Board of Directors & Specialized Comittees

Board of Directors


Chairman of the board & CEO

Philippe Berterottière joined GTT in 2009. He has more than 35 years of experience in advanced technology sectors. Previously, he served in various senior positions with aerospace companies. At Airbus, he was a contract negotiator, before being appointed head of business development. He was sales director at Matra’s defence division and held various sales and marketing responsibilities at Arianespace, before being named Sales and Marketing Director and an Executive Committee member. He is a graduate of the prestigious HEC business school (Hautes Etudes Commerciales) and of the IEP (Institut d’Etudes Politiques).


An IT engineer and HEC graduate, Michèle Azalbert occupied a number of treasury, finance and market risk management positions at Elf Aquitaine from 1992 to 1996, Sanofi from 1996 to 1999, then at Suez from 1999 to 2005. She served as Treasurer for the Suez group from 2005 to 2008. In 2008, she was appointed Chief Operating Officer of Gaselys. From 2011 to 2013, she was Chief Operating Officer of ENGIE Global Market (formerly GDF SUEZ Trading), responsible for Support Functions. From 2013 to 2017, she occupied the position of Chief Operating Officer of the Global LNG business unit of ENGIE, responsible for contract management & trading in Liquefied Natural Gas. On January 1, 2018, Michèle Azalbert took over the General Management of a new ENGIE business unit dedicated to renewable hydrogen.


Ana Busto received a Master’s degree from the Institut Supérieur de Traducteurs et Interprètes de Belgique (Belgian Institute for Translators and Interpreters, ISTI) and a Master’s in Communication from the Rotterdam School of Management in the Netherlands.
She began her career in Prague in 1994 as cultural attaché for the Belgian civil service, then worked as a consultant for the European Commission from 1998 to 2000, based in Latvia. She joined the international corporate law firm Clifford Chance in the Netherlands in 2000 as Communications Manager. She then joined Steria Group in 2005 as Internal Communications Manager. She moved to Sodexo as Vice-President, Internal Communications in 2008. She became Chief Brand and Communications Offi cer of the group in 2012 and became a member of the Executive Committee in 2014. On 1 October 2016, she was appointed Senior Vice-President Brand and Communications at ENGIE Group.


Christian Germa is an engineering graduate of the École Polytechnique (1992) and the École Nationale des Ponts et Chaussées (1995). He began his career at the French Ministry for the Economy and Finance, within the Treasury Department, where he worked for several years on the CIRI, the Interministerial Committee on Industrial Restructuring, where he served as Deputy Secretary-General. In 2000 he joined the FD5 investment company as head of investment. From 2002 to 2014, Christian Germa gained experience within the Vinci Group, where he successively held positions as director of construction projects, then director of public-private partnerships for Vinci Construction France. During this time, Christian Germa held several directorships as an independent director, from 2010 to 2012, on the Board of Directors of Vodafone SA and, since 2004, on the Supervisory Board of Faiveley Transport, where he is also Chairman of the Audit Committee.


Judith Hartmann is Deputy Chief Executive Officer of ENGIE in charge of Finance and supervision of BUs in North America and the United Kingdom. Of Austrian nationality, she is a graduate with a Master’s in International Business Administration and a Doctorate in Economics from WU Vienna University of Business Administration & Economics. She began her career in 1993 at the Department of Transportation for the Canadian government in Ottawa. In 1997, she joined the Finance Department of the Walt Disney Europe Company in France. In 2000, she joined GE where she held various functions over 12 years: first in financial management for GE Healthcare Europe in France, then at GE Healthcare’s headquarters in the United States of America, before becoming in 2004, Chief Financial Officer of a subsidiary of GE Healthcare, then in 2007 of GE Water Europe, Middle East & Africa (GE Energy) in Belgium. Named in 2009 as Chief Financial Officer in Brazil, she then became Chief Executive Officer of GE Healthcare Latin America. Finally, in 2011, she became Chief Financial Officer of GE Germany. Since 2012, she has been Chief Financial Officer of the Management Committee for the German Group Bertelsmann and non-executive Director of the RTL Group, Member of the Board of Directors of Penguin Random House LLC and of Gruner & Jahr AG & Co KG until the end of 2014. In 2015, she joined ENGIE as Deputy CEO in charge of Finance. 


