Cenergy Holdings S.A.

Regulatory Filings • Dec 11, 2025

PRESS RELEASE

Brussels, 11 December 2025-5:45 pm CET

Hellenic Cables will deliver the submarine export cable system for Ocean Winds' BC-Wind project in Poland

Cenergy Holdings announces that Hellenic Cables, its cables segment, has signed a contract in consortium with DEME Offshore, for the engineering, procurement, construction, and installation (EPCI) of the offshore export cable system for the BC-Wind offshore wind farm in Poland.

Developed by Ocean Winds, an international offshore wind developer and a 50/50 joint venture between two major European energy players, EDP Renewables and ENGIE, BC-Wind is located about 23km off Poland's Baltic Sea coast. Once operational, the 390MW wind farm will supply clean electricity to approximately half a million households each year.

The comprehensive scope of the project includes the design, engineering, manufacturing, transportation, installation, termination, and testing of approx. 29km of 275kV HVAC offshore export cable, along with a complete spares package. The cable system will connect the offshore substation platform (OSP) directly to the landfall point, near Lubiatowo.

Cable production will take place at Hellenic Cables' state-of-the-art submarine cable plant in Corinth, Greece, with manufacturing scheduled for completion in 2027.

Kostas Savvakis, General Manager of Hellenic Cables, stated: "The contract for the BC-Wind project shows our ability to deliver comprehensive EPCI cable solutions in collaboration with trusted offshore partners such as DEME. It demonstrates Hellenic Cables' continued contribution to Europe's offshore wind development and Poland's transition to cleaner energy sources."

Pete Geddes, BC-Wind Project Director, Ocean Winds, said: "With the contract in place, Hellenic Cables and DEME will support us in delivering the offshore export cable system for BC-Wind. Their experience in submarine cable design and engineering ensures the project can be carried out safely and efficiently, contributing to Poland's ongoing energy transition and strengthening the European supply chain."

About Cenergy Holdings

Cenergy Holdings is a Belgian holding company listed on both Euronext Brussels and Athens Stock Exchange, investing in leading industrial companies, focusing on the growing global demand of energy transfer, renewables and data transmission. The Cenergy Holdings portfolio consists of Corinth Pipeworks and Hellenic Cables, companies positioned at the forefront of their respective high growth sectors. Hellenic Cables is one of the largest cable producers in Europe, manufacturing power and telecom cables as well as submarine cables. Corinth Pipeworks is a world leader in steel pipe manufacturing for the energy sector and major producer of steel hollow sections for the construction sector. For more information, please visit our website at www.cenergyholdings.com.