Management

Efstathios Tsotsoros
Chairman of BoD and CEO, Executive Board Member

He is an Electrical-Mechanical Engineer from NTUA, graduate Economist of the Department of Economics at the University of Athens, Emeritus Professor of Panteion University (2017) and Professor on Economic Development and Social Transformation (1975-2017). He served as a member of the Council and the Senate of the University and he was Director of the Postgraduate program, as well as of the Economic and Social Research Centre, the Department of Sociology.

He has particularly important and extensive experience in senior management positions in both public and private sectors as well as in local government. He has served as Director of PPC, Board Member and CEO of the Business Reconstruction Organization, Vice President and General Manager of the Athens Regulatory Plan & Environmental Protection Organization, as a Board Member and CEO of various companies in the private sector and Founder, Chairman and CEO of the Alpha Broadcasting Group. He has also advised the Minister of Energy, the Mayor of Athens, the President of the Greek Technical Chamber and has occupied the post of Chairman of the Technical Chamber of Greece and Chairman of the Program Agreements and Development Contracts Committee. From May 2015 until today he is the Executive Chairman of BoD of HELPE SA and EKO ABEE and since April 2018 Chairman and CEO of HELPE SA.

He has participated in research projects and in the preparation of technical and economic studies, major investment projects, as well as national and regional development programs. His scientific research has been published by the Educational Institutions of the National Bank of Greece, by Commerce and Piraeus Banks, as well as the National Research Foundation and Papazisis Publications.

Andreas Shiamishis
Deputy CEO and Group CFO, Executive Board Member

Holds an Economics degree specialising in Econometrics from the University of Essex, UK, and is a Fellow (F.C.A.) member of the Institute of Chartered Accountants in England and Wales.

He began his career in 1989 working for KPMG Certified Auditors and Advisers in London where he specialised in the banking sector and in organization and strategy for large multinational groups. From 1993 to 1999, he worked as a manager of the DIAGEO Food and Beverages Group in European markets, with positions of responsibility in finance and strategy. In Greece, he held the position of Chief Financial Officer at METAXA until 1998, and later went on to become Regional Finance and Business Development Director with responsibility for the Middle East and North Africa for Pillsbury Group (part of DIAGEO).

From 2000 to 2002, he worked as Chief Financial Officer and Chief Restructuring Officer in a LEVENTIS Group listed company before joining PETROLA HELLAS in 2003 where he worked as Chief Financial and IT Officer.

Following PETROLA’s merger with HELLENIC PETROLEUM in 2004, he was appointed Group Chief Financial Officer and a Member of the Group's Executive Committee, and from 2014 to 2015, he became Deputy Chief Executive Officer of the Group, a post he took over once again in June 2017. He is an active participant on various ICAEW committees in Greece and abroad, is a member of the Economic Chamber of Greece, the Corporate Governance Committee of the Hellenic American Chamber of Commerce and various Hellenic Federation of Enterprises committees.

Georgios Alexopoulos
General Manager Group Strategic Planning & New Business, Executive Board Member

As General Manager of Strategic Planning and New Business for HELLENIC PETROLEUM Group, he is responsible for the strategic planning, and management of new business development in natural gas, electricity, Renewable Energy Sources, Exploration and Production, as well as the Group’s representation in international organizations. He has been a member of the Board of Directors of the European Petroleum Refiners Association as a regular or alternate member since 2012, and has worked for HELLENIC PETROLEUM Group since 2007.

He held the position of Director of Strategic Planning and Development in an international group of companies (SETE S.A.) based in Geneva, Switzerland, from 1998 to 2006, where he was responsible for overseeing the Group's energy portfolio.

Previously, he worked for a number of technical and executive positions at companies including Stone & Webster, Molten Metal Technology, Merck, Dow Corning and Dow Chemical in the United States between 1993 and 1997.

He holds an MBA degree (1998) from the Harvard Business School and an M.Sc. (1993) and B.Sc. (1992) in Chemical Engineering from the Massachusetts Institute of Technology (MIT).

