南方天然气运输公司 TGS

Carlos Hector Sidero graduated from Universidad de Buenos Aires as a Certified Public Accountant in Argentina. He worked with Isaura S.A. from 1981 through 1994. From 1994, he managed different areas within the Human Resources department at Eg3 SA and Petrobras Argentina. He joined us in March 2013 as Vice President of Human Resources. He was born on February 16, 1956.

Oscar Jose Sardi received a Mechanical Engineering degree from the Universidad Nacional de Rosario and holds a major in Natural Gas from the Universidad de Buenos Aires. He also participated in a General Administration Program at the Universidad Austral. He worked for GdE between 1983 and 1992 and since then, he has held different positions in our operations area. In April 2005, he was designated as our Service Vice President, and subsequently appointed as our Operations Director from October 2016 until April 2019, when he was appointed as our CEO. He also acts as President of Telcosur. He was born on September 1, 1955.

Claudia Beatriz Trichilo received a Chemistry degree and a post-graduate degree in Engineering from the Universidad de Buenos Aires. From June 1988 to December 1992, she worked at the Industrial Engineering Department of Gas del Estado. In 1992, Ms. Trichilo joined tgs as Chief of Technical Planning and held such position until December 2002, when she was appointed Technical Developments Manager. From 2007 to 2010, Ms. Trichilo acted as Coordinator of Operations until August 2019, when she was appointed as our Operations Vice President. She was born on March 21, 1963.

Gabriel Wasserman holds a degree in Business Administration from the Universidad de Belgrano and a Master's degree in Operations Management from Universidad Austral. He also completed a postgraduate diploma in Regulation of Hydrocarbons and the Energy Industry at the Pontificia Universidad Catolica Argentina. Throughout his career, he has held senior executive and board positions in Argentina, Brazil and Israel, including roles as Director of BICE Fideicomisos S.A., Chief Operating Officer of Callzone Communications Ltd., and General Manager of Gramm Agropecuaria S.A., where he led the production, processing and international export of premium agricultural products. His professional background combines corporate governance, operations management, international trade and market development across multiple sectors.

Luis Alberto Fallo holds a degree in Accounting from the Universidad de La Plata and a Master's degree in Business Administration from the Universidad del CEMA (Center of Macroeconomic Studies). He currently serves as Director of Simali S.A., Executive Director of Sagua Argentina S.A., President of Beau Lieu S.A., President of Finca de Los Andes S.A., Vice President of Vice President of Aguas de Santiago S.A., President of PEPCA S.A. and Vice President of CIESA, President of First Class Flights S.A., and Vice President of Hosteria Las Balsas S.A. Since 1992 he has worked with Grupo Sielecki, the main and controlling shareholder of several companies to which he serves as Director. He was born on January 29, 1960.

Luis Rodolfo Secco holds a Bachelor's degree in Economics and a Master's degree in Banking Disciplines from the Universidad Nacional de La Plata. In 1990 he obtained a scholarship as a full time researcher at the Universita degli Studi di Siena. Between 1992 and 1994, he was a researcher and director of the School of Banking Disciplines of the Universidad Nacional de La Plata. Between 1994 and 1999, he worked as Chief Economist of M.A.M. Broda and Associates. At the beginning of 2000 he was summoned to work in the government of the then president Fernando De la Rua as economic adviser to the Presidency and General Director of Strategic Analysis of the Secretary of State Intelligence, a position he held until January 2002. In 2002, Mr. Secco founded his economic consulting firm, Economic Perspectives, and is currently director and editor of the Economic Perspectives newsletter. Between 2004 and 2012 he was external director of the Department of Economics of Deloitte Argentina. Since 1988 he has served as a professor at the Faculty of Economic Sciences of the Universidad Nacional de La Plata. He is also a guest columnist for the newspapers La Nacion, Perfil and El Economista. He was born on December 14, 1963.

Maximiliano Zuddio holds a degree in International Relations and Political Science from the Pontificia Universidad Catolica Argentina. He currently serves as a Director of Empresa Distribuidora y Comercializadora Norte S.A. (Edenor S.A.). Mr. Zuddio has professional experience in public administration, corporate governance and institutional advisory roles. In the public sector, he has held advisory and management positions, including Director of Natural Resources at the Provincial Agency for Sustainable Development (OPDS) and Chief of Staff to several Undersecretariats within the Ministry of Social Development of the Nation. In the private sector, he has held management positions related to strategic communication and advisory services.

Alejandro Mario Basso received a Public Accounting degree from the Universidad de Buenos Aires. He worked for Compania Naviera Perez Companc from 1987 to 1992, and for Quitral-Co S.A. from 1992 to 1994. From 1994 to 1998, he acted as our Planning and Corporate Control Manager, and between September 1998 and March 2008, he was our Planning and Control Vice President. Between March 2008 and October 2016, he acted as our Management Control and Corporate Governance Vice President. In October 2016, he was designated as our CFO and Services Vice President. He also acts as Vice president of Telcosur S.A. and Gas Link S.A. He was born on October 13, 1961.

