Mr. Denis Jasmin reports

ATKINSREALIS TO HOLD ITS FIRST QUARTER EARNINGS WEBCAST AND CONFERENCE CALL AND ANNUAL MEETING OF SHAREHOLDERS

Atkinsrealis Group Inc. will hold its first quarter financial earnings webcast and conference call, and annual meeting of shareholders on Thursday, May 15, 2025.

Q1 2025 financial results

Atkinsrealis will hold a webcast and conference call to discuss and present its first quarter financial results. The public is invited to listen to the webcast or the conference call on Thursday, May 15, 2025, at 8 a.m. Eastern Time. Participants will be Ian L. Edwards, president and chief executive officer, and Jeff Bell, chief financial officer. Financial results will be released prior to the market open that day.

The live webcast of the conference call can be accessed using a link available in the original version of this news release. To participate to the conference call, please preregister using a link available in the original version of this news release. Registrants will receive a confirmation e-mail with dial-in details and a unique access code required to join the live call. The accompanying slide presentation will be posted on the company's website here on the day of the call, along with the release of the financial results.

A recording of the webcast and a transcript of the conference call will be available on the company's website within 24 hours following the call.

Annual meeting of shareholders

Atkinsrealis's annual meeting of shareholders will be held on Thursday, May 15, 2025, at 11 a.m. Eastern Time in the Lumi Experience offices, 1250 Rene-Levesque Blvd. West, suite 3610, Montreal, Que., Canada. Registered shareholders as of the close of business on March 27, 2025, and duly appointed proxyholders of record can attend the meeting in person or on-line.

Whether or not a shareholder plans to attend the meeting, the company urges all shareholders to vote and submit their proxy in advance of the meeting by one of the methods described in the proxy materials provided to shareholders.

Additional information related to the meeting can also be found in Atkinsrealis's 2025 management proxy circular which will be available soon on SEDAR+ and on the company's website.

About Atkinsrealis Group Inc.

Created by the integration of long-standing organizations dating back to 1911, Atkinsrealis is a world-class engineering services and nuclear company dedicated to engineering a better future for the planet and its people. The company creates sustainable solutions that connect people, data and technology to transform the world's infrastructure and energy systems. The company deploys global capabilities locally to its clients and delivers unique end-to-end services across the whole life cycle of an asset including consulting, advisory and environmental services, intelligent networks and cybersecurity, design and engineering, procurement, project and construction management, operations and maintenance, decommissioning, and capital. The breadth and depth of the company's capabilities are delivered to clients in strategic sectors such as engineering services, nuclear and capital.