About the Project

Argentina Lithium controls over 3700 hectares of claims at the Rincon Salar in Salta Province, Argentina, with approximately half held under option.

Prior to Argentina Lithium’s involvement, the project area had no significant historic exploration, and as such it presented a new opportunity to identify lithium at a salar that is known to host lithium-bearing brines with production potential. The Company has now reported its first mineral resource estimate for the West Block and is advancing towards its first preliminary economic assessment for the project

1. MRE Highlights (see Tables 1 and 2 for details):

• Measured and Indicated Resources of 0.15 km3 brine volume with an average grade of 296 mg/lithium, representing 238,000 tonnes Lithium Carbonate Equivalent (LCE), and
• Inferred Resource of 0.08 km3 brine volume with an average grade of 216 mg/l lithium, representing 64,000 tonnes LCE.

Location & Infrastructure

Located at approximately 3,760 metres above sea level, the geological environment at the Rincon Salar is similar to other salars in the Puna region where lithium and potash are found. 

The Rincon West Project is situated close to the railway, and just 17 kilometres south of Provincial Route 51, the international road that connects to Chile’s coastal ports. It is approximately 150 kilometres from the town of San Antonio de los Cobres. The InterAndes power corridor runs within one kilometre of the salar. Rincon West is approximately 38km from the Company’s Pocitos Project.

There are two significant lithium resource development projects on the salar, owned by Rio Tinto (www.riotinto.com) and Argosy Minerals (www.argosyminerals.com.au) both of which have executed demonstration-scale production of lithium carbonate. Rio Tinto plan to expand its production to 60,000 tonnes of battery grade lithium carbonate per year by 2028.[Argentina Lithium cautions that proximity to a discovery, mineral resource, or mining operation does not indicate that mineralization will occur on the Company’s property, and if mineralization does occur, that it will occur in sufficient quantity or grade that would result in an economic extraction scenario.] The Rincon West project is adjacent to claims belonging to Rio Tinto on the east, west and north sides of the salar.

Exploration and Resources

Argentina Lithium completed its first drill program on the West Block in 2023. Results from the on-going program that year demonstrated that the concentrated brines from the neighboring salt flat extend through the western basin.  In 2024 the Company continued expand the brine zone on the basin, and drilled its first rotary well in preparation for pump testing on the West Block.

On October 22, 2025, the Company released its first mineral estimate for the project. The Mineral Resource estimate was completed at the West Block properties (mining concessions Villanoveño II and Rinconcita II) totalling 2,931 hectares. The resource was defined by 14 exploration boreholes totalling 4823.2 metres of diamond drilling, and one production well of 470 metres of total length.

Table 1. Lithium and Potassium Mineral Resources at the Rincon West Project

Notes to the resource estimate (Table 1):

1. CIM definitions were followed for Mineral Resources.
2. The Qualified Person for this Mineral Resource estimate is Frederik Reidel, CPG.
3. No cut-off values have been applied to the resource estimate./li>
4. Numbers may not sum exactly due to rounding.

Table 2. Lithium Carbonate Equivalent (LCE) and Potassium Chloride (KCl) Mineral Resources

Notes to Table 2

1. Lithium is converted to lithium carbonate (Li2CO3) with a conversion factor of 5.32.
2. Potassium is converted to potassium chloride with a conversion factor of 1.91.
3. Numbers may not sum exactly due to rounding.

The effective date of the Mineral Resource estimate is September 26, 2025. Supporting information for the Mineral Resource estimate is detailed in an independent technical report prepared in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects (“NI 43-101”) filed on SEDAR+.

Work is on-going as the Company advances the project towards a preliminary economic assessment. For details of the latest work program and results please refer to the News Releases and Presentations.