Transatlantic Mining Corp. — AGM Information 2023

Sep 11, 2023

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September 11, 2023

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

To: All Canadian Securities Regulatory Authorities

Subject: TRANSATLANTIC MINING CORP

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 Meeting Record Date for Notice of Meeting : October 06, 2023 Record Date for Voting (if applicable) : October 06, 2023 Beneficial Ownership Determination Date : October 06, 2023 Meeting Date : November 10, 2023 Meeting Location (if available) : Vancouver, BC Issuer sending proxy related materials directly to NOBO: Yes 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 89355R203 CA89355R2037

Sincerely,

Computershare

Agent for TRANSATLANTIC MINING CORP