ADENTRA Inc. — Proxy Solicitation & Information Statement 2023

Mar 2, 2023

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Date: March 1, 2023

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

To: All Canadian Securities Regulatory Authorities

AMENDED – SEE HIGHLIGHTED Subject: ADENTRA 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 : March 21, 2023 Record Date for Voting (if applicable) : March 21, 2023 Beneficial Ownership Determination Date : March 21, 2023 Meeting Date : May 11, 2023 Meeting Location (if available) : Virtual Meeting 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 Yes Beneficial Holders Stratification Criteria: Not Applicable NAA for Registered Holders No

Voting Security Details:

Description CUSIP Number ISIN COMMON 00686A108 CA00686A1084

Sincerely,

Computershare Agent for ADENTRA Inc.