Thunderbird Minerals Corp. — Proxy Solicitation & Information Statement 2025

Oct 16, 2025

October 16, 2025

ODYSSEY

Filed via SEDAR+

AMENDED

To All Applicable Exchanges and Securities Administrators

Subject: Thunderbird Minerals Corp. (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 and Special Meeting
Meeting Date:	November 12, 2025
Record Date for Notice of Meeting:	September 22, 2025
Record Date for Voting (if applicable):	September 22, 2025
Beneficial Ownership Determination Date:	September 22, 2025
Class of Securities Entitled to Vote:	Common Shares
ISIN:	CA88605R1047
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 Thunderbird Minerals Corp.