Terna Energy S.A.

Board/Management Information • Dec 17, 2025

Athens, 17.12.2025

APPOINTMENT OF NEW HEAD OF THE BONDHOLDDERS AND CORPORATE ANNOUNCEMENTS DEPARTMENT

The company "TERNA ENERGY FINANCE S.A." (hereinafter the "Company") informs the investors that in accordance with the decision of the Board of Directors dated 10.12.2025, and for purposes of administrative efficiency and optimal management of the Company's human resources, Mrs. Aikaterini Zygoulianou has been appointed as Head of Bondholder Services and Corporate Communications in replacement of Mr. Anestis Bakirtzis. The date of assuming her duties is 17.12.2025. The contact details are available on the official website of the Company.