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Lithium Argentina AG reported an updated resource estimate for its Cauchari-Olaroz operation, increasing Measured and Indicated resources by 42% to 28.1 Mt of LCE. The Stage 2 development plan targets an additional 45,000 tpa of LCE, supplementing the current 40,000 tpa capacity.

The estimate, effective December 31, 2025, was completed by Aquatec and Groundwater Insight, incorporating new drilling and hydrological modeling. Applications for environmental permits and RIGI support for Stage 2 were filed in December 2025, with expectations for a technical report by March 2026 and further updates in mid-2026.