Andrew Jamieson has vast experience of the energy industry in general and LNG in particular. He held various positions with Shell Group in Europe, Australia and Africa before being appointed, in 2005, Executive Vice-President “Gas & Projects” and member of “Gaz & Power” Executive Committee of Shell, functions he retained until he retired in 2009. Andrew Jamieson serves as Director in different companies specialized in the energy sector. He is an Officer of the Order of the British Empire (OBE) and a Fellow of the Royal Academy of Engineering. He chaired the Royal Institute of Chemical Engineers between 2015 and 2016. Andrew Jamieson is a Chartered Engineer and holds a Ph.D. degree from Glasgow University.


Françoise Leroy holds a degree from the École Supérieure de Commerce et d’Administration des Entreprises de Reims. She began her career in 1975 as Secretary General of Union Industrielle d’Entreprise. She joined Elf Aquitaine Group in 1982 where she held various Financing and Capital Markets positions in the Financial Management Department. In 1998, she became Director of Financial Communications, then in 2001, Director of Chemical Subsidiaries Operations in Total’s Finance Department following its merger with Elf Aquitaine. She has been the Secretary General of Total’s Chemicals Division since 2004 and a member of Total’s Steering Committee since 2006. She was also Director of Mergers and Acquisitions-Disposals from January 2012 to July 2013.


Benoît Mignard, civil engineer graduate of the Ecole des Mines de Paris. After having held various positions at the Research Development division of EDF, Benoît Mignard joined Gaz de France in 1992 and took the head of the Trading Office and of the Budget. In 1999, he is in charge of the negotiation of gas supply contracts, and then of economic studies. In 2002, he undertakes the development of “structured transactions gas and LNG,” activities accompanying the opening of the energy markets in Europe. In 2006, he joined the Finance department as head of Investments Acquisitions, a position he held at GDF SUEZ after the merger of 2008. In 2012, he became deputy director GDF SUEZ E&P INTERNATIONAL and in October 2015 deputy director, in charge of Finance and Strategy for the Global Gas Branch and LNG of ENGIE. Benoît Mignard served as member of GTT’s board from 2012 to 2014, then from 2016 to 2017.


Cécile Prévieu was appointed Chief Executive Officer of Storengy in July 2015. She was previously responsible for Storengy Asset Management activities, comprising finance, legal affairs, strategy, business development and management/optimisation of underground storage asset management. She joined the Engie Group in 2010, first reporting to the Chief Operating Officer heading the Infrastructures Branch. She then moved to Storengy in 2011 as Chief Financial and Legal Officer. Cécile Prévieu began her career in 2002, within the French Public Administration. She held various positions at the Ministry of the Economy, Finance and Industry, then in the Prime Minister's Office, in the energy and transport sectors. She is a graduate of the École Polytechnique, the École Nationale des Ponts et Chaussées and the Institut d’Études Politiques in Paris.


Bruno Chabas joined SBM Offshore as Chief Operating Officer and Member of the Management Board in May 2011 and became CEO in January 2012. Prior to joining, Bruno Chabas worked for 18 years with Acergy S.A. (now Subsea 7 SA). From November 2002 until January 2011, he served as the Chief Operating Officer of Acergy S.A., responsible for all the day-to-day commercial and operational activity worldwide. From June 1999 through October 2002, he served as Chief Financial Officer. Between 1992 and 2002, Bruno Chabas held various management positions within preceding companies in the United Kingdom, France and the United States. He has been an Independent Non-Executive Director of FORACO International S.A. since August 2007. Bruno Chabas holds an MBA from Babson College, Massachusetts.


Specialized Committees

The specialized committees are tasked with preparing resolutions for the Board of Directors, making recommendations to the Board and providing advice and recommendations on issues within their specific scope of competence. 


This committee has three members, including its chairman, none of whom have management roles within the company, and all of whom have particular expertise in finance and accounting. 

Composition: Françoise Leroy, Christian Germa and Judith Hartmann.

Chairman of the committee: Christian Germa​


This committee has five members, including its chairman, and is tasked with assisting the Board of Directors in selecting its own members, the members of its committees, and the company's Chief Executive Officer. It also makes recommendations to the Board of Directors on issues of compensation.

Composition: Andrew Jamieson, Christian Germa, Bruno Chabas, Judith Hartmann and Françoise Leroy.

Chairman of the committeeBruno Chabas

Consult the GTT Executive committee section.