特纳里斯 TS

Simon Ayat. Mr. Ayat is an independent member of the Company's board of directors and of its audit committee. He served as Schlumberger's executive vice president and chief financial officer from 2007 until early 2020 and as senior strategic advisor to the chief executive officer of Schlumberger until January 2022. Mr. Ayat has held several financial and operational positions in Schlumberger, where he commenced his career in 1982. He was based in Paris, Houston and Dallas, as well as in the Middle East and Far East regions, serving as group treasurer, controller, geomarket manager for Indonesia and drilling regional vice president for Asia Pacific. Mr. Ayat is also a member of the board of directors and audit committee of Liberty Energy, a leading provider of hydraulic fracturing and wireline services to E&P companies in North America. He is a French and Lebanese citizen.

Mr. German Cura. Mr. Cura is a member of the Company's board of directors and also holds the position of vice chairman of the Company's board of directors. He served as president of our operations in North America until May 2, 2018, a position held since 2006. He was first employed by Siderca in 1988. Previously, he served as Siderca's exports director, Tamsa's exports director and commercial director, sales and marketing manager of our Middle East subsidiary, president of Algoma Tubes, president and chief executive officer of Maverick Tubulars and president and chief executive officer of Hydril Company, director of our Oilfield Services global business unit and Tenaris commercial director. He was also a member of the board of directors of the American Petroleum Institute (API) and of the American Iron and Steel Institute (AISI). He is a marine engineer from the Instituto Tecnologico de Buenos Aires and holds an MBA from the Massachusetts Institute of Technology. Mr. Cura is an U.S. citizen.

Paolo Rocca. Mr. Rocca is the chairman of the Company's board of directors and has been our chief executive officer since 2002. He is a grandson of Agostino Rocca. He is also the chairman of the board of directors of Ternium and a director and president of San Faustin. He is a member of the executive committee of the World Steel Association. Mr. Rocca is an Italian citizen.

Monica Tiuba. Ms. Tiuba is an independent member of the Company's board of directors and chairperson of its audit committee. She is a Brazilian qualified lawyer and accountant with more than 20 years of professional experience in Brazil and Luxembourg. She started her career at Barbosa, Mussnich & Aragao law firm in Rio de Janeiro, Brazil, where she practiced corporate law, M&A and tax litigation. She worked in EY and PwC, in the Brazil and Luxembourg offices, advising multinational clients, private equity houses and family offices. She gained banking experience working as international senior wealth planner at Banque Edmond de Rothschild, in Luxembourg. She currently serves as member of the board of directors of Investing for Development SICAV, a Luxembourg social impact fund and of its Forest and Climate Change Fund. She holds a Master of Laws in International and Comparative Law at the Vrije Universiteit Brussel, a specialization in EU tax law from Leiden University and a Master of Laws in international taxation from Vienna University of Economics. Ms. Tiuba is a Brazilian and Luxembourgish citizen.

Antonio Caprera. Mr. Caprera currently serves as our Chief Industrial Officer, position he assumed in April 2017, and since July 2023, he also assumed responsibility over the quality department. He joined the company in 1990. From 2000 to 2006 he served as quality director at Dalmine in Italy, where he later assumed responsibilities as production director until 2012. From that year and until 2015 he served as production director at Siderca in Argentina, after which he assumed responsibilities as global industrial coordinator based in Mexico until March 2017. Mr. Caprera is an Italian citizen.

Roberto Bonatti. Mr. Bonatti is a member of the Company's board of directors. He is a grandson of Agostino Rocca, founder of the Techint Group, a group of companies controlled by San Faustin. Throughout his career in the Techint Group he has been involved specifically in the engineering and construction and corporate sectors. He was first employed by the Techint Group in 1976, as deputy resident engineer in Venezuela. In 1984, he became a director of San Faustin, and from 2001 until 2020 he has served as its president. He is also a member of the board of directors of Ternium. Mr. Bonatti is an Italian citizen.

