Members of the Management Committee

Gérard Mestrallet

Gérard Mestrallet

Chairman & Chief Executive Officer

Born April 1, 1949.

Education

  • Graduate of the École Polytechnique
  • Graduate of the École Nationale d’Administration

Professional experience

  • 2001-2008: Chairman and Chief Executive Officer of SUEZ
  • 1997-2001: Chairman of the Executive Board of Suez Lyonnaise des Eaux
  • 1995-1997: Chairman and Chief Executive Officer of Compagnie de Suez
  • 1991-1995: Executive Director and Chairman of the Management Committee of Société Générale de Belgique
  • 1986-1991: Senior Executive Vice-President in charge of industrial affairs
  • 1984-1986: Special Advisor at Compagnie de Suez

Principal other memberships and offices held

  • Chairman of the Board of Directors of GDF SUEZ Energy Services**, SUEZ Environnement Company** (France), Electrabel**, GDF SUEZ Belgium**
  • Vice-Chairman of the Board of Directors of Aguas de Barcelona** (Spain)
  • Director of Saint-Gobain (France), Pargesa Holding SA (Switzerland) and International Power** (United Kingdom)
  • Chairman of Paris EUROPLACE
  • Member of the Advisory Board of Siemens AG (from January 23, 2013 onwards)

** GDF SUEZ Group

 

Jean-François Cirelli

Jean-François Cirelli

Vice-Chairman and President, in charge of the Energy Europe Business line

Born July 9, 1958.

Education

  • Graduate of the Paris Institute of Political Studies
  • Graduate of the École Nationale d’Administration
  • Graduate in Law

Professional experience

  • 2004-2008: Chairman and Chief Executive Officer of Gaz de France
  • 2002-2004: Deputy Director of the Prime Minister’s Office
  • 1997-2002: Economic Advisor to the President of the Republic
  • 1995-1997: Technical Advisor to the President of the Republic
  • 1985-1995: different posts in the Treasury Department of the Economy and Finance Ministry

Principal other memberships and offices held:

  • Chairman of the Board of Directors of GDF SUEZ Trading** (France) and Eurogas (Belgium)
  • Vice-Chairman of the GDF SUEZ Corporate Foundation** and Electrabel** (Belgium)
  • Director of GDF SUEZ Energy Services**, SUEZ Environnement Company** (France), GDF SUEZ Belgium** and International Power** (United Kingdom)
  • Member of the Supervisory Board of Vallourec

** GDF SUEZ Group

 

Valérie Bernis

Valérie Bernis

Executive Vice-President in charge of Communications, Marketing and Sustainable Development

Born on December 9, 1958.  

Education

  • Graduate of the University of Limoges in Economics and of the Institut Supérieur de Gestion (Paris)

Professional career

  • 2001: Executive Vice-President of SUEZ, in charge of Communications and Sustainable Development and member of the Executive Committee
  • 1999-2004: Chief Executive Officer of cable channel Paris Première
  • 1997-2001: Senior Vice-President for Financial and Corporate Communications and Special Advisor to the President of Suez Lynonnaise des Eaux
  • 1995-1997: Communications Director at Compagnie de Suez
  • 1993-1995: Press and Communications Officer for Paris Representative Edouard Balladur
  • 1988-1991: Communications Director at Cerus
  • 1986-1988: Member of the office of the French Ministry of Economics, Finance and Privatization

Other memberships and offices held

Independant Director:

  • Member of the Supervisory Board of Euro Disney. Member of the Audit Committee
  • Member of the Board of BULL. Member of the Audit Committee

Other memberships held:

  • Director of SUEZ-Tractebel
  • Director of Société Monégasque d’Electricité et de Gaz (SMEG)
  • Director of SUEZ ENVIRONNEMENT
  • Director of SUEZ Energy Resources NA (SERNA)

 

Jean-Marie Dauger

Jean-Marie Dauger

Executive Vice-President, in charge of the Global Gaz & LNG Business Line

Born April 27, 1952.

Education

  • Graduate of the HEC business school

Professional career

  • Since 2011: Chairman of the Board of Directors of GDF SUEZ E&P International
  • Since 2008: Director of Electrabel
  • Since 2004: Chairman of the Board of Directors of GDF SUEZ E&P Norge AS
  • 2007-2008: Chief Operating Officer of Gaz de France and Head of the Global Gas & LNG Business Line of Gaz de France
  • 2000-2007: Executive Vice President of Gaz de France in charge of energy supply, production and trading for the Group and of International development
  • 1995-2000: Head of the Strategy and Control of Gaz de France
  • 1991-1995: Head of the Gas Supply Division of Gaz de France
  • 1985: joined the Gas Supply Division of Gaz de France
  • 1978-1985: Production and Transmission Division of Gaz de France

Jean-Marie Dauger began his career in different positions at Péchiney, Trad Bank (Lebanon) and in the Finance Division of EDF.

Other memberships and offices held

  • President of the France-Algeria Council of Chief Executives – MEDEF International

 

Jean-Claude Depail

Jean-Claude Depail

Executive Vice-President, in charge of the Infrastructures Business Line

Born in 1949.