Jorge Pablo Vugdelija is an Electronic Engineer graduated from the National Technological University (Universidad Tecnologica Nacional) and completed postgraduate studies in Gas and Electricity Market Regulation at ITBA, an Executive MBA at IAE Business School, and executive programs in strategy and leadership at Penn State University. Throughout his career, he has held senior management positions at Pecom Energia S.A., Petrobras Argentina and Refineria del Norte S.A. (Refinor), and served as Chief Executive Officer of Oleoductos del Valle S.A. (Oldelval) and as Executive President of Oleoductos de Crudos Pesados (OCP) in Ecuador. In January 2026, he joined the Company as Strategic Projects Vice President, where he is responsible for the execution and development of major strategic infrastructure initiatives.

Juan Ignacio de Urraza holds a degree in Chemical Engineering from the Universidad Nacional de La Plata. He completed several postgraduate courses in Strategic Management, Business Management, Management Development, Management Development and Advanced Leadership. Between March 1991 and July 1992, he worked at the Instituto de Investigaciones Fisicoquimicas, Teoricas y Aplicadas as a researcher in the Corrosion Department. From September 1992 to January 1993, he worked as a fellow at Petroken Petroquimica Ensenada. From July 1993 to September 1994, he worked first as a Process Engineer and then as a Consultant at A&C Analistas Economicos y Consultores de Empresas. Between November 1994 and February 2005 he held different positions in Metrogas. In March 2005 he joined us as Liquids Commercial Head, until September 2007, when he took over as Natural Gas Liquids Commercial Manager. In November 2020 he was appointed Business Director. He was born on September 27, 1969.

Maria Carolina Sigwald has been a member of the Board of Directors of Pampa Energia since 2017 and serves as Executive Director of Legal Affairs of Pampa Energia. Ms. Sigwald worked at the legal department of Central Puerto S.A., and then served as an associate at the New York office at Chadbourne & Parke and then worked at the Corporation Interamericana de Inversiones (IIC) based in Washington. In 1998, Ms. Sigwald returned to Argentina and founded the firm Diaz Bobillo, Sigwald & Vittone, in which she served as an external consultant for energy companies. Before joining as a director at Pampa Energia, between 2015 and 2017, Ms. Sigwald was the director of regulatory and legal affairs at Edenor. Ms. Sigwald is also a member of the boards of CITELEC, CT Barragan, Transba, CIESA., Comercializadora e Inversora S.A., Pampa Energia Bolivia S.A., Fundacion Pampa Energia and Vientos de Arauco Renovables S.A.U., among others. Ms. Sigwald holds a law degree with honors from University of Buenos Aires. She was born on November 15, 1967.

Hernan Diego Flores Gomez received a Law degree from the Universidad de Buenos Aires. He is a co-founder and professor of the Hydrocarbons and Energy Industry Law post-graduate course at Universidad Catolica Argentina, and he is also a co-founder and professor of the Petroleum and Natural Gas Law post-graduate course at Universidad de Buenos Aires, and professor of the Energy Master's degree at the Energy Regulatory Activity Studies Center (CEARE). Additionally, Dr. Flores Gomez has a Master's degree in Business Law from the Escuela Superior de Economia y Administracion de Empresas (ESEADE), a Master's degree in Finance from the Universidad del CEMA and a Postgraduate degree in Damage Law from Universidad Catolica Argentina. He began his career in the National Judicial Branch. Throughout his career, he held various relevant positions on legal matters, institutional and management relationship at companies such as Capsa / Capex S.A., Pluspetrol S.A. and ENAP Sipetrol Argentina S.A. He was born on June 10, 1966.

Horacio Jorge Tomas Turri is currently Executive Director of Exploration and Production at Pampa Energia. From August 1997 to March 2000, Mr. Turri was Chief Executive Officer of Hidroelectrica Piedra del Aguila. From 1994 to 1997, he was Chief Executive Officer of Gener Argentina S.A. Prior to 1994, he was Development Assistant Manager at Central Puerto S.A. From 1990 to 1992, Mr. Turri worked as investment project's analyst for the oil, gas, and electricity sectors at SACEIF Luis Dreyfus. He also worked at Arthur Andersen & Co. and Schlumberger Wireline in 1987-1990 and 1985-1987, respectively. He is CIESA's Chairman, as well. Mr. Turri is an Industrial Engineer and received his degree at Instituto Tecnologico Buenos Aires. He was born on March 19, 1961.

Pablo Daniel Vinals Blake holds a law degree from the Universidad Catolica Argentina and a master law degree from Harvard Law School. Mr. Vinals Blake has been a foreign associate in the New York office of Milbank Tweed Hadley & McCloy LLP and since 1997 is a partner in the Buenos Aires office of Marval, O'Farrell & Mairal. Mr. Vinals Blake is currently the co-head of Marval's Mergers & Acquisitions team and head of the Private Equity and Venture Capital and the Agribusiness groups. He has represented domestic and multinational companies, private equity, hedge funds and financial institutions in most of the largest M&A, Agribusiness and project financing transactions in Argentina in the last two decades and advised multilateral financial institutions such as the IFC, IDB and the United States Eximbank on their Argentine operations. He currently serves as a board member of BlackRock Argentina Asesorias S.A., PEPCA S.A. and CIESA. He was born on October 3, 1962.