Diagnos Inc — AGM Information 2023

Jul 31, 2023

July 28, 2023

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

To: All Canadian Securities Regulatory Authorities

Subject: DIAGNOS 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 Meeting Record Date for Notice of Meeting : August 24, 2023 Record Date for Voting (if applicable) : August 24, 2023 Beneficial Ownership Determination Date : August 24, 2023 Meeting Date : September 28, 2023 Meeting Location (if available) : Brossard, QC 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 SHARES 252442306 CA2524423068

Sincerely,

Computershare Agent for DIAGNOS INC