.2

5 years

10-Apr-15

10-Apr-20

100%

North

Granted

E29/948

94.5

5 years

22-Sep-15

21-Sep-20

100%

South

Granted

E29/958

30.0

5 years

20-Jan-16

19-Jan-21

100%

South East

Granted

E29/1011

68.2

5 years

11-Aug-17

10-Aug-22

100%

South East

Granted

E29/1020

9.3

5 years

21-Feb-18

20-Feb-23

100%

South East

Granted

E29/1021

27.9

5 years

21-Feb-18

20-Feb-23

100%

South East

Granted

E29/1022

43.4

5 years

21-Feb-18

20-Feb-23

100%

Lake Irwin

West

Granted

E37/1233

203.0

5 years

08-Mar-16

07-Mar-21

100%

Central

Granted

E39/1892

203.0

5 years

23-Mar-16

22-Mar-21

100%

East

Granted

E38/3087

139.2

5 years

23-Mar-16

22-Mar-21

100%

North

Granted

E37/1261

107.3

5 years

14-Oct-16

13-Oct-21

100%

Central East

Granted

E38/3113

203.0

5 years

14-Oct-16

13-Oct-21

100%

South

Granted

E39/1955

118.9

5 years

14-Oct-16

13-Oct-21

100%

North West

Application

E37/1260

203.0

100%

South West

Application

E39/1956

110.2

100%

Lake Minigwal

West

Granted

E39/1893

246.2

5 years

01-Apr-16

31-Mar-21

100%

East

Granted

E39/1894

158.1

5 years

01-Apr-16

31-Mar-21

100%

Central

Granted

E39/1962

369.0

5 years

8-Nov-16

7-Nov-21

100%

Central East

Granted

E39/1963

93.0

5 years

8-Nov-16

7-Nov-21

100%

South

Granted

E39/1964

99.0

5 years

8-Nov-16

7-Nov-21

100%

South West

Application

E39/1965

89.9

100%

Lake Way

Central

Granted

E53/1878

217.0

5 years

12-Oct-16

11-Oct-21

100%

South

Application

E53/1897

77.5

100%

Lake Marmion

North

Granted

E29/1000

167.4

5 years

03-Apr-17

02-Apr-22

100%

Central

Granted

E29/1001

204.6

5 years

03-Apr-17

02-Apr-22

100%

South

Granted

E29/1002

186.0

5 years

15-Aug-17

14-Aug-22

100%

West

Granted

E29/1005

68.2

5 years

11-Jul-17

10-Jul-22

100%

Lake Noondie

North

Application

E57/1062

217.0

100%

Central

Application

E57/1063

217.0

100%

South

Application

E57/1064

55.8

100%

West

Application

E57/1065

120.9

100%

East

Application

E36/932

108.5

100%

Lake Barlee

North

Application

E49/495

217.0

100%

Central

Granted

E49/496

220.1

5 years

17-Dec-17

16-Dec-22

100%

South

Granted

E77/2441

173.6

5 years

09-Oct-17

08-Oct-22

100%

Lake Raeside

North

Application

E37/1305

155.0

100%

Northern Territory

Lake Lewis

South

Granted

EL 29787

146.4

6 years

08-Jul-13

7-Jul-19

100%

North

Granted

EL 29903

125.1

6 years

21-Feb-14

20-Feb-19

100%

 

Competent Persons Statement

The information in this report that relates to Exploration Results, Exploration Targets or Mineral Resources is based on information compiled by Mr Ben Jeuken, who is a member Australian Institute of Mining and Metallurgy. Mr Jeuken is employed by Groundwater Science Pty Ltd, an independent consulting company. Mr Jeuken has sufficient experience, which is relevant to the style of  mineralisation and type of deposit under consideration and to the activity, which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr Jeuken consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.

Forward Looking Statements

This announcement may include forward-looking statements. These forward-looking statements are based on Salt Lake’s expectations and beliefs concerning future events. Forward looking statements are necessarily subject to risks, uncertainties and other factors, many of which are outside the control of Salt Lake, which could cause actual results to differ materially from such statements. Salt Lake makes no undertaking to subsequently update or revise the forward-looking statements made in this announcement, to reflect the circumstances or events after the date of that announcement.

 

APPENDIX 2A – LAKE RAESIDE BRINE CHEMISTRY ANALYSIS

HOLE ID

East

North

From

 (m)

To

(m)

K

(mg/L)

Cl

(mg/L)

Na

(mg/L)

Ca

(mg/L)

Mg

(mg/L)

SO4

(mg/L)

TDS

(g/L)

S700001

315501

6807912

0

1

2,270

138,200

82,000

1,020

5,420

10400

241

S700005

311513

6809765

0

1

1,440

73,000

44,000

1,500

3,390

8400

133

S700007

307959

6811061

0

1

2,180

115,350

68,700

1,060

5,330

11500

208

S700011

300035

6813662

0

1

2,240

149,850

87,900

603

8,690

17600

273

S700013

278641

6810996

0

1

3,140

167,950

96,900

409

12,400

27400

317

S700015

281725

6810666

0

1

950

55,550

34,100

600

3,130

8730

104

S700017

287751

6812747

0

1

2,230

124,500

74,100

789

6,510

15400

228

APPENDIX 2B – LAKE NOONDIE BRINE CHEMISTRY ANALYSIS

HOLE ID

East

North

From

 (m)

To

(m)

K

(mg/L)

Cl

(mg/L)

Na

(mg/L)

Ca

(mg/L)

Mg

(mg/L)

SO4

(mg/L)

TDS

(g/L)

N700004

713808

6828889

0

1

2,630

131,000

78,600

785

5,310

13,700

232

N700008

720566

6832676

0

1

2,350

125,050

75,300

822

5,230

13,900

223

N700010

727256

6836907

0

1

2,390

125,050

75,400

796

4,950

14,300

222

N700012

734532

6837014

0

1

2,740

130,150

80,400

821

4,370

13,400

231

N700014

740408

6837916

0

1

2,030

121,050

71,500

802

5,330

12,900

212

N700016

741574

6840505

0

1

1,900

92,800

54,900

522

3,700

8,640

162

N700018

750994

6847653

0

1

2,340

135,400

76,600

754

5,870

14,200

234

N700020

754948

6851513

0

1

2,470

111,750

67,700

949

4,240

12,100

197

N700022

765001

6857294

0

1

2,600

128,550

73,600

1,050

4,810

10,200

222

N700024

781493

6855076

0

1

2,030

101,200

58,600

1,390

3,800

8,490

172

APPENDIX 2C – LAKE MINIGWAL BRINE CHEMISTRY ANALYSIS

HOLE ID

East

North

From

 (m)

To

(m)

K

(mg/L)

Cl

(mg/L)

Na

(mg/L)

Ca

(mg/L)

Mg

(mg/L)

SO4

(mg/L)

TDS

(g/L)

M700002

462878

6753653

0

1

1,900

154,200

96,600

706

5,900

14,300

267

M700004

465178

6751680

0

1

2,160

168,450

104,000

658

5,710

12,900

288

M700006

516470

6735650

0

1

2,270

143,150

89,300

523

7,210

23,000

261

M700008

518949

6731636

0

1

1,850

138,950

87,100

594

7,580

20,500

250

M700010

520783

6728495

0

1

1,990

145,100

91,700

499

8,110

24,300

267

M700011

477839

6749646

0

1

2,470

176,750

106,000

539

7,030

15,700

311

M700013

482455

6738102

0

1

2,610

165,500

103,000

310

7,290

31,800

323

M700015

488600

6734506

0

1

2,040

126,450

75,300

648

6,120

19,200

237

M700017

507653

6736762

0

1

1,750

134,000

79,600

526

8,160

23,200

257

M700019

527552

6726613

0

1

1,750

149,850

84,800

549

7,890

18,300

274

M700023

505953

6742473

0

1

3,810

167,750

92,400

375

11,700

26,700

316

M700025

509570

6745818

0

1

2,850

151,400

80,300

456

10,900

23,900

285

M700027

504869

6753891

0

1

3,800

133,450

78,800

500

7,990

24,900

259

M700029

504869

6753891

0

1

3,740

149,300

82,700

402

12,500

32,100

292

 

