Rock Tech Lithium Inc. — AGM Information 2022

May 27, 2022

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Date: May 26, 2022

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

To: All Canadian Securities Regulatory Authorities

Subject: ROCK TECH LITHIUM 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 : May 27, 2022 Record Date for Voting (if applicable) : May 27, 2022 Beneficial Ownership Determination Date : May 27, 2022 Meeting Date : June 30, 2022 Meeting Location (if available) : Vancouver BC (AMENDED) 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 SHARES 77273P201 CA77273P2017

Sincerely,

Computershare

Agent for ROCK TECH LITHIUM INC.