Tectonic Metals Inc. — AGM Information 2021

Aug 11, 2021

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August 11, 2021

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

To: All Canadian Securities Regulatory Authorities

Subject: TECTONIC METALS INC.

Dear Sir/Madam:

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

Meeting Type : Annual General and Special Meeting Record Date for Notice of Meeting : August 26, 2021 Record Date for Voting (if applicable) : August 26, 2021 Beneficial Ownership Determination Date : August 26, 2021 Meeting Date : October 06, 2021 Meeting Location (if available) : Vancouver, BC Issuer sending proxy related materials directly to NOBO: No Issuer paying for delivery to OBO: No

Notice and Access (NAA) Requirements:

NAA for Beneficial Holders No NAA for Registered Holders No

Voting Security Details:

Description CUSIP Number ISIN COMMON CLASS 87877T301 CA87877T3010

Sincerely,

Computershare

Agent for TECTONIC METALS INC.