APPENDIX 2D – LAKE BARLEE BRINE CHEMISTRY ANALYSIS

HOLE ID

East

North

From

 (m)

To

(m)

K

(mg/L)

Cl

(mg/L)

Na

(mg/L)

Ca

(mg/L)

Mg

(mg/L)

SO4

(mg/L)

TDS

(g/L)

E700003

766001

6706841

0

1

1920

146800

81100

726

8180

13400

250500

E700005

764573

6716740

0

1

1680

145950

81500

677

8470

14200

250900

E700011

761574

6746205

0

1

1720

132450

78700

1000

5680

10900

228850

E700013

754538

6747013

0

1

1150

93300

54500

477

3890

7200

158200

E700017

758045

6747653

0

1

1400

98400

59000

978

3480

7680

169350

E700021

737684

6727502

0

1

860

65750

38800

554

3110

6060

113950

E700023

742095

6731966

0

1

1460

129100

76900

990

5400

11000

223650

APPENDIX 2E – LAKE WAY BRINE CHEMISTRY ANALYSIS

“Lake Way” series Chemistry data extracted from AGC Woodward-Clyde Pty Ltd, 1992, Mt Keith Process Water Supply, Lake Way Area, Volume 1, Contained within WMC Resources, Partial Surrender Report for the period 8 December 1992 to 7 December 1995, unpublished report, WAMEX A48586.

HOLE ID

Aquifer

East

North

K

(mg/L)

Cl

(mg/L)

Na

(mg/L)

Ca

(mg/L)

Mg

(mg/L)

SO4

(mg/L)

TDS

(g/L)

Lake Way 2/4

Paleochannel

255050

7020250

5,200

120,000

68,000

600

6,700

6,700

220

Lake Way 3/4

Paleochannel

247700

7032150

6,300

130,000

83,000

520

8,200

8,200

260

Lake Way 3/5

Paleochannel

247700

7032150

3,400

75,000

49,000

510

5,000

5,000

160

Lake Way 3/14

Paleochannel

245050

7029800

5,300

130,000

70,000

440

7,400

7,400

240

Lake Way 5/6

Paleochannel

241750

7035300

6,100

130,000

77,000

570

7,000

7,000

240

Lake Way 2/4

Clay

255050

7020250

3,800

78,000

49,000

930

3,400

3,400

150

Lake Way 2/6

Clay

254250

7019550

3,400

64,000

38,000

1,100

2,500

2,500

120

Lake Way 2/7

Clay

253300

7018850

3,000

56,000

37,000

930

2,900

2,900

120

Lake Way 3/1

Clay

248420

7032900

1,500

42,000

28,000

450

3,400

3,400

88

Lake Way 3/4

Clay

247700

7032150

2,200

49,000

31,000

750

3,900

3,900

110

Lake Way 5/7

Clay

242800

7034250

6,000

130,000

73,000

510

7,100

7,100

240

Y700002

Surficial

237500

7031600

8,110

149,750

86,800

359

8,930

30,600

288

Y700004

Surficial

235968

7036128

6,950

124,750

74,200

503

7,280

28,000

240

Y700006

Surficial

237015

7039115

6,980

132,800

79,200

445

8,470

31,800

258

Y700008

Surficial

240508

7036136

6,440

142,100

78,300

407

12,000

33,000

274

Y700010

Surficial

241352

7031891

7,210

127,200

72,800

593

6,630

22,500

238

Y700012

Surficial

241855

7026999

7,090

114,750

67,000

638

5,450

21,900

216

Y700020

Surficial

245022

7027585

6,930

123,700

73,000

624

6,440

22,100

231

Y700022

Surficial

246105

7024796

5,160

109,300

59,700

803

6,670

17,300

201

APPENDIX 3 – JORC TABLE ONE

Section 1: Sampling Techniques and Data

Criteria

JORC Code explanation

Commentary

Sampling techniques

Nature and quality of sampling (eg cut channels, random chips, or specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as down hole gamma sondes, or handheld XRF instruments, etc). These examples should not be taken as limiting the broad meaning of sampling.

Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used.

Aspects of the determination of mineralisation that are Material to the Public Report.

In cases where ‘industry standard’ work has been done this would be relatively simple (eg ‘reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assay’). In other cases more explanation may be required, such as where there is coarse gold that has inherent sampling problems. Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information.

Sampling was undertaken using test pits excavated into the playa surface to a depth of approximately 1m.

Drilling techniques

Drill type (eg core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple or standard tube, depth of diamond tails, face-sampling bit or other type, whether core is oriented and if so, by what method, etc).

Not Applicable

Drill sample recovery

Method of recording and assessing core and chip sample recoveries and results assessed.

Measures taken to maximise sample recovery and ensure representative nature of the samples. Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential loss/gain of fine/coarse material.

Brine samples were obtained from all test pits

Logging

Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies.

Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc) photography.

The total length and percentage of the relevant intersections logged.

All pits were geologically logged by a qualified geologist, noting moisture content of sediments, lithology, colour, induration, grainsize, matrix and structural observations. A digital drill log was developed specifically for this project.

Sub-sampling techniques and sample preparation

If core, whether cut or sawn and whether quarter, half or all core taken.

If non-core, whether riffled, tube sampled, rotary split, etc and whether sampled wet or dry.

For all sample types, the nature, quality and appropriateness of the sample preparation technique.

Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples.

Measures taken to ensure that the sampling is representative of the in situ material collected, including for instance results for field duplicate/second-half sampling.

Whether sample sizes are appropriate to the grain size of the material being sampled.

Geological logs are recorded in the field based on inspection of cuttings. Geological samples are retained for each hole in archive.

Sub-sampling was not undertaken.

Sample bottles are rinsed with brine which is discarded prior to sampling.

All brine samples taken in the field are split into three sub-samples: primary, potential duplicate, and archive.

Quality of assay data and laboratory tests

The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total.

For geophysical tools, spectrometers, handheld XRF instruments, etc, the parameters used in determining the analysis including instrument make and model, reading times, calibrations factors applied and their derivation, etc.

Nature of quality control procedures adopted (eg standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established.

Primary samples were sent to Bureau Veritas Minerals Laboratory, Perth. 

Brine samples were analysed using ICP-AES for K, Na, Mg, Ca, with chloride determined by Mohr titration and alkalinity determined volumetrically. Sulphate was calculated from the ICP-AES sulphur analysis

 

Verification of sampling and assaying

The verification of significant intersections by either independent or alternative company personnel.

The use of twinned holes.

Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols.

Discuss any adjustment to assay data.

Data entry is done in the field to minimise transposition errors.

Brine assay results are received from the laboratory in digital format to prevent transposition errors and these data sets are subject to the quality control described above.

Independent verification of significant intercepts was not considered warranted given the relatively consistent nature of the brine.

Location of data points

Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys), trenches, mine workings and other locations used in Mineral Resource estimation.

Specification of the grid system used.

Quality and adequacy of topographic control.

Hole co-ordinates were captured using hand held GPS.

Coordinates were provided in GDA 94_MGA Zone 51.

Topographic control is obtained using Geoscience Australia’s 3-second digital elevation product.

Topographic control is not considered critical as the salt lakes are generally flat lying and the water table is taken to be the top surface of mineralisation.

Data spacing and distribution

Data spacing for reporting of Exploration Results.

Whether the data spacing and distribution is sufficient to establish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied.

Whether sample compositing has been applied.

Data spacing is variable and is not on an exact grid due to the irregular nature of the salt lake shape and difficulty obtaining access to some part of the salt lake.

 

Orientation of data in relation to geological structure

Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known, considering the deposit type.

If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias, this should be assessed and reported if material.

Not Applicable

Sample security

The measures taken to ensure sample security.

All brine samples were marked and kept onsite before transport to the laboratory.

 All remaining sample and duplicates are stored in the Perth office in climate-controlled conditions.

Chain of Custody system is maintained.

Audits or reviews

The results of any audits or reviews of sampling techniques and data.

Data review is summarised in Quality of assay data and laboratory tests and Verification of sampling and assaying. No audits were undertaken.