Andrea Previtali. Mr. Andrea Previtali currently serves as president of our operations in the Southern Cone, a position he assumed in April 2025. Previously, he was Vice President of our global Pipelines and Services business unit. He began his career at Tenaris in 1999, gaining experience in various areas, including strategic planning, operations, product development, and commercial. Over the years, he has worked in Italy, Romania, Mexico, Indonesia, Switzerland, and now Argentina. Mr. Previtali is an Italian citizen.

Gabriel Casanova. Mr. Casanova currently serves as our Chief Supply Chain Officer, with responsibility for the execution of all contractual deliveries to customers. After graduating as a marine and mechanical engineer, he joined Siderca's export department in 1987. In 1995 he became Siderca's Chief Representative in China and from 1997 to 2009 he held several positions in the commercial area in Dalmine. In 2009 he became the head of our supply chain network and in October 2012 he assumed his current position. Mr. Casanova is an Argentine citizen.

Guillermo Moreno. Mr. Guillermo Moreno currently serves as president of our operations in the United States, a position he assumed in April 2025. Prior to this role, Mr. Moreno was the Chief Commercial Officer for the U.S., where he oversaw the company's commercial strategy, including the execution of its service-oriented business strategy, Rig Direct. Before joining the Tenaris U.S. executive team in late 2019, Mr. Moreno served as President of Tenaris in Canada, overseeing regional operations since 2012. In 2010 he held the position of Chief Planning Officer in Argentina. In 1999, Mr. Moreno was named Vice President of the Pipeline Services global business unit based in Mexico, and in 2004, he took over the Oilfield Services global business unit, based in Houston, Texas. Mr. Moreno is an Argentine citizen.

Luis Scartascini. Mr. Scartascini currently serves as our Chief Human Resources Officer, a position he assumed in January 2022. After receiving a degree in industrial engineering, he started his career in Siderca in 1997 and then moved to Houston in 2003 to be part of the company's commercial office in the United States. In 2005 he moved back to Argentina to serve as the director of the Global Trainee program before heading to Dubai in 2010 to lead the Middle Eastern Business Unit and later support the acquisition of Saudi Steel Pipes. He returned to the United States in 2018 as commercial vice president and played a leading role in the commercial integration of IPSCO. Mr. Scartascini is an Argentine and Italian citizen.

Molly Montgomery. Ms. Montgomery is an independent member of the Company's board of directors. She has 20 years of experience advising senior executives and government officials on geopolitical and policy issues. She currently serves as a Public Policy Director at Meta Platforms, Inc. In her 15-year career in the U.S. government, her roles included serving in the White House as Special Advisor to the Vice President for Europe and Eurasia and as the Deputy Assistant Secretary of State for the EU and Western Europe. Ms. Montgomery was previously a senior vice president at Albright Stonebridge Group, where she advised Fortune 500 clients on geopolitical risk, regulatory issues, and market entry and exit. She currently serves as a member of the board of directors of the Center for European Policy Analysis and the Leadership Council for Women in National Security. She holds a BA in History and Political Science from Stanford University, an MPA in International Relations from Princeton University, and a life membership in the Council on Foreign Relations. Ms. Montgomery is an U.S. citizen.

Gabriel Podskubka. Mr. Podskubka currently serves as our Chief Operating Officer, with responsibility for coordinating the company's sales and marketing, supply chain and production operations and product and service development, a position he assumed in April 2023. After graduating as an industrial engineer in Argentina, Mr. Podskubka joined Siderca in 1995 in the marketing department. He held various positions in the marketing, commercial, and industrial areas of Tenaris until he was appointed as the head of our Eastern European operations in 2009 and, in 2013, the president of our Eastern Hemisphere operations. Mr. Podskubka is an Argentine citizen.

Jaime Jose Serra Puche. Mr. Serra Puche is an independent member of the Company's board of directors and of its audit committee. He is the chairman of SAI Derecho & Economia, a Mexican consulting firm, and a member of the board of directors of Grupo Vitro, and chairman of the board of BBVA. Mr. Serra Puche served as Mexico's Undersecretary of Revenue, Secretary of Trade and Industry, and Secretary of Finance. He led the negotiation and implementation of the North America Free Trade Agreement (NAFTA), now replaced by the USMCA. Mr. Serra Puche is a Mexican citizen.

