DEME Group NV

AGM Information • Apr 17, 2025

PRESS RELEASE Regulated information May 21, 2025, 5:45 pm CET

ANNUAL AND EXTRAORDINARY GENERAL MEETING 2025

DEME (Euronext: DEME) held its Annual and Extraordinary General Meeting today at the DEME headquarters. Reference is made to the agendas as shared in the convening notice. The shareholders have approved all agenda items of both the Annual and the Extraordinary General Meeting.

Following the proposal of the Board of Directors, the shareholders have approved the distribution of a gross dividend of 3.8 euro per share. The dividend will be distributed according to the following timetable:

• May 27, 2025 Ex-dividend date
• May 28, 2025 Record date
• May 30, 2025 Dividend payment date

At the recommendation of the Audit Committee, the shareholders have approved the renewal of the mandate of Ernst & Young Bedrijfsrevisoren BV as Statutory Auditor for a period of three years until the closing of the Annual General Meeting in 2028, as well as the renewal of their mandate for the assurance for the (consolidated) sustainability information for the same duration.

Furthermore, the shareholders have approved the remuneration report with respect to the fiscal year ending December 31, 2024. This report is included in the Corporate Governance report of DEME's Annual Report 2024.

Lastly, during the Extraordinary General Meeting, the shareholders have approved the renewal of the authorizations granted to the Board of Directors in the framework of the authorized capital and the acquisition and disposal of own shares.

The presentation and the minutes of the meetings will be made available shortly on www.demegroup.com.

Financial calendar

• August 26, 2025 Half year 2025 results
• November 13, 2025 Trading update Q3 2025

About DEME

DEME (Euronext Brussels: DEME) is a leading contractor in the fields of offshore energy, environmental remediation, dredging, and marine infrastructure. DEME also engages in concessions activities in offshore wind, marine infrastructure, green hydrogen, and deep-sea mineral harvesting. The company can build on nearly 150 years of experience and is a front-runner in innovation and new technologies. DEME's vision is to work towards a sustainable future by offering solutions for global challenges: climate change, a growing population and urbanization, increasing maritime trade, and environmental issues. With a team of more than 5,800 highly skilled professionals and one of the most advanced fleets in the world, DEME is well-positioned to tackle even the most complex projects. DEME realized a turnover of 4.1 billion euros with an EBITDA of 764 million euros in 2024. For more information, please visit www.deme-group.com.

Contact

Media relations Investor relations Frederic Dryhoel Carl Vanden Bussche +32 473 86 31 91 +32 498 90 61 13

dryhoel.frederic@deme-group.com vanden.bussche.carl@deme-group.com