Education

  • Degree in Engineering at ENSEM in Nancy (France’s elite school of electricity and mechanics)
  • Master’s degree in physical sciences
  • Master’s degree in Economics

Professional career

  • 2007 – 2010: Chief Operating Officer of the Global Gas & LNG Business Line
  • 2003 – 2007: Head of the France Négoce in charge of gas supplies, responsible for optimizing natural gas management and for sales to major clients in Europe
  • 2000 – 2003: Head of Sales and Marketing for France Négoce
  • 1999 – 2000: Head of Key Accounts for Gaz de France
  • 1998 – 1999: prepares the sales organization of Gaz de France for major accounts following the adoption of the first gas directive
  • 1993 – 1998: joins the Sales Division, in charge of relations with major industrial accounts
  • 1990 – 1993: Head of the Normandy Region of the Transportation Production Division of Gaz de France
  • 1986 – 1990: Regional Delegate to Angoulême for the Compagnie Française du Méthane, a subsidiary of Elf, Total and Gaz de France
  • 1983 – 1986: Head of the Research Department in charge of designing the transportation network
  • 1978 – 1983: joins the Transportation Production Division of Gaz de France
  • 1973 – 1978: joined the Economic Research Department of the Economic and Commercial Division of Gaz de France

Other memberships and offices held

  • President of the European Association of Infrastructure Operators

 

Henri Ducré

 

Henri Ducré

Executive Vice-President, in charge of Group Human Resources

Born on April 14, 1956.   

Education

  • Graduate of the Ecole Nationale Supérieure des Arts et Métiers

Professional career

  • 2007: Vice-President of the Gaz de France Energy France Branch
  • 2004: Director of EDF Gaz de France Distribution
  • 2002: Director of Distribution and Sales of EDF’s Americas Division
  • 2001: General Manager of Edenor (an EDF subsidiary in Argentina)
  • 1979: Joins the Distribution Division for EDF and Gaz de France. Holds various responsibilities within EDF GDF Services, the joint distribution division for the two companies, particularly as Director of the Pyrénées Gascogne Center and as Director of the Group Mediterranean Centers

 

Isabelle Kocher

Isabelle Kocher

Executive Vice-President, Chief Financial Officer

Born on December 9, 1966.

Education

  • Isabelle Kocher is a graduate from Ecole Normale Supérieure, one of the most prestigious Ivy League French school. She holds a Postgraduate Certificate in Physics. Isabelle Kocher is a Graduate from the Corps des Mines Engineering School.

Professional career

  • Isabelle Kocher initiates her industrial experience between 1991 and 1997 by becoming Project Manager for the reorganisation of production workshops within the Société Européenne de Propulsion. She will join as well between 1992 and 1993 the mergers and acquisitions department of the Compagnie Financière de Rothschild before becoming Director of the industrial inspection department at the Ile-de-France regional department of industry, research and environment division. From 1997 to 1999, Isabelle Kocher became Director of the postal and telecommunication budgets, followed by the defense budget at the French Budget Department. She will then be promoted as Industrial Affairs Advisor to the Prime Minister of France.
  • Isabelle Kocher joined the SUEZ Group in 2002, then GDF SUEZ, within which she holds, since 12 years, functional and operational positions. Between 2002 and 2005, Isabelle Kocher is Vice President in charge of the strategic overview of the SUEZ Group and the strategic monitoring of Suez Environnement. She will become in 2005, Senior Vice President in charge of Performance and Organization programs before being promoted in 2007 Chief Operating Officer of Lyonnaise des Eaux (subsidiary of Suez Environnement). In 2009 Isabelle Kocher becomes Managing Director of Lyonnaise des Eaux, as well as Executive Vice President in charge of the development of water activities in Europe within Suez Environnement. Since 2011, Isabelle Kocher is Chief Financial Officer of GDF SUEZ.

Other memberships and offices held

  • Isabelle Kocher is a member of the board of Suez Environnement, International Power and AXA Group.

 

Jérôme Tolot

Jérôme Tolot 

Executive Vice-President, in charge of the Energy Services Business Line

Born on January 4, 1952.

Education

  • Graduate of INSEAD and l’Institut d’Etudes Politiques de Paris
  • Holds a DESS in Economics

Professional career

  • 2005: Executive Vice-President of SUEZ Energy Services
  • 2002: Executive Vice-President of SUEZ and member of the Executive Committee
  • 1982: joins Lyonnaise des Eaux after working as a consultant with McKinsey. Serves successively as Senior Vice President of Degrémont, Senior Executive Vice President of GTM Group, then Vinci. Chairman and CEO of SITA

Other memberships and offices held

  • Director of Société Monégasque d’Electricité et de Gaz (SMEG)
  • Director of SUEZ ENVIRONNEMENT
  • Director of GDF SUEZ University
  • Director of GTI, Ineo, Axima Services and Fabricom


 

Willem van Twembeke

Willem van Twembeke

Executive Vice-President, in charge of the Energy International business line

Born in 1965.

Education

  • Master of Business Administration, 1994, Catholic University of Louvain (Belgium)
  • Postgraduate in de Bedrijfskunde, 1992, Catholic University of Louvain (Belgium)
  • Master in Engineering, major Nuclear Science, 1990, the Rensselaer Polytechnic Institute, New York (U.S.A)
  • Master of Science in Electromechanical Engineering, major Electrical Power, 1988, Catholic University of Louvain (Belgium)

Professional career

    • 2011 – 2013: President & CEO GDF SUEZ Energy Asia
    • 2010 –  2011: COO GDF SUEZ Energy Latin America
    • 2006 – 2010: Deputy General Manager Trading and Portfolio Management, Electrabel (Belgium)
    • 2004 – 2006: CEO SUEZ Energy Peru and EnerSur (Peru)
    • 2004 – 2005: CEO of Gas Natural de Lima y Callao (Peru)
    • 2001 – 2004: Chief Executive Officer of Electroandina S.A. (Chile)
    • 2000 -  2001: Commercial director EnerSur (Peru)
    • 1997 – 2000: Site manager of the Nehuenco power plant and Site manager /Operations manager of the Tocopilla power plant (Chile)
    • 1991 – 1997: Tractebel Energy Engineering (Belgium)