Georgios Perdikaris was born in Lefkada in 1959 and has a degree in Electrical Engineering from the Polytechnic School of AUTh. He started his professional career as a construction engineer at ETKA SA (now TERNA ENERGY SA), while he has directed as Site Officer and Project Manager large and complex construction projects as well as infrastructure projects. He currently serves as Chairman of the Board of Directors of TERNA SA, the Group’s construction arm. He has long been a senior executive of the GEK TERNA Group and a board member of its companies. He holds the positions of Senior Executive, Management Advisor, Member of the Executive Committee and Chairman of the Company’s Investment Committee.

Born in Athens in 1952, he graduated from Varvakeio High School and holds a degree in Surveying Engineering from the Polytechnic School of Aristotle University of Thessaloniki and a degree in Civil Engineering from the National Technical University of Athens. He also holds a 4th Grade Degree (general) in the Registry of Experienced Constructors.

His professional activity started at GEK S.A. in 1979 of which he was a member of the Board of Directors since 1981, from 2000 to 2019 he was a member of the Board of Directors of TERNA S.A. (Chairman of BoD between 2011-2016), while since 2005 he was in charge of the Group’s activities in the MENA area.

Chronologically, his involvement in the GEK TERNA Group:

• From 1981 to 2004: Executive Member of the BoD of GEK S.A.
• From 2000 to 2019: Executive Member of the BoD of TERNA S.A. (Chairman of the Board 2011–2016)
• From 2011 to 2015: Executive Vice Chairman of the BoD, from 2015 to 2023: Executive Member of the BoD and from 2023 to 2025: Non-Executive Member of the BoD of GEK TERNA.

Since 2017, he has served as Head of Regulatory Compliance and since 2019, he has also held the position of Chief Risk Officer of the GEK TERNA Group. At the same time, he has served as director and/or member of the Board of Directors of numerous subsidiaries and affiliated companies of the GEK TERNA Group in Greece and abroad.

He is a graduate of the Athens School of Economics and Business (ASOEE), now Athens University of Economics and Business (AUEB), with many years of professional experience in various companies. He has served as Chief Financial Officer in large technical construction Joint Ventures (1980 – 2000) and from 2002 to 2005 he served as Chief Financial Officer in the listed company ATHENS S.A.

Since 2006 he has joined the financial services of GEK TERNA Group and from 2008 until today, he holds the position of Chief Financial Officer of GEK TERNA Group, with main responsibilities the compliance with tax and commercial legislation and any other related to the company’s activities, as well as the preparation of individual and consolidated financial reports of budgets and reports, audited by external accountants, as well as compliance with tax and commercial legislation and any other legislation related to the company’s activities.

In addition, he represents GEK TERNA before any natural or legal person, Private or Public Law, the Greek State, the Banks as well as generally before any person and any Authority, domestic or foreign, throughout its activity, by jointly signing with another authorized member of the BoD.

In the context of his duties he is a Member of the Board of Directors of the Group’s subsidiaries: NEA ODOS S.A., ODOS KENTRIKIS ELLADOS S.A., NEA ATTIKI ODOS S.A., ILIOCHORA S.A., ARGOLIKI RIVIERA S.M.S.A., AG. NIKOLAOS PIRAEUS CAR PARK S.A. and GEK TERNA FTHIOTIDAS S.M.S.A.

Graduate of the Athens School of Economic and Commercial Sciences (ASOEE) with professional activity as an Accountant and Business Tax Advisor since 1977. Since 1987, among other roles, he is the Managing Director of the company under the name “Taxistiki S.M.S.A. Accounting, Tax Consultancy Auditing Company”. Since 1998 he has been a lecturer at Tax Seminars and author of accounting books. He participated as an independent, non-executive member of the Board of Directors of TERNA ENERGY S.A. from 2007 to 2018. He was a member of the Audit Committee of the same company, which belongs to the Masdar Group and Chairman the Audit Committee of its subsidiary, TERNA ENERGY S.M.F.C.A. He has significant experience in Internal Audit, having served as Internal Auditor since 2001 for listed companies on the Stock Exchange such as Hermes Real Estate Enterprises SA, KEKROPS SA and GEK SA. He also served as internal auditor at TERNA SA, with a dependent employment relationship, from 2002 to 2009. He is also an accounting and tax consultant for E.Y.D.E – E.T.A.K of the Ministry of Development. He is also a member of the Greek and American Institute of Internal Auditors (AM 1374) – (ID 1521425).

Ms. Danae Kalantidi is Head of Sustainable Development at the GEK TERNA Group and is responsible for integrating ESG principles into the Group’s business planning and all of its operations, in accordance with international and national regulations and trends. Ms. Kalantidi joined the Group’s Corporate Relations and Sustainable Development Division in 2013, having previously worked for more than twelve (12) years as a communications consultant. She holds a BSc in Business Administration from the American College of Greece. Ms. Kalantidi represents the Group on the ESG Committee of the Hellenic Federation of Enterprises (SEV).

Born in Athens, Mr. Kourniotis studied Law at the National and Kapodistrian University of Athens. He completed postgraduate studies in Business Administration (MBA) at the University of Strathclyde, in European Law (LLM) at the University of Leicester and in International Commercial Arbitration (CAS Arbitration) at the University of Lucerne and the University of Neuchâtel (joint postgraduate program). He holds a Professional Education and Training Certificate in Tax Law from the Athens University of Economics and Business and a Professional Certification in International Commercial Arbitration from the Swiss Arbitration Academy. He is a practicing lawyer at the Supreme Court and the Council of State. He has over twenty years of experience as a partner in major Athens law firms.

She is a graduate of the Athens University of Economics and Business (ASOEE) – Department of Accounting and Finance, holds a degree in Auditing and Accounting from the Training Institute of the Institute of Certified Public Accountants (2007-2011). She is a Certified Public Accountant. From 2006 until 2014 she worked as an external auditor at Ernst Young Greece with the object of regular audit of financial statements, audit for obtaining a tax certificate and participation checks on the issuance of bond loans. In 2014 she joined GEK TERNA Group as Head of the Internal Audit Unit. She has experience in internal audit, corporate governance, risk management, information systems, capital market compliance under Greek and European legislation, Global Internal Audit Standards and other regulatory requirements.

He holds a degree in Applied Informatics from the University of Macedonia and an MSc in Banking and Finance from the University of Sheffield. From 1998 to 2010, he managed institutional and private funds, holding relevant positions of responsibility and after 2010 he served as a business executive with responsibilities in finance, financial management, investor relations and mergers and acquisitions. Since 2023, he has served as Head of Shareholder Services & Corporate Communications of the GEK TERNA Group. He is a member of the Economic Chamber of Greece.