DEME · DEME GROUP · Investor Relations

Highlights Strong first-half performance Group turnover of 2.2 billion euros, up 2% from 2.1 billion euros a year ago EBITDA strong at 466 million euros, representing a margin of 21.6% Net profit up by 20% to 215 million euros, compared to 179 million euros in the prior-year period Order book at

DEME has been awarded a substantial contract for the transport and installation of foundations for phase 1 of the Zeevonk offshore wind project in the Netherlands. Zeevonk, jointly owned by Vattenfall and Copenhagen Infrastructure Partners (CIP) through its Energy Investment Fund I, will have a

DEME is further reinforcing its dredging fleet with the construction of a new 22,000 m³ trailing suction hopper dredger (TSHD), which will strengthen its long-term competitiveness in capital and maintenance dredging, land reclamation, and offshore seabed preparation.

DEME and The Oyster Restoration Company (TORC) have joined forces to deliver EuroReefs, which is set to become a landmark large‑scale offshore nature restoration project for native European flat oyster reefs. Commissioned by Belgium’s Federal Public Service Health, Food Chain Safety and Environment

DEME Group NV announces that its share buyback program, which commenced on April 2, 2026, was completed on June 16, 2026. The program involved the buyback of 31,500 shares for a total amount of 5,912,929.89 million euros. The average purchase price was 187.71 euros per share.

DEME has been awarded a contract by Navayuga Engineering Company Limited (NECL) to carry out capital deepening works for the development of Ramayapatnam Port, a deep-sea greenfield port located in Andhra Pradesh, India. Under the contract, DEME will execute the capital deepening of the entire

In accordance with the regulations, DEME Group NV hereby discloses information regarding the acquisition of own shares. All details related to the acquisition of own shares by DEME Group NV can be found on www.deme-group.com/ Attachment P2026 DEME SBB 20260615 ENG

In accordance with the regulations, DEME Group NV hereby discloses information regarding the acquisition of own shares. All details related to the acquisition of own shares by DEME Group NV can be found on www.deme-group.com/ Attachment P2026 DEME SBB 20260608 ENG

DEME has signed a dredging contract with the Office de la Marine Marchande et des Ports (OMMP) to enhance accessibility, safety, and compliance with international standards at several strategic ports in Tunisia. The project covers works at three locations – Sousse, Menzel-Bourguiba/Bizerte, and

In accordance with the regulations, DEME Group NV hereby discloses information regarding the acquisition of own shares. All details related to the acquisition of own shares by DEME Group NV can be found on www.deme-group.com/ Attachment P2026 DEME SBB 20260601