Cenergy Holdings S.A.

Regulatory Filings • Oct 2, 2025

Brussels, 2 October 2025- 17:45 CET

Hellenic Cables to supply 66kV inter-array cables for East Anglia TWO offshore wind farm

Cenergy Holdings announces that Hellenic Cables, its cables segment, has been awarded a contract by Seaway7 for the supply of approximately 165 km of 66kV submarine inter-array cables and associated accessories for the East Anglia TWO (EA2) offshore wind farm in the UK.

EA2, developed by ScottishPower Renewables, is part of the East Anglia Hub, one of the UK's largest offshore wind developments. Located in the southern North Sea, approximately 32.6km off the Suffolk coast, the wind farm will comprise up to 64 wind turbines, with a planned capacity up to 960MW. Once operational, the offshore wind farm is expected to power the equivalent of approximately one million households.

The scope of Hellenic Cables includes the engineering, design, manufacturing, testing and supply of the cables as well as the supply of the associated accessories. Production will take place at Hellenic Cables' vertically integrated and state-of-the-art submarine cable plant in Corinth, Greece. Manufacturing is scheduled to begin in 2026, with final deliveries expected within the first half of 2027.

This award follows the contract for East Anglia THREE and further strengthens Hellenic Cables' collaboration with Seaway7 and ScottishPower Renewables.

Kostas Savvakis, General Manager, Hellenic Cables, stated: "We are pleased to continue our collaboration with Seaway7 and ScottishPower Renewables, contributing to the realization of the East Anglia offshore hub with reliable and high-quality cable solutions."

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.