Section 2: Reporting of Exploration Results

Criteria

JORC Code explanation

Commentary

Mineral tenement and land tenure status

Type, reference name/number, location and ownership including agreements or material issues with third parties such as joint ventures, partnerships, overriding royalties, native title interests, historical sites, wilderness or national park and environmental settings.

The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area.

 

Details are presented in the report.

 

Exploration done by other parties

Acknowledgment and appraisal of exploration by other parties.

Details are presented in the report.

 

Geology

Deposit type, geological setting and style of mineralisation.

Salt Lake Brine Deposit

 

 

 

 

 

Drill hole Information

A summary of all information material to the understanding of the exploration results including a tabulation of the following information for all Material drill holes:

o   easting and northing of the drill hole collar

o   elevation or RL (Reduced Level – elevation above sea level in metres) of the drill hole collar

o   dip and azimuth of the hole

o   down hole length and interception depth

o   hole length.

If the exclusion of this information is justified on the basis that the information is not Material and this exclusion does not detract from the understanding of the report, the Competent Person should clearly explain why this is the case.

Details are presented in the report.

 

 

Data aggregation methods

In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated.

Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results, the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail.

The assumptions used for any reporting of metal equivalent values should be clearly stated.

Details are presented in the report.

 

Relationship between mineralisation widths and intercept lengths

These relationships are particularly important in the reporting of Exploration Results.

If the geometry of the mineralisation with respect to the drill hole angle is known, its nature should be reported.

If it is not known and only the down hole lengths are reported, there should be a clear statement to this effect (eg ‘down hole length, true width not known’).

The brine resource is inferred to be consistent and continuous through the full thickness of the sediments.

Diagrams

Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include, but not be limited to a plan view of drill hole collar locations and appropriate sectional views.

Addressed in the announcement.

Balanced reporting

Where comprehensive reporting of all Exploration Results is not practicable, representative reporting of both low and high grades and/or widths should be practiced to avoid misleading reporting of Exploration Results.

All results have been included.

Other substantive exploration data

Other exploration data, if meaningful and material, should be reported including (but not limited to): geological observations; geophysical survey results; geochemical survey results; bulk samples – size and method of treatment; metallurgical test results; bulk density, groundwater, geotechnical and rock characteristics; potential deleterious or contaminating substances.

All material exploration data reported.

Further work

The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling).

Diagrams clearly highlighting the areas of possible extensions, including the main geological interpretations and future drilling areas, provided this information is not commercially sensitive.

Aircore / RC drilling to defined paleovalley structure and provide brine samples with depth.

Hydraulic testing be undertaken, for instance pumping tests from bores and/or trenches to determine, aquifer properties, expected production rates and infrastructure design (trench and bore size and spacing).

Diamond Core drilling to obtain sample for porosity determination.

Lake recharge dynamics be studied to determine the lake water balance and subsequent production water balance. For instance, simultaneous data recording of rainfall and subsurface brine level fluctuations to understand the relationship between rainfall and lake recharge, and hence the brine recharge dynamics of the lake.

 

For further information please visit www.saltlakepotash.com.au or contact:

Matt Syme/Sam Cordin

Salt Lake Potash Limited

Tel: +61 8 9322 6322

Jo Battershill

Salt Lake Potash Limited

Tel: +44 (0) 20 7478 3900

Colin Aaronson/Richard Tonthat

Grant Thornton UK LLP (Nominated Adviser)

Tel: +44 (0) 20 7383 5100

Derrick Lee/Beth McKiernan

Cenkos Securities plc (Joint Broker)

Tel: +44 (0) 131 220 6939

Jerry Keen/Toby Gibbs

 

Shore Capital (Joint broker)

Tel: +44 (0) 20 7468 7967

 

  


[1] Bell et al, 2012, WASANT Paleovalley Map – Distribution of Palaeovalley in Arid and Semi-arid WA-SA-NT. Geoscience Australia Thematic Map.

[2] Johnson, S.L., Commander, D.P., and O’Boy, C.A. 1999, Groundwater resources of the Northern Goldfields, Western Australia: Water and Rivers Commission, Hydrogeological Record Series, Report HG 2, 57p.

[3] DeBroekert and Sandiford (2005), Buried Inset-Valleys in the Eastern Yilgarn Craton, Western Australia: Geomorphology, Age, and Allogenic Control. The Journal of Geology, 2005, volume 113, p. 471-493

[4] http://www.ga.gov.au/scientific-topics/hazards/flood/wofs

[5] Johnson, (2007) Groundwater abstraction and aquifer response in the Roe Palaeodrainage (1990-2001). Department of Water Hydrogeological Record Series Report HG23 October 2007

[6] Bowler, J.M., 1986. Spatial variability and hydrologic evolution of Australian lake basins: analogues for Pleistocene hydrologic change and evaporite formation. Palaeogeography, Palaeoclimatology, Palaeoecology, 54, 21-41.

Salt Lake Potash #SO4 – December 2017 Quarterly Report

The Board of Salt Lake Potash Limited (the Company or SLP) is pleased to present its Quarterly Report for the period ending 31 December 2017.

Highlights for the quarter and subsequently include:

LAKE WELLS

Evaporation Pond Testwork

Ø  The Company successfully completed field testing of its on-lake, unlined evaporation pond model, which will result in significant capital cost advantages for the Goldfields Salt Lakes Project (GSLP).

Ø  Comprehensive geological and geotechnical investigation confirms the widespread availability of ideal in-situ clay materials ideal for use in evaporation pond construction. Modelling based on geotechnical properties of the clays confirms the potential to build unlined, on-lake ponds with negligible seepage inefficiency.

Ø  Amec Foster Wheeler estimate that comparative costs for 400ha of on-lake ponds are $1.6m (unlined) and $42.2m (HDPE lined), highlighting a significant capex advantage for the Project.

Process Testwork

Ø  The Site Evaporation Trial (SET) at Lake Wells has now processed approximately 357 tonnes of brine and produced over 8 tonnes of harvest salts.

Ø  The Company continued process development testwork at globally recognised potash process consultants, Saskatchewan Research Council (SRC). SRC began a continuous locked cycle testing of the proposed Lake Wells process to demonstrate the Sulphate of Potash (SOP) production process from salt harvested from the SET.

Ø  The SRC locked cycle tests will also produce significant quantities of flotation product and SOP for further testing and marketing.

Surface Aquifer Characterisation and Deep Aquifer Exploration

Ø The Company continued sustained pump tests on test trenches across Lake Wells, providing reliable data for the surface aquifer hydrogeological model.

Ø The Company completed an on-lake drill program to test deep aquifer characteristics and identify potential high yield portions of the basal aquifer.

Demonstration Plant

Ø  The Company and its consultants have substantially advanced the Demonstration Plant study for the GSLP.

LAKE IRWIN

Ø  An initial surface aquifer exploration program was completed at Lake Irwin, comprising a total of 27 shallow test pits and 2 test trenches. This work provides preliminary data for the geological and hydrological models of the surface aquifer of the Lake, as well as brine, geological and geotechnical samples.

LAKE WAY

Ø  The Company conducted an initial reconnaissance surface sampling program at Lake Way in November 2017, with brine samples averaging 15kg/m3 of SOP equivalent. In conjunction with extensive historical exploration data, these results indicate excellent potential for Lake Way to host a large high-grade SOP brine resource.

REGIONAL LAKES

Ø  The Company undertook initial surface brine sampling of the near surface aquifer and reconnaissance of access and infrastructure at all remaining Lakes held under the GSLP.

The Company’s primary focus is to construct a Demonstration Plant at the GSLP, intended to be the first salt-lake brine SOP production operation in Australia. While proceeding with the analysis of options to construct a SOP Demonstration Plant at Lake Wells, the Company is also exploring the other lakes in the GSLP.

GOLDFIELDS SALT LAKES PROJECT

The Company’s primary focus is to construct a Demonstration Plant at the GSLP, intended to be the first salt-lake brine SOP production operation in Australia. While proceeding with the analysis of options to construct a SOP Demonstration Plant at Lake Wells, the Company is also exploring the other lakes in the GSLP.

