Tetra Bio-Pharma Inc. — Proxy Solicitation & Information Statement 2022

Mar 18, 2022

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March 18, 2022

1500 Robert-Bourassa Blvd., 7th Floor Montreal QC, H3A 3S8 www.computershare.com

To: All Canadian Securities Regulatory Authorities

Subject: Tetra Bio Pharma 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 : April 14, 2022 Record Date for Voting (if applicable) : April 14, 2022 Beneficial Ownership Determination Date : April 14, 2022 Meeting Date : May 30, 2022 Meeting Location (if available) : Virtual Meeting 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 Beneficial Holders Stratification Criteria: NAA for Registered Holders

Yes Not Applicable No

Voting Security Details:

Description

COMMON SHARES

CUSIP Number ISIN 88166Y100 CA88166Y1007

Sincerely,

Computershare

Agent for Tetra Bio Pharma Inc.