DATA Communications Management Corp. — AGM Information 2021

Apr 20, 2021

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Date: April 20, 2021

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

To: All Canadian Securities Regulatory Authorities

Subject: DATA COMMUNICATIONS MANAGEMENT CORP.

Dear Sir/Madam:

We advise of the following with respect to the upcoming Meeting of Security Holders for the subject Issuer:

Annual General Meeting

Meeting Type : Record Date for Notice of Meeting : May 14, 2021 Record Date for Voting (if applicable) : May 14, 2021 Beneficial Ownership Determination Date : May 14, 2021 Meeting Date : June 25, 2021 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 Yes Beneficial Holders Stratification Criteria: Not Applicable NAA for Registered Holders Yes Registered Holders Stratification Criteria: Not Applicable

Voting Security Details:

Description COMMON SHARES

CUSIP Number ISIN 23761M102 CA23761M1023

Sincerely,

Computershare

Agent for DATA COMMUNICATIONS MANAGEMENT CORP.