The Company achieved a very important milestone of completing successful validation of the final major technical foundations for production of Sulphate of Potash (SOP) from the GSLP.

While proceeding with a Pre-Feasibility Study (PFS) for Lake Wells, the Company has also completed initial surface sampling and reconnaissance work across all of the other regional Lakes in the GSLP.

The GSLP’s lakes have been selected for:

·     scale and potential brine volume;

·     known hypersaline brine characteristics;

·     potential for both shallow trench extraction and from deeper paleochannel aquifer bores;

·     large playa surface for cost-effective evaporation pond construction; and

·     proximity to the important transport and energy infrastructure and engineering expertise available in the Western Australian Goldfields.

While all of the lakes comprising the GSLP share the advantage of their location in the WA Goldfields, it is worth noting that several of the lakes are even closer to rail transport and the gas pipeline than Lake Wells. For example, Lake Ballard and Lake Marmion are located either side of the Goldfields Highway, gas pipeline and rail line, only 140km from the major mining service centre of Kalgoorlie.

There is substantial potential for integration, economies of scale, operating synergies and overhead sharing in the GSLP due to the number of highly prospective lakes. The flexibility of multi-lake production is also appealing for a natural production process which is subject to climate variability.

The Company will study these advantages more closely as it progresses the Goldfields Salt Lakes Project.

LAKE WELLS

Evaporation Ponds Construction Trial

The Company completed an evaporation pond construction trial at Lake Wells. The field trial involved construction and testing of four test ponds on the Lake Wells Playa, built solely from in-situ clay materials, using a standard 30t excavator, which operated efficiently and effectively on the lake playa. The trial achieved levels of brine seepage from the evaporation ponds well below the threshold for successful operation of halite evaporation ponds, and potentially also for the smaller potassium salt harvest ponds. (for complete details see Stock Exchange announcement dated 16 October 2017)

The capex savings from this construction method are substantial, compared to the alternative of plastic lined ponds. SLP’s engineering consultant, Amec Foster Wheeler, estimates the cost of lined ponds to be approximately $10.50 per m2, up to 25 times higher than construction costs for unlined ponds.

The 25m x 25m test ponds were designed by SLP’s geotechnical consultant, MHA Geotechnical (MHA), to test the constructability and operating performance of a number of pond wall designs and to provide reliable seepage data under site conditions. The observed brine loss in the test ponds was well within the parameters of the hydrodynamic model, indicating losses for a 400ha pond will be below 0.125mm/day.

The Company has identified several opportunities to improve the construction of commercial scale ponds using excavators, along with ancillary equipment to optimize drying and compaction of the clays utilized in pond wall construction. This should result in further improvements in the already very low seepage observed in the trial sized ponds.

SLP plans to now construct a Pilot scale pond system to further improve the pond design and construction model.

Test Pond Results

Test Pond 3 (TP3) represents the as-modelled embankment construction and is the most likely design for commercial scale embankments. A total of 32 piezometric standpipes and 12 water data loggers were installed in and around all four walls of TP3, along with water level measuring devices on the floor of the pond and in the surrounding trenches, to accurately measure the water levels both in the pond and within the embankments.

The embankment and key are constructed from clay which was air-dried prior to compaction to ensure target compaction and permeability are achieved.  After the embankment and key material is saturated, the seepage from the pond, net of brine evaporation (data from the control pond) represents seepage losses through and below the pond walls. Net seepage losses of less than 3mm per day at test pond scale would substantially validate the shallow lake lithology, geotechnical characteristics and pond construction model for production scale, clay lined, on-lake halite evaporation ponds.

TP3 was initially filled with lake brine to approximately 500mm on 29 August 2017. The small, plastic lined, control pond was also filled to provide an accurate measure of evaporation rates.

Water level and piezometer readings were taken twice daily since and on 18 September 2017 the ponds were topped up, TP3 to approximately 1,000mm in this case, to accelerate wall saturation.

From the initial brine fill, the average net seepage at TP3 equated to approximately 2.4mm per day. This figure includes “losses” to wall saturation as well as to seepage, indicating that steady state seepage losses were comfortably below the 3mm per day threshold modelled for this scale of pond.

Capital Cost Comparison

The Company’s engineering consultants, Amec Foster Wheeler, generated scoping level cost estimates comparing two pond construction options for a 400ha halite pond. For ponds built on-lake on a relatively flat playa, with no provision for salt harvesting, and a 2.0m high wall, Amec Foster Wheeler estimate direct capital costs (accuracy of -10%/+30%) of:

·        Unlined –  A$1.6m

·        Lined – A$42.2m

The main costs of the lined ponds are the supply and installation of HDPE lining and placement and compaction of a sand bedding layer. If similar ponds were constructed off lake then clearing and levelling costs would be additional.

For either lined or unlined ponds, if salt harvesting is required a layer of halite must first be deposited and compacted, to provide a support base for harvesting equipment. As the Company does not plan to harvest halite from its ponds, these costs are not included in the Amec Foster Wheeler analysis.

Process Testwork

The Company continues a range of process development testwork to enhance the Lake Wells process model.

Site Evaporation Trial

A large scale, continuous Site Evaporation Trial (SET) at Lake Wells successfully completed 15 months of operation under site conditions and through all seasons, confirming the solar evaporation pathway for production of potassium rich harvest salts for processing into SOP. The objective of the SET was to refine process design criteria for the halite evaporation ponds and subsequent harvest salt ponds.

The SET has processed approximately 357 tonnes of Lake Wells brine and produced 8.1 tonnes of harvest salts.

The results of the SET are Australian first and have provided significant knowledge to the Company on the salt crystallisation pathway under site conditions in Australia.

During the quarter, approximately 122t of Lake Wells brine was processed through both trains of the SET, producing approximately 2,600kg of harvest salt at average potassium grades within target parameters. Production levels increased as the temperature (evaporation rates) increased with daily evaporation reaching levels of above 16mm/day.

The large quantity of salt produced via the SET is available for larger scale production of commercial samples for potential customers and partners around the world. 

Process Testwork –  Saskatchewan Research Council (SRC)

SRC has been engaged to carry out further optimisation tests to validate and duplicate the results achieved to date, followed by a locked-cycle continuous production test to quantify brine handling requirements and obtain product purity information on a continuous basis.

The locked-cycle test will also provide a significant quantity of flotation product to allow crystalliser vendor testing, design work, and product for testing and commercial purposes.

The locked-cycle testwork was completed in late December and final results will be available shortly.

Surface Aquifer Characterisation Program

The Company has completed a substantial program of work investigating the geological and hydrogeological attributes of the Shallow Lake Bed Sediment hosted brine resource at Lake Wells. The information and data generated will be utilised in the design of the brine extraction system for the GSLP Pilot Plant.

The total program includes 250 test pits and 10 trenches over the lake playa. The test pits are generally 1m wide x 1.5m long and 4.5m deep and confirm lithology and permeability of upper lake bed sediments and demonstrate spatial continuity of the surface aquifer.

Long Term Test Pumping

The Company continued sustained pump tests on test trenches across Lake Wells. This work provides reliable data for the preparation of a surface aquifer hydrogeological model for Lake Wells. 

The testing was conducted as a “constant head test” whereby flow rate was adjusted to maintain a constant trench water level. Drawdown was observed at nearby observation bores placed at distances of 10m, 20m and 50m from the trench.

Trench dimensions and pumping test results are presented in Table 1. Trench length varied from 25m to 125m length. Trench depth was constrained by the capacity of the excavator and the stability of the ground conditions and ranged from 2m to 6m below ground surface. Aquifer properties were estimated from the trench test data by calibration of a flow model for each trench.

Flow rates toward the end of testing ranged from 13 to 517m3/day. Higher flow rates are associated with evaporite deposits in the Playa Sediments.

These results are very encouraging and continue to support the design of the SOP operation at Lake Wells.

