Mr. Jerome Julier reports

AECON TO REJOIN S&P/TSX COMPOSITE INDEX

Aecon Group Inc.'s common shares will be added to the S&P/TSX Composite Index, effective prior to market open on Monday, Dec. 23, 2024. The S&P/TSX Composite Index is the principal benchmark for Canadian equity markets and includes the largest and most liquid publicly traded companies in Canada.

"Rejoining the S&P/TSX Composite Index is a significant accomplishment and is a testament to the hard work of our dedicated teams who have collectively helped Aecon reach this milestone," said Jerome Julier, executive vice-president and chief financial officer, Aecon Group.

"We look forward to the benefits that inclusion in the index can provide, including increased awareness with a broader range of potential investors, as we continue to execute on our strategy to drive long-term value for our shareholders," said Adam Borgatti, senior vice-president, corporate development and investor relations, Aecon Group.

Dividend

Aecon's board of directors has approved its next quarterly dividend of 19 cents per share. The dividend will be paid on Jan. 3, 2025, to shareholders of record as of Dec. 24, 2024.

About Aecon Group Inc.

Aecon Group is a North American construction and infrastructure development company with global experience. Aecon 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, management, and operations and maintenance services through its concessions segment.

We seek Safe Harbor.