DIRTT Environmental Solutions Ltd. — Proxy Solicitation & Information Statement 2025

Feb 21, 2025

Computershare
324-8th Avenue SW, 8th floor
Calgary AB, T2P 2Z2
www.computershare.com

Date: February 21, 2025

To: All Canadian Securities Regulatory Authorities

Subject: DIRTT ENVIRONMENTAL SOLUTIONS LTD.

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, 2025
Record Date for Voting (if applicable) : March 21, 2025
Beneficial Ownership Determination Date : March 21, 2025
Meeting Date : May 09, 2025
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	CUSIP Number	ISIN
COMMON SHARES	25490H106	CA25490H1064

Sincerely,

Computershare

Agent for DIRTT ENVIRONMENTAL SOLUTIONS LTD.