Trench
ID

Average Depth

Trench Length

Test Duration

Total Volume Pumped

Average Pumping Rate

Final Pumping Rate

Calculated
Transmi-ssivity

Calc.
Specific Yield

Brine Chemistry

(m)

(m)

(days)

(m3)

(m3/day)

(m3/day)

(m2/day)

(K mg/L)

P1a

4.5

25

8.3

557

65

54

13.5

0.10

– 

P1b

2

25

Not tested

P1c

4.5

50

7.3

673

170

127

96

0.07

5,673 

P1c

4.5

50

Long-term test in progress

P1e

3.5

125

25

1,878

105

82

24

0.13

5,600

P1g

4

10

9.6

199

21

21

26

0.28

4,620

P1h

6

125

Long-term test in progress

P2a

2.2

25

9.7

272

28

31

46

0.25

6,055

P2b

2.8

25

7

378

54

25

7

0.14

4,762

P2c

3.5

25

10

638

64

50

174

0.25

4,355

P3b

4

50

7

3,831

547

517

231

0.25

 4,311

P3c

4

50

10

95

13

13

1

0.14

 5,474

Table 1: Summary of Trench Test Pumping

Brine chemistry was consistent throughout the duration of the tests.

The Company is continuing extended pump tests on test trenches across Lake Wells with two long-term tests currently underway. These pumping tests will run for over 60 days to continue to validate the hydrology model and provide additional data on the draw down, recharge and brine concentration during extended pumping.

Deep Aquifer Exploration Program

During the quarter, an on-lake deep aquifer exploration diamond core drill program was undertaken, investigating paleochannel aquifer targets identified by geophysical survey. The results will provide further understanding of the characteristics of the paleochannel aquifer and identified locations for further test pumping bores to advance and refine the Lake Wells hydrogeological model.

Five observation bores ranging between 42m and 130m deep were completed across the Lake. The bores were constructed with 80mm PVC casing (internal diameter) through the paleochannel sediments to enable more investigations such as airlifting tests and possible downhole geophysical surveys.

The bores encountered the expected sequence of surficial alluvium to an average depth of 20m followed by up to 70m thick sequence of lacustrine clays before intersecting the paleochannel sediments. Some of the bores were targeted to drill through the paleochannel sediments into the Proterozoic Basement where it was fractured by geological faults.

The drilling results indicated that the modelled gravimetric and passive seismic interpretations were very accurate in locating the elevation of the basement as well as confirming the shape of the paleochannel. The addition of the airborne magnetic lineaments indicated zones where the basement underlying the paleochannel is weathered and fractured by faulting. This provided good targets to drill through the paleochannel sediments into the fractured basement.

Airlift testing of the observation bores is underway with the purpose of measuring aquifer properties.

Demonstration Plant

As previously announced, Amec Foster Wheeler have been engaged to prepare an analysis of the alternatives for the Company to construct a Demonstration Plant at the GSLP.

International brine and salt processing experts Carlos Perucca Processing Consulting Ltd (CPPC) and AD Infinitum Ltd (AD Infinitum) are also engaged for the Study.

Substantial progress continues on pond and trench design, mass balance modelling, process flowsheet design, major equipment quotations, costings and transportation studies.

LAKE IRWIN

Surface Aquifer Exploration Program

An initial surface aquifer exploration program was undertaken at Lake Irwin, comprising a total of 27 test pits and 2 test trenches. The test trenches were 100m long and constructed to a depth of 4-5 meters.

This work provides preliminary data for the hydrogeological model for the surface aquifer of the Lake, geological and geotechnical information for the upper strata of the Lake and deeper brine samples than previously available.

The 27 test pits completed across both the north and south of Lake Irwin. The geology and associated hydrology of the shallow (recent lacustrine) sediments is similar to that identified at Lake Wells.

A surface layer (up to 0.8m thick) of evaporitic (crystallised gypsum) sand typically overlies a red clay unit that is up to several meters thick. Thin beds and lenses of evaporitic sand also tended to exist at various depths within the red clay unit.  Rapid inflow of brine occurred into the test pits and trenches from the surface, evaporitic sand unit and from the beds and lenses within the lower clay unit.

Bedded silica sands were identified at depths greater than two meters in the Northern lobe of the lake. Rapid inflow of brine was observed from this underlying, inferred fluvial (riverine) unit. This unit is very encouraging for future exploration programs.

Brine was sampled during the excavation process. Potassium grades from 26 assays from the test pits ranged from 1,550 to 3,290mg/L. The data are presented as Appendix 4.

Number of Samples

K

(mg/L)

Mg

(mg/L)

SO4

(mg/L)

SOP*
Equivalent

(kg/m3)

Northern Lobe

4

3,033

5,760

22,650

6.76

Southern Lobe

22

2,102

2,725

11,012

4.69

* Conversion factor of K to SOP (K2SO4 equivalent) is 2.23

Table 2: Lake Irwin Brine Chemistry split between the Northern and Southern Lobes

Four large geotechnical samples of 20kg each were taken from the main identified aquifer units. These samples will be processed to assess geotechnical and hydrogeological parameters for the different geological units in the profile, continuing the Company’s assessment of brine extraction potential via trenching, as well as assessing the suitability of the clay lithologies for pond construction. Initial visual interpretation during the excavation process indicated excellent stratigraphy and geotechnical potential similar to results at Lake Wells.

LAKE WAY

Reconnaissance and Pit Sampling Program

The Company conducted an initial reconnaissance surface sampling program at Lake Way in November 2017. A total of 8 pit samples were collected at Lake Way encountering brine at a standing water level from less than 1 metre from surface. The average brine chemistry of the samples was:

Brine Chemistry

K

Mg

SO4

TDS

SOP*
Equivalent

(mg/L)

(mg/L)

(mg/L)

(mg/L)

(kg/m3)

Surface Sampling (average 8 samples)

6,859

7,734

25,900

243,000

15.25

* Conversion factor of K to SOP (K2SO4 equivalent) is 2.23

Table 3: Lake Way Brine Chemistry from Surface Sampling

Exploration History

Significant historical exploration work has been completed in the Lake Way area focusing on nickel, gold and uranium. The Company has reviewed multiple publicly available documents including relevant information on the Lake Way’s hydrogeology and geology.

The Lake Way drainage is incised into the Archean basement and now in-filled with a mixed sedimentary sequence, the paleochannel sands occurring only in the deepest portion. The mixed sediments include sand, silts and clays of lacustrine, aeolin, fluvial and colluvial depositional origins. The surficial deposits also include chemical sediments comprising calcrete, silcrete and ferricrete. The infill sediments provide a potential reservoir for large quantities of groundwater.

Groundwater exploration was undertaken in the early 1990s by AGC Woodward Clyde[1] to locate and secure a process water supply for WMC Resources Limited’s Mt Keith nickel operation.  There was a wide and extensive program of exploration over 40 km of palaeodrainage that focused on both the shallow alluvium and deeper palaeochannel aquifers.

The comprehensive drilling program comprised 64 air-core drillholes totalling 4,336m and five test production bores (two of which were within SLP’s exploration licences). The aquifers identified were a deep palaeochannel sand unit encountered along the length of the Lake Way investigation area and a shallow aquifer from surface to a depth of approximately 30m.

The shallow aquifer comprises a mixture of alluvium, colluvium and lake sediments extending beyond the lake playa and continuing downstream. Bore yields from Constant Rate Tests (CRT) in the shallow aquifer ranged from 60kL/day up to 590kL/day in permeable coarse-grained sand.

The deep palaeochannel sand aquifer is confined beneath plasticine clay up to 70m thick. The sand comprises medium to coarse grained quartz grains with little clay – it is approximately 30m thick and from 400m to 900m in width. Five test production bores were developed, of which two are within SLP’s tenements. CRT bore yields ranged from 520kL/day up to 840kL/day in permeable coarse-grained sand.

The groundwater is hypersaline and saturated near the lake surface with concentrations declining away from the lake. In the production bores within the SLP tenement, the reported potassium concentration was up to 4,000 mg/L K in the shallow aquifer and up to 6,300 mg/L K in the deep aquifer.

