Lithium Argentina Announces Cauchari-Olaroz Stage 2 Scoping Study Results and Acceleration of Initial Phase of 10,000 tpa

ZUG, Switzerland, Sept. 30, 2026 (GLOBE NEWSWIRE) -- Lithium Argentina AG (“Lithium Argentina” or the “Company”) (TSX: LAR) (NYSE: LAR) announced the results of a Scoping Study (the “Scoping Study”) for the Cauchari-Olaroz Stage 2 Expansion Project (“Stage 2” or the “Expansion Project”) in Jujuy Province, Argentina.

The Scoping Study supports a brownfield expansion designed to produce an additional 45,000 tonnes per annum (“tpa”) of lithium carbonate at Cauchari-Olaroz. The Scoping Study generated an after-tax NPV(8%) of $3.1 billion and IRR of 28.5% using a lithium carbonate price of $18,000/t.