Lithium Americas reports 2026 annual meeting results

Lithium Americas Corp. (TSX: LAC) (NYSE: LAC) (“ Lithium Americas ” or the “ Company ”) announced the results from its annual meeting of shareholders held on June 22, 2026 (the “ Meeting ”). Each of the following seven nominees was elected as a director of the Company: Final voting results on all matters voted on at the Meeting will be filed on SEDAR+ ( www.sedarplus.ca) and EDGAR ( www.sec.gov) and posted to the Investors section of the Company’s website at www.lithiumamericas.com. ABOUT LITHIUM AMERICAS Lithium Americas is building Thacker Pass located in Humboldt County in northern Nevada.

Phase 1 is designed for nominal production capacity of 40,000 tonnes per year of battery-quality lithium carbonate, and mechanical completion is targeted for late 2027. Thacker Pass hosts the largest known measured lithium resource (Measured and Indicated) and reserve (Proven and Probable) in the world and is owned by a joint venture between Lithium Americas (holding a 62% interest), and General Motors Holdings LLC (holding a 38% interest). Lithium Americas’ shares are listed on the Toronto Stock Exchange and New York Stock Exchange under the symbol LAC.

To learn more, visit www.lithiumamericas.com or follow @LithiumAmericas on social media. FORWARD-LOOKING STATEMENTS This news release contains “forward-looking information” within the meaning of applicable Canadian securities legislation and “forward-looking statements” within the meaning of the United States Private Securities Litigation Reform Act of 1995 (collectively, “ FLS ”). FLS can often be identified by words such as “anticipate,” “designed,” “estimate,” “expect,” “intend,” “may,” “plan,” “target,” “will” and similar expressions.

FLS in this news release includes statements regarding the design and production capacity of Phase 1 of Thacker Pass, the targeted timing for mechanical completion and mineral resource and reserve estimates. FLS is based on certain assumptions, including that the Company will complete Phase 1 construction on schedule and within budget, that required permits and approvals will be maintained, that mineral resource and reserve estimates remain accurate, that financing will continue to be available on acceptable terms, and that general market and economic conditions will not materially deteriorate. FLS involves known and unknown risks, uncertainties and other factors that may cause actual results to differ materially from those expressed or implied, including the risks described in the Company’s continuous disclosure documents filed on SEDAR+ at www.sedarplus.ca and on EDGAR at www.sec.gov .

Readers are cautioned not to place undue reliance on FLS, which speak only as of the date of this news release. The Company does not undertake any obligation to update or revise any FLS except as required by applicable securities legislation. View source version on businesswire.com: https://www.businesswire.com/news/home/20260623461271/en/ INVESTOR CONTACT Virginia Morgan Vice President, Investor Relations and ESG +1-778-726-4070 ir@lithiumamericas.com Business Wire June 23, 2026 - 4:00 AM PDT News by QuoteMedia www.quotemedia.com