Competent Persons Statement

The information in this report that relates to Exploration Results, or Mineral Resources for Lake Wells and Lake Irwin is based on information compiled by Mr Ben Jeuken, who is a member Australian Institute of Mining and Metallurgy. Mr Jeuken is employed by Groundwater Science Pty Ltd, an independent consulting company. Mr Jeuken has sufficient experience, which is relevant to the style of  mineralisation and type of deposit under consideration and to the activity, which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr Jeuken consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.

The information in this Announcement that relates to Exploration Results for Lake Way is extracted from the report entitled ‘Emerging World Class SOP Potential Supported By Lake Way’ dated 12 December 2017.  The information in the original ASX Announcement that related to Exploration Results, for Lake Way is based on information compiled by Mr Ben Jeuken, who is a member Australian Institute of Mining and Metallurgy. Mr Jeuken is employed by Groundwater Science Pty Ltd, an independent consulting company. Mr Jeuken has sufficient experience, which is relevant to the style of  mineralisation and type of deposit under consideration and to the activity, which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr Jeuken consents to the inclusion in the report of the matters based on his information in the form and context in which it appears. The Company confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement. The Company confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement

The information in this report that relates to Process Testwork Results is based on, and fairly represents, information compiled by Mr Bryn Jones, BAppSc (Chem), MEng (Mining) who is a Fellow of the AusIMM, a ‘Recognised Professional Organisation’ (RPO) included in a list promulgated by the ASX from time to time. Mr Jones is a Director of Salt Potash Limited. Mr Jones has sufficient experience, which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking, to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr Jones consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.

Table 4 – Summary of Exploration and Mining Tenements

As at 31 December 2017, the Company holds interests in the following tenements:

Australian Projects:

Project

Status

Type of Change

License Number

Area       (km2)

Term

Grant Date

Date of First Relinquish-ment

Interest (%)

1-Oct-17

Interest

 (%)

31-Dec-17

Western Australia

Lake Wells

Central

Granted

E38/2710

192.2

5 years

05-Sep-12

4-Sep-17

100%

100%

South

Granted

E38/2821

131.5

5 years

19-Nov-13

18-Nov-18

100%

100%

North

Granted

E38/2824

198.2

5 years

04-Nov-13

3-Nov-18

100%

100%

Outer East

Granted

E38/3055

298.8

5 years

16-Oct-15

16-Oct-20

100%

100%

Single Block

Granted

E38/3056

3.0

5 years

16-Oct-15

16-Oct-20

100%

100%

Outer West

Granted

E38/3057

301.9

5 years

16-Oct-15

16-Oct-20

100%

100%

North West

Granted

E38/3124

39.0

5 years

30-Nov-16

29-Nov-21

100%

100%

West

Granted

L38/262

113.0

20 years

3-Feb-17

2-Feb-38

100%

100%

East

Granted

L38/263

28.6

20 years

3-Feb-17

2-Feb-38

100%

100%

South West

Granted

L38/264

32.6

20 years

3-Feb-17

2-Feb-38

100%

100%

South

Application

L38/287

95.8

100%

100%

South Western

Application

E38/3247

350.3

100%

100%

South

Application

Application Lodged

M38/1278

87.47

100%

Lake Ballard

West

Granted

E29/912

607.0

5 years

10-Apr-15

10-Apr-20

100%

100%

East

Granted

E29/913

73.2

5 years

10-Apr-15

10-Apr-20

100%

100%

North

Granted

E29/948

94.5

5 years

22-Sep-15

21-Sep-20

100%

100%

South

Granted

E29/958

30.0

5 years

20-Jan-16

19-Jan-21

100%

100%

South East

Granted

E29/1011

68.2

5 years

11-Aug-17

10-Aug-22

100%

100%

South East

Application

E29/1020

9.3

100%

100%

South East

Application

E29/1021

27.9

100%

100%

South East

Application

E29/1022

43.4

100%

100%

Lake Irwin

West

Granted

E37/1233

203.0

5 years

08-Mar-16

07-Mar-21

100%

100%

Central

Granted

E39/1892

203.0

5 years

23-Mar-16

22-Mar-21

100%

100%

East

Granted

E38/3087

139.2

5 years

23-Mar-16

22-Mar-21

100%

100%

North

Granted

E37/1261

107.3

5 years

14-Oct-16

13-Oct-21

100%

100%

Central East

Granted

E38/3113

203.0

5 years

14-Oct-16

13-Oct-21

100%

100%

South

Granted

E39/1955

118.9

5 years

14-Oct-16

13-Oct-21

100%

100%

North West

Application

E37/1260

203.0

100%

100%

South West

Application

E39/1956

110.2

100%

100%

Lake Minigwal

West

Granted

E39/1893

246.2

5 years

01-Apr-16

31-Mar-21

100%

100%

East

Granted

E39/1894

158.1

5 years

01-Apr-16

31-Mar-21

100%

100%

Central

Granted

E39/1962

369.0

5 years

8-Nov-16

7-Nov-21

100%

100%

Central East

Granted

E39/1963

93.0

5 years

8-Nov-16

7-Nov-21

100%

100%

South

Granted

E39/1964

99.0

5 years

8-Nov-16

7-Nov-21

100%

100%

South West

Application

E39/1965

89.9

100%

100%

Lake Way

Central

Granted

E53/1878

217.0

5 years

12-Oct-16

11-Oct-21

100%

100%

South

Application

E53/1897

77.5

100%

100%

Lake Marmion

North

Granted

E29/1000

167.4

5 years

03-Apr-17

02-Apr-22

100%

100%

Central

Granted

E29/1001

204.6

5 years

03-Apr-17

02-Apr-22

100%

100%

South

Granted

E29/1002

186.0

5 years

15-Aug-17

14-Aug-22

100%

100%

West

Granted

E29/1005

68.2

5 years

11-Jul-17

10-Jul-22

100%

100%

Lake Noondie

North

Application

E57/1062

217.0

100%

100%

Central

Application

E57/1063

217.0

100%

100%

South

Application

E57/1064

55.8

100%

100%

West

Application

E57/1065

120.9

100%

100%

East

Application

Application Lodged

E36/932

108.5

100%

Lake Barlee

North

Application

E49/495

217.0

100%

100%

Central

Granted

Granted

E49/496

220.1

5 years

17-Dec-17

16-Dec-22

100%

100%

South

Granted

Granted

E77/2441

173.6

5 years

09-Oct-17

08-Oct-22

100%

100%

Lake Raeside

North

Application

E37/1305

155.0

100%

100%

Northern Territory

Lake Lewis

South

Granted

EL 29787

146.4

6 years

08-Jul-13

7-Jul-19

100%

100%

North

Granted

EL 29903

125.1

6 years

21-Feb-14

20-Feb-19

100%

100%

 

APPENDIX 1 – LAKE WELLS DRILL LOCATION DATA

Hole_ID

Drilled Depth

 (m)

East

North

RL

Dip

Azimuth

(mAHD)

LWDD001

126.5

534271

7035995

443

-90

0

LWDD002

130.9

533930

7035793

443

-90

0

LWDD003

40.1

528670

7042963

443

-90

0

LWDD004

6

529637

7044808

443

-90

0

LWDD005

134.5

529382

7044461

443

-90

0

LWDD006

134.6

542285

6997220

443

-90

0

APPENDIX 2 – LAKE WELLS BRINE CHEMISTRY ANALYSIS

HOLE ID

From

 (m)

To

(m)

K

(mg/L)

Cl

(mg/L)

Na

(mg/L)

Ca

(mg/L)

Mg

(mg/L)

SO4

(mg/L)

TDS

(g/L)

