Aecon Group Inc. (TSX: ARE) (“Aecon”) announced that Simcoe Battery Project General Partnership Inc., in which Aecon Concessions is an equity partner, has executed an Energy Storage Facility Agreement with Ontario’s Independent Electricity System Operator (“IESO”) to build, own and operate the 150 MW / 1,200 MWh Simcoe Battery Energy Storage System Project (“Simcoe Battery Project”) in Norfolk County, Ontario. Through its completed and ongoing work, including the Simcoe Battery Project, Aecon projects represent approximately 1 GW of Ontario’s delivered or planned projects. In addition to the Oneida Energy Storage Project, Aecon’s portfolio of related work in Ontario includes the completed York Battery Energy Storage System (“BESS”) and Goreway BESS facilities, as well as the ongoing South March BESS and Trail Road BESS projects. Statement on Forward-Looking Information:The information in this press release includes certain forward-looking statements which may constitute forward-looking information under applicable securities laws. While Aecon believes that such third-party sources are reliable sources of information, Aecon has not independently verified the information.