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Argentina
Pozuelos-Pastos Grandes Project

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 Location:
141 km W from Salta, Argentina

  Project Contacts:
Vicente López 653, Esquina: Pasaje Mollinedo
Salta
Argentina
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

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Overview

StageConstruction
Mine TypeIn-Situ
Commodities
  • Lithium
Mining Method
  • Solution mining
Mine Life20 years (as of Jan 1, 2019)
As of December 23, 2022 the company has not provided project timeline update since January 17, 2019.


Owners

Source:
CompanyInterestOwnership
LitheA Inc., Sucursal Argentina S.A. 100 % Direct
BEIJING, July 11 (Reuters) - China's biggest lithium compounds producer Ganfeng Lithium Co Ltd(002460.SZ) said on Monday it will buy Argentina-focussed Lithea Inc for up to $962 million as it seeks to secure access to more resources for production of key battery metals.

Contractors

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Deposit Type

  • Brine


Summary:

Pastos Grandes and Pozuelos are both classified as salars, which are brine formations containing elevated levels of metals in solution, typically as salts. Salars can be found at elevations from 1,000 [m] to more than 4,000 [m] above sea level. They typically represent the end product of a basin infill process that starts with the erosion of the surrounding relief, beginning with deposition of colluvial talus and fan gravels and grading upwards to sheet sands and playa silts and clays as the basin fills. There are numerous variations on the model and the literature provides ample discussion of the relevant tectonic and sedimentary processes involved in both general and specific terms (Hardie et al, 1978; Reading, 1996; Warren, 1999; Einsele, 2000); and specifically with regard to the Altiplano-Puna (Ericksen and Salas, 1989; Alonso et al, 1991; Chong et al., 1999, Bobst et al, 2001; Lowenstein et al., 2003; Risacher et al., 2003; Vinante and Alonso, 2006).

Lithium brine projects differ significantly from hard rock mining projects due to their fluid nature. The important considerations of a brine deposit are the contained elements and chemistry of the brine and the characteristics of the host aquifer, such as aquifer extent, thickness, internal variations/heterogeneity and the physical aquifer properties, particularly porosity.

Lithium brine projects can be subdivided into two broad ‘deposit types’, depending on the salar characteristics (Houston et. a ........


Mining Methods

  • Solution mining


Summary:

The mining method considers 24-hour extraction of brine from production wells. Brine extraction considers the use of electrical submersible pumps in each production well. The brine is pumped through a pipe network that connects each production well field (Pastos Grandes and Pozuelos) with the Brine Transfer/Mixing Pond located at Pozuelos. From there the mixed brine is pumped to the evaporation ponds, the first stage of the project’s processing component.

The operating brine extraction wells will be relocated throughout the brine resource areas of both salars during the life of the project. Additional wells are added as required to provide constant blended flow as the salar draws down over time. The associated network of brine gathering pipelines will be relocated and amended to service the operating well locations as they progress across the salars. It is envisioned that brine will be supplied by a combination of deep and shallow wells and trenches.

Basic mining infrastructure for brine extraction considers:
- Consolidated access road and platform for rig and well services;
- Consolidated pad for drill location and drilling equipment;
- Production wells, including pumps and electricity supply;
- Pipe network connecting each well area to the process area (evaporation ponds and process plant).

A total of 1200 [m3/h] of raw brine feed is required to support the lithium carbonate production system. The system targets a bl ........


Crushing and Grinding


Processing

Flow Sheet: Subscription required

Summary:

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Projected Production:

CommodityUnitsAvg. AnnualLOM
Lithium t 20,000370,000
All production numbers are expressed as carbonate.

Operational Metrics:

Metrics
Annual production capacity 20,000 t of lithium carbonate *
* According to 2019 study.

Reserves at November 18, 2018:
Resources have been estimated using a cut-off grade of 330 [mg/L] lithium for Pozuelos and 100 mg/L for Pastos Grandes based on economic considerations related to estimated production costs for brine extraction.

CategoryTonnage CommodityContained Metal
Measured 12,066,000,000 cu. m Lithium 348,090 t
Measured 12,066,000,000 cu. m LCE 1,852,720 t
Indicated 4,768,000,000 cu. m Lithium 143,335 t
Indicated 4,768,000,000 cu. m LCE 763,760 t
Measured & Indicated 16,835,000,000 cu. m Lithium 491,450 t
Measured & Indicated 16,835,000,000 cu. m LCE 2,616,580 t
Inferred 7,452,000,000 cu. m Lithium 176,360 t
Inferred 7,452,000,000 cu. m LCE 938,500 t

Commodity Production Costs:

CommodityUnitsAverage
Cash costs Li2CO3 USD  ......  Subscription required&nbs
All-in sustaining costs (AISC) Li2CO3 USD  ......  Subscription required&nbs
Assumed price Li2CO3 USD  ......  Subscription required&nbs
* According to 2019 study / presentation.

2019 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M USD  ......  Subscription required
Total CapEx $M USD  ......  Subscription required
Total OpEx $M USD  ......  Subscription required
Gross revenue (LOM) $M USD  ......  Subscription required
Pre-tax NPV @ 8% $M USD  ......  Subscription required
After-tax NPV @ 8% $M USD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
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Water Supply

Fresh water supply (raw water) is available from the northern part of Pozuelos, where two sites have
been identified by LSC in the vicinity of the lithium plant location. Sites WF1 and MW-N will be supplemented by a further fresh water site identified in the south, if required.

Wells will supply the temporary facilities as well as permanent plant facilities. A filter plant is required for proper water treatment. Process water requirements are split into process requirements, requirements for the demineralised/Reverse Osmosis. water plant, the potable water plant and for general reticulation. Potable water consumption has been estimated considering 150 [L/day/person] @ 150 persons at full plant operation.


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jan 17, 2019
....................... Subscription required ....................... Subscription required Subscription required Jan 17, 2019
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Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
Corporate Presentation 2018
Press Release 2018
Technical Report 2018
Technical Report 2018
Subscription required - Subscription is required.

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