Ioannis Apsouris
General Manager Group Legal Services

Attorney at Law, qualified to plead before the Supreme Court, holds a Law degree from the Athens University and a Master’s Degree (DEA) from the University of Aix-en- Provence, France.

He was a partner at “Dryllerakis & Associates Law Firm”, handling cases of corporate, commercial and civil law. He is Chairman of the Board of ELPET BALKANIKI S.A. and VARDAX S.A, Group’s subsidiaries, he serves on the Boards of three other Group subsidiaries and until December 2018 was a member of the Supervisory Board of DESFA SA.

Since January 2019, he is a member of the Hellenic Corporate Governance Council (HCGC). He speaks Engligh, French, Spanish and Italian.

Ioannis Grigoriou
General Manager Exploration & Production

He is a mining engineer (NTUA) and Geophysicist (MSc Applied Geophysics, University of Leeds, UK), with 36 years of experience in oil industry. He began his carrier as geophysicist at DEP S.A. (at 1982) and gradually specialized in upstream exploration, undertaking various managerial positions.

Since 1998 he has been working at HELLENIC PETROLEUM, initially in Group strategic planning and development of new activities sector and then, from 2005 until today, in the field of E&P, passing from all levels of management. He served as advisor to EU Commission on energy strategy and evaluation of research proposals, as well as a Board member of the Group’s marketing subsidiaries and of he is Managing Director of HELPE Upstream and HELPE Patraikos subsidiaries. He also serves as the elected Deputy Chairman of the Scout Group's BoD of 76 oil companies operating in Exploration and Production in Central-Eastern Europe & Caspian (CEEC Scout Group).

Georgios Dimogiorgas
Senior Manager of Oil Handling, Technical Support, R&D and Refineries Transformation Division

A Chemical Engineer (B.Sc.), a graduate of the POLYTECHNIC UNIVERSITY of NEW YORK, USA and an M.Sc. holder from the same university with a specialization in Process Design, Technical-Economic Studies, Thermodynamics and Business Administration. In 1985, he was recruited to the former ELDA SA where he assumed various positions of responsibility until 1998. From 1998 to 2007, he was appointed Deputy Director and then Director of Supply of Transportation, Sales and Risk Management to the Oil Supply and Trading General Division of HELLENIC PETROLEUM SA. From 2007 to 2009, he served as Senior Manager of the Elefsina Refinery and until 2015, held the post of Senior Manager of the Group’s Industrial Installations at the Aspropyrgos and Elefsina Refineries as well as Coordinator of the Supply Chain Optimization Project.

From 2015 to January 2019, he took over the Group's Reorganization and Development Division. Today, he holds the position of Senior Manager of the Group's Refinery, Technical Support, R&D and Refinement Division. He has served as Chairman of the Board of Directors of the subsidiary Global SA and as a member of the BoD of ASPROFOS SA.

Roberto Karahannas
General Manager Domestic & International Marketing

An economist specialized in Finance and Accounting. A Fulbright scholar, he studied in the United States and holds a post graduate degree in Business Administration (MBA) from Lehigh University, Pennsylvania. He is a member of ΦΒΚ (Phi Beta Kappa), ΒΓΣ (Beta Gamma Sigma) and ΒΑΨ (Beta Alpha Psi) honorary societies. A Certified Public Accountant (CPA), he is a member of the AICPA (American Institute of Certified Public Accountants) with extensive experience in management positions in several sectors of the economy such as financial information, maritime and energy. He worked in Cyprus as an auditor for Coopers & Lybrand (now PricewaterhouseCoopers). In 1995 he moves to Greece as an Area Finance Manager for Dow Jones Telerate, where he also held the position of the President of the Board of Directors. In 2001 and for the next 5 years, he works in the marine sector for Royal Olympic Cruises and Capital Maritime & Trading. Since 2006 he works for the HELLENIC PETROLEUM Group, originally as the Group Controller, later as the Finance Director of EKO ABEE and Domestic Marketing. Today he is the General Manager of Domestic and International Marketing for the HELLENIC PETROLEUM Group and President at the Hellenic Petroleum Marketing Companies Association (SEEPE). He participates actively on several BoD’s of HELLENIC PETROLEUM companies in Greece and abroad as well as on a number of group committees regarding investments, credit assessment and remuneration.

