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| Summary of 2026 Lithium Mineral Resource Estimate(1-9) | |||||
| Resource Classification | Aquifer volume (m3) | Brine Drainable Volume (m3) | Average Lithium concentration (mg/L) | Li (tonnes) | LCE (tonnes) |
| Measured | 5.94E+ 10 | 5.89E+ 09 | 557 | 3,164,540 | 16,844,844 |
| Indicated | 3.87E+ 10 | 3.82E+ 09 | 571 | 2,122,708 | 11,299,172 |
| Measured + Indicated | 9.81E+ 10 | 9.71E+ 09 | 562 | 5,287,247 | 28,144,016 |
| Inferred | 2.77E+ 10 | 3.24E+ 09 | 567 | 1,806,125 | 9,614,004 |
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Notes:
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- A lithium grade cutoff of 300 mg/L is used to define the Mineral Resource.
- Mineral Resources are also expressed in the industry standard Lithium Carbonate Equivalent (LCE = Lithium × 5.323).
- The mass of lithium produced from 2018–2025 period (52,786 t = 280,982 t LCE) has been removed from the Mineral Resource.
- The independent Qualified Person for the 2026 Mineral Resource Estimate is Mark King, PhD PGeo, FGC.
- The Effective Date of the Mineral Resource Estimate is December 31, 2025.
- The Mineral Resource Estimate is not a Mineral Reserve Estimate and does not have demonstrated economic viability. There is no certainty that all or any part of the Mineral Resources will be converted to Mineral Reserves.
- Calculated brine volumes only include Measured, Indicated, and Inferred Mineral Resource volumes above cut-off grade.
- The Mineral Resource Estimate has been classified in accordance with CIM Mineral Resource definitions and best practice guidelines (2012 and 2014).
- Comparisons of values may not add due to rounding of numbers and the differences caused by use of averaging methods.
- The Mineral Resources are presented on a 100% basis.
- Mineral Resources reported are inclusive of Mineral Reserves.
- The estimate of Mineral Resources may be materially affected by legal, political, environmental, or other risks.
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ABOUT LITHIUM ARGENTINA
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Lithium Argentina is an emerging producer of lithium carbonate for use primarily in lithium-ion batteries and electric vehicles. The Company, in partnership with Ganfeng operates the Cauchari-Olaroz lithium brine operation in the Jujuy province of Argentina and is advancing PPG in the Salta province of Argentina. Lithium Argentina currently trades on the TSX and on the NYSE under the ticker “LAR”.
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Cauchari-Olaroz is 44.8% owned by the Company, 46.7% by Ganfeng and 8.5% by JEMSE, a mining investment company owned by the government of Jujuy Province in Argentina.
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For further information contact:
Investor Relations
Telephone: +1 778-653-8092
Email: [email protected]
Website: http://www.lithium-argentina.com
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FORWARD-LOOKING INFORMATION
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This news release contains “forward-looking information” and “forward-looking statements” (which we refer to collectively as forward-looking information) under the provisions of applicable securities legislation. Forward-looking information can be identified by the use of words such as seek”, “anticipate”, “plan”, “continue”, “estimate”, “expect”, “may”, “will”, “project”, “predict”, “propose”, “potential”, “target”, “intend”, “could”, “might”, “should”, “believe”, “scheduled”, “implement” and similar words or expressions. All statements, other than statements of historical fact, are forward-looking information. Forward-looking information in this news release include, without limitation, information with respect to the following matters or the Company’s expectations relating to such matters: the timing of the filing of the Technical Report; mineral resource and reserve estimates; the impacts of the increase in resources and reserves on the Company’s growth strategy and for staged capacity expansions at Cauchari-Olaroz; the timing and amount of future production, capacity and anticipated costs; expectations with respect to Stage 2 and the timing for a scoping study thereof; global production estimates; and permitting and expectations related to the Company’s RIGI application.
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Forward-looking information may involve known and unknown risks, assumptions and uncertainties which may cause the Company’s actual results or performance to differ materially. This information reflects the Company’s current views with respect to future events and is necessarily based upon a number of assumptions that, while considered reasonable by the Company today, are inherently subject to significant uncertainties and contingences, and accordingly, the Company can give no assurance that these assumptions and expectations will prove to be correct. With respect to forward-looking information included in this news release, the Company has made assumptions regarding, among other things: current technological trends; the business relationship between the Company and Ganfeng Lithium Group Co. Ltd.; ability to fund its operations; the ability to operate in a safe and effective manner; uncertainties relating to obtaining and/or maintaining mining, exploration, development, environmental and other permits or approvals in Argentina including the Company’s RIGI application; demand for lithium; impact of increasing competition in the lithium business, including the Company’s competitive position in the industry; general economic conditions; stability and support of legislative, regulatory and community environment in the jurisdiction where it operates; estimates of and changes to market prices for lithium and commodities; estimates costs for the project or operation; estimates of mineral resources and mineral reserves, including whether mineral resources will ever be developed into mineral reserves; reliability of technical data; and the ability to achieve full production; and accuracy of budget and estimates. Forward-looking information also involves known and unknown risks that may cause actual results to differ materially, these risks include, among others: the operations may not operate and produce as planned; cost overruns; market prices affecting development of the operation; risks associated with co-ownership arrangements; risks with ability to successfully secure adequate financing if necessary; risks to the growth of the lithium markets; lithium prices; inability to obtain any future required governmental permits and that operations may be limited by government-imposed limitations; technology, cyber security and artificial intelligence risk; inability to achieve and manage expected growth; political risk associated with foreign operations, including co-ownership arrangements with foreign domiciled partners; emerging and developing market risks; operational risks; changes in government regulations; changes in environmental requirements; failure to obtain or maintain necessary licenses, permits or approvals; insurance risk; receipt and security of mineral property titles and mineral tenure risk; changes in project or operation parameters; uncertainties associated with estimating mineral resources and mineral reserves, including uncertainties regarding assumptions underlying such estimates; whether mineral resources will ever be converted into mineral reserves; opposition to the Company’s projects; geological or technical or processing problems; liabilities and risks; health and safety risks; unanticipated results; unpredictable weather; unanticipated delays; reduction in demand for lithium; inability to generate profitable operations; restrictive covenants in debt instruments; intellectual property risks; dependency on key personnel; currency and interest rate fluctuations; and volatility in general market and industry conditions. Additional risks, assumptions and other factors are set out in the Company’s management discussion analysis and most recent Annual Report on Form 20-F, copies of which are available on SEDAR+ at www.sedarplus.ca
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