C3 Metals Inc. — Proxy Solicitation & Information Statement 2026

Feb 6, 2026

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VIA ELECTRONIC TRANSMISSION

February 6, 2026

TO ALL APPLICABLE EXCHANGES AND COMMISSIONS:

RE: C3 METALS INC.

We are pleased to confirm that copies of the following proxy-related materials were mailed on February 5, 2026 to the Registered Securityholders and to the Non-Objecting Beneficial Owners ("NOBO"):

• 1 Proxy with Request for Financial Statements Registered Securityholders
• 2 Voting Instruction Form with Request for Financial Statements NOBOs
• 3 Notice of Meeting Combined with Information Circular
• 4 Proxy Return Envelope

Yours truly, TSX Trust Company

VANCOUVER

2310 - 733 Seymour Street, Vancouver, BC V6B 0S6

CALGARY

300-5th Avenue SW, 10th floor Calgary, AB T2P 3C4

TORONTO

301 - 100 Adelaide Street West Toronto ON M5H 4H1

Toll Free 1-866-600-5869 T 416 361-0930

MONTRÉAL

1800 - 1190, avenue des Canadiens-de-Montréal, C. P. 37 Montréal (Québec) H3B 0G7

T 514 395-5964