Lithium Argentina Lifts Cauchari-Olaroz Resource to Back Stage 2 Expansion

Lithium Argentina ( (TSE:LAR) ) has shared an update.

Lithium Argentina AG announced on March 11, 2026 an updated mineral resource and reserve estimate for its Cauchari-Olaroz brine operation in Jujuy, Argentina, based on work effective December 31, 2025. The new study, prepared by independent consultants, underpins the company’s plan to expand beyond its existing 40,000 tpa Stage 1 lithium carbonate operation with a Stage 2 project and supports its ambition to become a leading low-cost brine producer.

The updated estimate increases measured and indicated resources by 42% to 28.1 million tonnes of lithium carbonate equivalent and more than doubles inferred resources to 9.6 million tonnes, driven by additional drilling, production data and a basin-wide hydrological model that extended the resource footprint about 20 km south. Proven reserves rose roughly 45% while total proven and probable reserves were reset to 1.4 million tonnes of LCE, aligned strictly with Stage 1’s 40,000 tpa plan over a 35-year operating period from 2026 to 2060, leaving potential Stage 2 volumes outside the current reserve base.

Lithium Argentina has already filed applications under Argentina’s Incentive Regime for Large Investments and environmental permits to support the planned 45,000 tpa Stage 2 expansion, with an updated development plan expected by mid-2026. Management highlighted that Stage 1 is operating near capacity at costs below $6,000 per tonne, and said the enlarged resource and improved hydrogeological understanding de-risk its growth pipeline and reinforce the long-term production outlook, a key consideration for shareholders and other stakeholders in the global battery materials supply chain.

The most recent analyst rating on (TSE:LAR) stock is a Buy with a C$9.60 price target. To see the full list of analyst forecasts on Lithium Argentina stock, see the TSE:LAR Stock Forecast page.

More about Lithium Argentina

Lithium Argentina AG is a Switzerland-based lithium producer with North American offices in Canada, focused on large-scale lithium brine operations in northern Argentina. Its key assets include the Cauchari-Olaroz brine project in Jujuy Province and the Pozuelos-Pastos Grandes project, positioning the company as a significant supplier of lithium carbonate equivalent to global battery and electric-vehicle markets.

The company operates Stage 1 at Cauchari-Olaroz with capacity of 40,000 tonnes per year of lithium carbonate equivalent and is advancing plans for a Stage 2 expansion. Management emphasizes disciplined capital allocation and the use of new technologies to improve operating efficiency while targeting a long-term combined production capacity of more than 200,000 tonnes per year across its Argentine portfolio.

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Technical Sentiment Signal: Strong Buy

Current Market Cap: C$1.59B

For detailed information about LAR stock, go to TipRanks’ Stock Analysis page.