Lithium Americas Corp. — Proxy Solicitation & Information Statement 2026

Apr 20, 2026

April 20, 2026

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Filed via SEDAR+

To All Applicable Exchanges and Securities Administrators

Subject: Lithium Americas Corp. (the "Issuer") AMENDED - Notice of Meeting and Record Date

Dear Sir/Madam:

We are pleased to confirm the following information with respect to the Issuer's upcoming meeting of securityholders:

MeetingType:	Annual Meeting
MeetingDate:	June 22,2026 -AMENDED
Record Date for Notice of Meeting:	April 23,2026 -AMENDED
Record Date for Voting (if applicable):	April 23,2026 -AMENDED
Beneficial OwnershipDetermination Date:	April 23,2026 -AMENDED
Class of Securities Entitled to Vote:	Common
ISIN:	CA53681J1030
Issuer sending proxymaterials directlyto NOBOs:	No
Issuerpayingfor deliveryto OBOs:	Yes
Notice and Access for Beneficial Holders:	Yes
Notice and Access for Registered Holders:	Yes

In accordance with applicable securities regulations we are filing this information with you in our capacity as agent of the Issuer.

Yours truly,

Odyssey Trust Company as agent for Lithium Americas Corp.