Aggelos Kokotos
General Manager Group Internal Audit

A Chemical Engineer with a Master’s in Business Administration, initially worked as an engineer before being promoted to Head of Handling & Losses at the Aspropyrgos Refinery and then as Manager of Human Resources. He has worked for five years, respectively, as General Manager of Human Resources & Administrative Services for both the HELLENIC PETROLEUM Group and DEPA. He was Chairman of DIAXON SA and the last four years he is General Manager of the Group’s Internal Audit.

Alexandros Parginos
Deputy General Manager of Refining

He holds a Bachelor's and Postgraduate Diploma in Petroleum Engineering from the Universities of Texas and Missouri in the US.

He started his career in 1986 at ELDA SA as a Production Engineer at the Aspropyrgos Refinery and has continued working with HELLENIC PETROLEUM until today. He took on different positions of responsibility at the Aspropyrgos and Elefsina Refineries and climbed throughout the hierarchy, acquiring significant experience in a variety of specialized technical and administrative issues. He has also been a member of the Board of Directors of OKTA since 2016.

As Deputy General Manager of Refining, he contributes to the Refineries and Chemicals’ long-term development strategy in line with the Group's business objectives and is responsible for achieving the annual, medium and long-term objectives in improving the Refineries and Chemicals’ competitiveness, transformation goals and optimization of Refining operations.

Constantinos Panas
General Manager Supply & Trading

A Chemical Engineer and graduate of the National Technical University of Athens, in 1989 he joined EKO in the Thessaloniki refinery’s planning department. In 1996, he was appointed Head of Business Planning at the Public Petroleum Corporation (DEP SA), followed in 1998 by his appointment as Director of Business Planning and Development at HELLENIC PETROLEUM and then as the Head of Supply and International Sales in 2007. Since 2010, he has held the position of General Manager of Supply and Trading of Petroleum Products at HELLENIC PETROLEUM. Born in 1959, he is married and has a son.

Stylianos Triantafyllou
Deputy General Manager Refining, Head of the Group’s Large Maintenance and Projects Division

A Mechanical - Electrical Engineer graduate from the National Technical University of Athens, with 35 years of experience in the Oil Industry, he began working for ELDA SA in 1984, initially as an engineer before being promoted to Maintenance Manager. Since 1998, when the company was renamed HELLENIC PETROLEUM SA, he took over the Maintenance and Projects at the Aspropyrgos Refinery initially and after the merger with Petrolla SA in 2003, he was assigned the same responsibilities for the Elefsina Refinery. From 2015 until 2017, he served as Director of the Aspropyrgos Refinery and from 2018 until today he has assumed the position of Deputy General Manager and Head of the Group’s Large Maintenance and Projects Division. He is also a member of the Board of Directors of the subsidiary company DIAXON SA.

Stamatia Psyllaki
General Manager Group Human Resources & Administrative Services

She holds a Bachelor Degree from the Faculty of Political Science and Public Administration/School of Economics and Political Science of the National & Kapodistrian University of Athens, as well as an MBA. She started her professional career at the Aspropyrgos Hellenic Refinery in 1985 and continued in the HELLENIC PETROLEUM Group until today. During this period, she gained experience in executive positions of responsibility in all fields of Human Resources of the HELLENIC PETROLEUM Group, in Greece and abroad. After passing all levels of the hierarchy, in October 2015 she was appointed General Manager of Group Human Resources and Administrative Services. She has significant experience and expertise in Human Resources Management, on issues of policies and systems, labour relations, organizational development and education, performance evaluation, etc. She is a member of the Hellenic Economic Chamber.