Lucas Pigliacampo. Mr. Lucas Pigliacampo currently serves as our Chief Technology Officer, a position he assumed in April 2025. He joined Tenaris in 1997 and has held predominantly technical roles within the company, gaining experience in processes, product engineering, oilfield services, and product marketing. His previous roles include Vice President of Oil and Gas Technologies, Global Technical Sales Director, and Product Marketing and Applications Director, among other positions across Argentina, Canada, Italy, and the United States. Mr. Pigliacampo is an Argentine and Italian citizen.

Sergio de la Maza. Mr. de la Maza currently serves as president of our operations in Mexico and also serves as managing director and executive vice president of Tamsa. He first joined Tamsa in 1980. From 1983 to 1988, Mr. de la Maza worked in several positions in Tamsa. He then became manager of Tamsa's new pipe factory and later served as manufacturing manager and quality director of Tamsa. Subsequently, he was named manufacturing director of Siderca. He assumed his current position in 2003. Mr. de la Maza is a Mexican citizen.

Carlos Gomez Alzaga. Mr. Carlos Gomez Alzaga currently serves as our Chief Financial Officer, a position he assumed in May 2025. He joined Tenaris in 2003 and has over 20 years of experience, serving in various roles including CFO for the Southern Cone, where he supervised financial operations in Argentina, Brazil, Bolivia, and Chile; Economic and Financial Planning Director; CFO for Central America, overseeing financial operations in Mexico, Colombia, Ecuador, Venezuela, and Peru; and Compliance Director, establishing the Compliance department and implementing SOX certification. Prior to joining Tenaris, he worked as a consultant for McKinsey & Company and as an Economic and Financial Planning Analyst for Ternium in Argentina. Mr. Gomez Alzaga is an Argentine citizen.

Michele Della Briotta. Mr. Della Briotta currently serves as president of our operations in Europe, a position he assumed in July 2016. He first joined Tenaris in 1997 and has worked in areas such as industrial planning, operations, supply chain and commercial in Italy, Mexico, Argentina and the United States. Most recently he served as Tenaris's area manager for Romania. Mr. Della Briotta is an Italian citizen.

Gianfelice Mario Rocca. Mr. Rocca is a member of the Company's board of directors. He is a grandson of Agostino Rocca. He is chairman of the board of directors of San Faustin, member of the board of directors of Ternium and president of the board of directors of Humanitas S.p.A. and Tenova S.p.A. (Tenova). Furthermore, in Italy he is president of the Giorgio Cini Foundation and member of the board of Bocconi University. At international level, he is member of the European and Global Advisory Board of Harvard Business School, member of the European Round Table of Industrialists, vice president of Aspen Institute and member of the board of Brembo N.V. Mr. Rocca is an Italian citizen.

Maria Novales-Flamarique. Ms. Novales-Flamarique is an independent member of the Company's board of directors. She advises multinational institutions on a variety of strategic and transformational issues. Previously, she was country head for Generation Mexico, an NGO founded by McKinsey & Company that transforms education-to-employment systems to prepare, place, and support people into life-changing careers that would otherwise be inaccessible. She was also a partner at McKinsey & Company, leading more than 50 teams advising companies in Mexico, other Latin American countries, the United States and Europe. She began her career in asset management at Letko, Brosseau & Associates in Montreal, Canada, and worked as an investment banker at Citigroup Global Markets in New York City. She currently serves as an independent director at Scotiabank Mexico, where she is a member of the Audit and Talent committees. She also sits on advisory boards at several fintech, HRtech, insurtech start-ups and venture capital funds and is an independent senior advisor. She holds an MBA from London Business School, a BA from HEC Montreal and is a CFA Charterholder. Ms. Novales-Flamarique is a Canadian, Spanish, and U.S. citizen.