LWDD001

0

126.5

4,260

147,700

86,200

538

6,690

19,600

274

LWDD001

0

126.5

4,270

148,050

86,500

545

6,670

19,800

273

LWDD001

0

126.5

4,280

148,250

88,800

551

6,770

20,000

278

LWDD002

0

130.9

4,580

149,150

89,500

557

6,840

20,400

278

LWDD003

0

40.1

3,560

145,450

87,100

532

7,440

22,000

276

LWDD006

0

134.6

4,380

140,850

83,000

675

6,520

18,100

259

LWDD006

0

134.6

4,220

138,050

85,200

665

6,590

18,600

258

Trench P1c

0

4.5

6,770

188,850

108,000

458

6,790

15,700

336

Trench P1c

0

4.5

6,990

190,300

110,000

469

6,940

16,300

337

Trench P1c

0

4.5

5,890

178,300

106,000

616

6,060

14,300

316

Trench P1c

0

4.5

7,000

190,650

112,000

448

7,030

16,600

338

Trench P1c

0

4.5

5,430

168,300

98,000

671

5,680

13,700

299

Trench P1h

0

6.0

5,030

160,200

95,900

660

6,040

14,500

290

Trench P1h

0

6.0

4,990

160,750

94,600

669

6,000

14,600

290

Trench P1h

0

6.0

5,000

159,150

95,800

710

6,080

14,700

288

Trench P1h

0

6.0

5,090

159,700

99,000

718

6,030

14,600

284

Trench P1h

0

6.0

4,950

159,850

95,300

720

5,980

14,600

286

Trench P1h

0

6.0

4,910

158,250

92,300

685

5,870

14,100

285

Trench P1h

0

6.0

4,600

148,400

86,400

726

5,480

13,700

266

Trench P1h

0

6.0

4,620

148,250

85,800

741

5,460

13,700

265

Trench P1h

0

6.0

4,560

150,350

87,200

769

5,430

13,700

265

Trench P1h

0

6.0

4,760

151,250

90,000

746

5,670

14,000

275

Trench P1h

0

6.0

4,900

154,400

90,600

707

5,730

14,100

278

Trench P1h

0

6.0

4,990

157,550

95,400

708

5,900

14,700

281

Trench P1h

0

6.0

5,060

160,750

95,100

683

6,060

14,600

286

Trench P1h

0

6.0

5,180

160,900

96,100

673

6,090

15,000

289

Trench P1h

0

6.0

5,120

161,800

96,700

660

6,090

14,900

290

Trench P1h

0

6.0

5,210

163,350

96,200

690

6,210

14,900

292

 

APPENDIX 3 – LAKE IRWIN TEST PIT LOCATION DATA

Hole_ID

East

North

EOH

Hole_ID

East

North

EOH

LITT001

399016

6880936

6.0

LITT015

399618

6873995

6.0

LITT002

398761

6880443

6.0

LITT016

399559

6873524

6.0

LITT003

398522

6879966

6.0

LITT017

399618

6873995

6.0

LITT004

398238

6879443

6.0

LITT018

390847

6885871

2.0

LITT005

397755

6879056

6.0

LITT019

390700

6885038

2.0

LITT006

397755

6878524

6.0

LITT020

390002

6885153

3.0

LITT007

397390

6877929

6.0

LITT021

389391

6885009

3.0

LITT008

397110

6877415

6.0

LITT022

388775

6884751

3.0

LITT009

400186

6877199

6.0

LITT023

388409

6884440

3.0

LITT010

400060

6876665

6.0

LITT024

364890

6904009

4.0

LITT011

399940

6876135

6.0

LITT025

364905

6904486

4.5

LITT012

399701

6875633

6.0

LITT026

364879

6903453

4.0

LITT013

399692

6875086

6.0

LITT027

364865

6903002

4.0

LITT014

399692

6874543

6.0

 

APPENDIX 4 – LAKE IRWIN BRINE CHEMISTRY ANALYSIS

HOLE ID

From

 (m)

To

(m)

K

(mg/L)

Cl

(mg/L)

Na

(mg/L)

Ca

(mg/L)

Mg

(mg/L)

SO4

(mg/L)

TDS

(g/L)

LITT001

0

6.0

2,410

91,150

54,700

1,240

2,230

9,930

163

LITT002

0

6.0

2,660

99,150

59,900

1,210

2,530

10,700

177

LITT003

0

6.0

2,550

99,650

61,300

1,180

2,600

11,600

178

LITT004

0

6.0

1,810

77,350

47,100

1,280

2,160

9,360

129

LITT005

0

6.0

1,620

69,600

42,100

1,300

2,050

8,970

125

LITT006

0

6.0

1,600

71,450

43,500

1,250

2,160

9,780

129

LITT007

0

6.0

2,360

102,750

62,800

1,050

3,020

11,700

185

LITT008

0

6.0

1,720

72,800

46,000

1,230

2,180

10,500

133

LITT009

0

6.0

1,940

81,150

48,900

1,420

2,200

9,570

144

LITT010

0

6.0

2,190

90,250

56,200

1,320

2,500

10,200

160

LITT011

0

6.0

2,330

92,250

56,000

1,260

2,430

9,840

166

LITT012

0

6.0

1,550

62,500

40,800

1,440

1,710

8,550

114

LITT013

0

6.0

1,700

70,200

44,700

1,410

1,870

8,640

127

LITT014

0

6.0

2,040

87,450

54,000

1,210

2,500

10,300

158

LITT015

0

6.0

2,020

84,500

52,200

1,320

2,310

9,330

151

LITT016

0

6.0

2,840

115,900

69,500

1,160

3,080

11,100

206

LITT018

0

2.0

1,550

78,800

49,300

1,200

2,820

10,700

144

LITT019

0

2.0

2,260

105,250

66,100

924

3,750

13,500

191

LITT020

0

3.0

2,260

105,250

67,500

911

3,810

13,800

191

LITT021

0

3.0

2,210

105,100

67,400

896

3,660

14,000

191

LITT022

0

3.0

2,240

111,950

70,200

858

3,990

14,500

196

LITT023

0

3.0

2,380

122,100

75,200

756

4,400

15,700

221

LITT024

0

4.0

2,820

149,500

91,900

498

6,020

21,200

273

LITT025

0

4.5

3,290

143,500

95,700

577

5,350

20,600

263

LITT026

0

4.0

2,910

149,850

94,600

449

6,270

23,700

278

LITT027

0

4.0

3,110

149,300

96,900

436

5,400

25,100

280

 

APPENDIX 5 – JORC TABLE ONE

Section 1: Sampling Techniques and Data

Criteria

JORC Code explanation

Commentary

Sampling techniques

Nature and quality of sampling (eg cut channels, random chips, or specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as down hole gamma sondes, or handheld XRF instruments, etc). These examples should not be taken as limiting the broad meaning of sampling.

Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used.

Aspects of the determination of mineralisation that are Material to the Public Report.

In cases where ‘industry standard’ work has been done this would be relatively simple (eg ‘reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assay’). In other cases more explanation may be required, such as where there is coarse gold that has inherent sampling problems. Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information.

Lake Wells (drilling)

Geological samples were obtained from diamond core drilling.

Brine samples were obtained by airlifting PVC cased diamond core holes.

 

Lake Wells (trench testing) and Lake Irwin

Geological samples were obtained from the excavator bucket at regular depth intervals.

Brine samples were taken from the discharge of trench dewatering pumps.

 

Drilling techniques

Drill type (eg core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple or standard tube, depth of diamond tails, face-sampling bit or other type, whether core is oriented and if so, by what method, etc).

Lake Wells (drilling)

Diamond core drilling

 

Lake Wells (trench testing) and Lake Irwin

Excavation with a low ground pressure excavator.

 

 

Drill sample recovery

Method of recording and assessing core and chip sample recoveries and results assessed.

Measures taken to maximise sample recovery and ensure representative nature of the samples. Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential loss/gain of fine/coarse material.

Lake Wells (drilling)

Geological sample recovery when diamond drilling was high. 

 

Lake Wells (trench testing) and Lake Irwin

Not applicable for trenching.

 

 

Logging

Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies.

Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc) photography.

The total length and percentage of the relevant intersections logged.

Lake Wells (drilling)

All drill holes were geologically logged qualitatively by a qualified geologist, noting in particular moisture content of sediments, lithology, colour, induration, grainsize and shape, matrix and structural observations. Flow rate data from airlifting was logged to note water inflow zones.

 

Lake Wells (trench testing) and Lake Irwin

All trenches and test pits were geologically logged qualitatively by a qualified geologist, noting in particular moisture content of sediments, lithology, colour, induration, grainsize and shape, matrix and structural observations. Flow rate data was logged to note water inflow zones.

 

Sub-sampling techniques and sample preparation

If core, whether cut or sawn and whether quarter, half or all core taken.

