Standard Uranium Ltd. — AGM Information 2021

Sep 9, 2021

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September 09, 2021

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

To: All Canadian Securities Regulatory Authorities

Subject: STANDARD URANIUM LTD.

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 : October 04, 2021 Record Date for Voting (if applicable) : October 04, 2021 Beneficial Ownership Determination Date : October 04, 2021 Meeting Date : November 03, 2021 Meeting Location (if available) : Virtual Meeting Issuer sending proxy related materials directly to NOBO: Yes 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 COMMON CLASS 85422Q103 CA85422Q1037

Sincerely,

Computershare

Agent for STANDARD URANIUM LTD.