Lithium Argentina AG — Proxy Solicitation & Information Statement 2024

Nov 29, 2024

Date: November 29, 2024

Computershare
510 Burrard St, 3rd Floor
Vancouver BC, V6C 3B9
www.computershare.com

To: All Canadian Securities Regulatory Authorities
New York Stock Exchange

Subject: LITHIUM AMERICAS (ARGENTINA) CORP

Dear Sir/Madam:

We advise of the following with respect to the upcoming Meeting of Security Holders for the subject Issuer:

Meeting Type : Special Meeting
Record Date for Notice of Meeting : December 03, 2024
Record Date for Voting (if applicable) : December 03, 2024
Beneficial Ownership Determination Date : December 03, 2024
Meeting Date : January 17, 2025
Meeting Location (if available) : Virtual Meeting
Issuer sending proxy related materials directly to NOBO: No
Issuer paying for delivery to OBO: Yes

Notice and Access (NAA) Requirements:

NAA for Beneficial Holders : Yes
Beneficial Holders Stratification Criteria: Not Applicable
NAA for Registered Holders : Yes
Registered Holders Stratification Criteria: Not Applicable

Voting Security Details:

Description	CUSIP Number	ISIN
COMMON SHARES	53681K100	CA53681K1003

Sincerely,

Computershare

Agent for LITHIUM AMERICAS (ARGENTINA) CORP