RTG Mining Inc. — AGM Information 2023

Mar 23, 2023

March 23, 2023

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100 University Avenue, 8th floor Toronto ON, M5J 2Y1 www.computershare.com

To: All Canadian Securities Regulatory Authorities

Subject: RTG Mining 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 Meeting Record Date for Notice of Meeting : April 20, 2023 Record Date for Voting (if applicable) : April 20, 2023 Beneficial Ownership Determination Date : April 20, 2023 Meeting Date : May 31, 2023 Meeting Location (if available) : Perth, AU Issuer sending proxy related materials directly to NOBO: No Issuer paying for delivery to OBO: Yes

Notice and Access (NAA) Requirements:

NAA for Beneficial Holders No NAA for Registered Holders No

Voting Security Details:

Description CUSIP Number ISIN ORDINARY SHARES G7707W152 VGG7707W1529

Sincerely,

Computershare

Agent for RTG Mining Inc.