Mr. Adam Borgatti reports

AECON ANNOUNCES VOTING RESULTS OF ANNUAL GENERAL MEETING

The nominees listed in Aecon Group Inc.'s management information circular dated May 3, 2022, were elected as directors of Aecon, to hold office until the close of the next annual meeting of the corporation or until their successors are appointed.

Shareholders also adopted all other resolutions submitted for their approval, including the advisory vote on the corporation's approach to executive compensation, as disclosed in the management information circular dated May 3, 2022, and the appointment of PricewaterhouseCoopers LLP as the auditor of the corporation to hold office until the close of the next annual meeting of the corporation and that the board of directors be authorized to fix the auditor's remuneration.

The complete voting results for each item of business are as shown in the attached table.

About Aecon Group Inc.

As a Canadian leader in construction and infrastructure development with global expertise, Aecon Group (TSX: ARE) strives to be the No. 1 Canadian infrastructure company and is proud to be recognized as one of the Best Employers in Canada. Aecon safely, profitably and sustainably delivers integrated solutions to private and public-sector clients through its construction segment in the civil, urban transportation, nuclear, utility and industrial sectors, and provides project development, financing, investment and management services through its concessions segment.

We seek Safe Harbor.