If non-core, whether riffled, tube sampled, rotary split, etc and whether sampled wet or dry.

For all sample types, the nature, quality and appropriateness of the sample preparation technique.

Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples.

Measures taken to ensure that the sampling is representative of the in situ material collected, including for instance results for field duplicate/second-half sampling.

Whether sample sizes are appropriate to the grain size of the material being sampled.

Lake Wells (drilling)

Brine samples were obtained during airlifting of cased diamond core holes.

Sample bottles are rinsed with brine which is discarded prior to sampling.

 

Lake Wells (trench testing) and Lake Irwin

Brine samples were taken from the discharge of trench dewatering pumps.

Sample bottles are rinsed with brine which is discarded prior to sampling.

All brine samples taken in the field are split into two sub-samples: primary and duplicate.  Reference samples were analysed at a separate laboratory for QA/QC.

Representative chip trays and bulk lithological samples are kept for records.

 

 

Quality of assay data and laboratory tests

The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total.

For geophysical tools, spectrometers, handheld XRF instruments, etc, the parameters used in determining the analysis including instrument make and model, reading times, calibrations factors applied and their derivation, etc.

Nature of quality control procedures adopted (eg standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established.

Primary samples were sent to Bureau Veritas Minerals Laboratory, Perth. 

Brine samples were analysed using ICP-AES for K, Na, Mg, Ca, with chloride determined by Mohr titration and alkalinity determined volumetrically. Sulphate was calculated from the ICP-AES sulphur analysis.

 

Verification of sampling and assaying

The verification of significant intersections by either independent or alternative company personnel.

The use of twinned holes.

Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols.

Discuss any adjustment to assay data.

Data entry is done in the field to minimise transposition errors.

Brine assay results are received from the laboratory in digital format, these data sets are subject to the quality control described above.  All laboratory results are entered in to the company’s database and validation completed.

Independent verification of significant intercepts was not considered warranted given the relatively consistent nature of the brine.

Location of data points

Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys), trenches, mine workings and other locations used in Mineral Resource estimation.

Specification of the grid system used.

Quality and adequacy of topographic control.

Trench and test pit co-ordinates were captured using hand held GPS.

Coordinates were provided in GDA 94_MGA Zone 51.

Topographic control is obtained using Geoscience Australia’s 1-second digital elevation product.

 

Data spacing and distribution

Data spacing for reporting of Exploration Results.

Whether the data spacing and distribution is sufficient to establish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied.

Whether sample compositing has been applied.

Lake Wells (drilling)

Drill hole spacing is shown on the attached map and varies due to irregular access along the lake edge.

 

Lake Wells (trench testing) and Lake Irwin

Trench hole spacing is shown on the attached maps and varies due to irregular access along the lake edge.

 

Orientation of data in relation to geological structure

Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known, considering the deposit type.

If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias, this should be assessed and reported if material.

Lake Wells (drilling)

All drill holes and pits were vertical. Geological structure is considered to be flat lying.

 

Lake Wells (trench testing) and Lake Irwin

Trenches and test pits were vertical. Geological structure is considered to be flat lying.

 

Sample security

The measures taken to ensure sample security.

All brine samples were marked and kept onsite before transport to the laboratory.

All remaining sample and duplicates are stored in the Perth office in climate-controlled conditions.

Chain of Custody system is maintained.

Audits or reviews

The results of any audits or reviews of sampling techniques and data.

No audits were undertaken.

Section 2: Reporting of Exploration Results

Criteria

JORC Code explanation

Commentary

Mineral tenement and land tenure status

Type, reference name/number, location and ownership including agreements or material issues with third parties such as joint ventures, partnerships, overriding royalties, native title interests, historical sites, wilderness or national park and environmental settings.

The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area.

 

Lake Wells

Tenements excavated were granted exploration licences 38/2710, 38/2821, 38/2824, 38/3055, 38/3056 and 38/3057 in Western Australia.

 

Lake Irwin

Tenements sampled 37/1233, 38/3087 and 39/1892 in Western Australia.

Exploration Licenses are held by Piper Preston Pty Ltd (fully owned subsidiary of ASLP).

Exploration done by other parties

Acknowledgment and appraisal of exploration by other parties.

Details are presented in the report.

 

Geology

Deposit type, geological setting and style of mineralisation.

Salt Lake Brine Deposit

 

 

 

 

 

Drill hole Information

A summary of all information material to the understanding of the exploration results including a tabulation of the following information for all Material drill holes:

o   easting and northing of the drill hole collar

o   elevation or RL (Reduced Level – elevation above sea level in metres) of the drill hole collar

o   dip and azimuth of the hole

o   down hole length and interception depth

o   hole length.

If the exclusion of this information is justified on the basis that the information is not Material and this exclusion does not detract from the understanding of the report, the Competent Person should clearly explain why this is the case.

Details are presented in the report.

 

 

Data aggregation methods

In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated.

Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results, the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail.

The assumptions used for any reporting of metal equivalent values should be clearly stated.

Details are presented in the report.

 

Relationship between mineralisation widths and intercept lengths

These relationships are particularly important in the reporting of Exploration Results.

If the geometry of the mineralisation with respect to the drill hole angle is known, its nature should be reported.

If it is not known and only the down hole lengths are reported, there should be a clear statement to this effect (eg ‘down hole length, true width not known’).

Lake Wells (drilling)

The unit is flat lying and drill holes are vertical hence the intersected downhole depth is equivalent to the inferred thickness of mineralisation

 

Lake Wells (trench testing) and Lake Irwin

The unit is flat lying and trenches and pits are vertical hence the intersected downhole depth is equivalent to the inferred thickness of mineralisation.

 

 

Diagrams

Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include, but not be limited to a plan view of drill hole collar locations and appropriate sectional views.

Addressed in the announcement.

Balanced reporting

Where comprehensive reporting of all Exploration Results is not practicable, representative reporting of both low and high grades and/or widths should be practiced to avoid misleading reporting of Exploration Results.

All results have been included.

Other substantive exploration data

Other exploration data, if meaningful and material, should be reported including (but not limited to): geological observations; geophysical survey results; geochemical survey results; bulk samples – size and method of treatment; metallurgical test results; bulk density, groundwater, geotechnical and rock characteristics; potential deleterious or contaminating substances.

Gravity survey was completed by Atlas Geophysics using a Hi Target V100 GNSS receiver for accurate positioning and CG-5 Digital Automated Gravity Meter.   

Gravity data was gained using the contractors rapid acquisition, high accuracy UTV borne techniques.  The company’s own in-house reduction and QA software was used to reduce the data on a daily basis to ensure quality and integrity.  All gravity meters were calibrated pre and post survey and meter drift rates were monitored daily.  3 to 5 % of the stations are repeated for quality control.

Western Geophysics were engaged to manage and process the gravity survey.  Processing the survey involved reducing the gravity data and integrating to the regional data to a residual anomaly which shows there is a semi-continuous distinct residual gravity low of negative 2 to 2.5 milligals present along eastern to central areas to the entire tenement area.

Further work

The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling).

Diagrams clearly highlighting the areas of possible extensions, including the main geological interpretations and future drilling areas, provided this information is not commercially sensitive.

Further trench testing and numerical hydrogeological modelling to be completed that incorporates the results of the test pumping.  The model will be the basis of the annual brine abstraction rate and mine life.

 

For further information please visit www.saltlakepotash.com.au or contact: 

Sam Cordin

Salt Lake Potash Limited

Tel: +61 8 9322 6322

Colin Aaronson/Richard Tonthat

Grant Thornton UK LLP (Nominated Adviser)

Tel: +44 (0) 207 383 5100

Nick Tulloch/Beth McKiernan

Cenkos Securities plc (Joint broker)

Tel: +44 (0) 131 220 6939

Jerry Keen/Toby Gibbs  

Shore Capital (Joint broker)        

Tel: +44 (0 207 468 7967


[1] WMC Resource Limited report by AGC Woodward Pty Ltd, 1992, Mt Keith Project, Process Water Supply Study, Lake Way Area, Volume I and II, Report

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