Altiplano Metals Inc. — Proxy Solicitation & Information Statement 2025

Jul 18, 2025

July 18, 2025

ODYSSEY

Filed via SEDAR+

To All Applicable Exchanges and Securities Administrators

Subject: Altiplano Metals Inc. (the "Issuer")
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:

Meeting Type:	Annual Meeting
Meeting Date:	September 18, 2025
Record Date for Notice of Meeting:	August 13, 2025
Record Date for Voting (if applicable):	August 13, 2025
Beneficial Ownership Determination Date:	August 13, 2025
Class of Securities Entitled to Vote:	Common
ISIN:	CA02156R1082
Issuer sending proxy materials directly to NOBOs:	No
Issuer paying for delivery to OBOs:	No
Notice and Access for Beneficial Holders:	No
Notice and Access for Registered Holders:	No

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 Altiplano Metals Inc.