Chairperson

Date of last re-election as director: May 13, 2026

Member of the appointments and remuneration committee

Shareholding in the share capital:  62.63%

Industrial engineer, University of Oviedo.

Mr. Sabino García Vallina has extensive experience in the construction and electric power sector, where he has held management positions in several companies (Goyarrola Díaz Gálvez, ERPO) and served as board member of Duro Felguera. He became chairman and majority shareholder of TSK in 1990. In his more than 35 years at TSK, he has led teams on numerous projects and managed some of the Group’s international companies, holding positions of high responsibility.

Chief Executive Officer

Date of last re-election as director: May 13, 2026

Business Administration, Oviedo University. Executive MBA (IE Business School), Management Development Program (ESADE), Master’s in Management (ESCP Business School).

Mr. Joaquín García Rico started his professional career in the financial and investment sector by joining British Telecom as financial analyst. He joined TSK in 1999, where he has occupied positions of responsibility such as director of quality management, director of corporate development or corporate general manager, and since 2013 he has served as TSK’s Chief Executive Officer, position in which he has played an important role in the growth and international expansion of the Company. His more than 25 years of experience in the Company have been instrumental in transforming TSK into a global player with a strong and sustainable future.

Executive Vice-President

Date of last re-election as director: May 13, 2026

Member of the sustainability and compliance committee

Business Administration, Oviedo University. MBA (IE Business School), a Master in Tax Advisory (Asturias Association of Economists).

Ms. Beatriz García Rico started her professional career in the audit area at Crowe Howarth and subsequently occupied senior positions at Duro Felguera in the financial control department. She joined the Company in 2008, since when she has held various management positions, including director of audit and consolidation and she has served as TSK’s Chief Financial Officer since 2012.

 Independent director

Date of appointment: May 13, 2026

Member of the audit and risk committee

Lawyer, Universidad Pontificia Comillas (ICADE E-1, Madrid). Diploma in Business Administration. MBA and Master’s in Foreign Trade from the Spanish State Secretary of Commerce (Secretaría de Estado de Comercio).

Mr. Fernando Maudo Arranz began his professional career at the Madrid Chamber of Commerce (Cámara de Comercio de Madrid) as Head of International Relations. Subsequently, he has held several management positions at companies in the textile sector (Industrias y Confecciones, Industria de Diseño Textil, Caramelo, Coronel Tapiocca), as well as at e-commerce companies (Showroomprivee, Vente privee). He has held management positions and served as member of the board of directors of companies in the retail and fashion sectors (Rolser, Ars Rei, Alma en Pena, Gioseppo). He serves currently as Chairperson of the Board of Directors of Kiabi España KSCE.

Independent director

Date of appointment: May 13, 2026

Chairperson of the sustainability and compliance committee

Member of the audit and risk committee

Industrial Engineer, University of Bilbao. Negotiation and Strategy Program (Standford University), New Venture Launch Program (Harvard Business School), Advanced Management Program (IESE Business School), Senior Management Program (INSEAD Business School), Program of the Trends of the European Gas Market (University of Cambridge), Program in Negotiation (Harvard University).

Mr. Enrique Palomino Bilbao began his professional career in the energy and infrastructure sector at Babcock Wilcox Española, where he held various management positions and served as Chief Executive Officer of Babcock Borsig España. He occupied several management positions at several companies belonging to EDP Group (Naturgas, Septentrional de Gas, NaturCorp Transportes, Bilbogas, Gasnalsa), as well as at companies belonging to the Aernnova Aerospace Group, where he was Executive Vicepresident. He is currently a member of the executive committee of several companies (GPF Environment, Lezama Demoliciones) and serves as chairman of the board of directors of Inversiones ForoPADE.

Independent director

Date of appointment: May 13, 2026

Chairperson of the appointments and remuneration committee

Industrial Engineer, Universidad Pontificia Comillas (ICAI, Madrid). Master’s in Science (EOI, España).

Mr. Rafael Miranda Robredo has spent most of his professional career in the energy and infrastructure sectors. He started his career holding management positions at various companies (Tudor, Campofrio) and has served on the boards of directors of several companies (Endesa, Acerinox, Red Electrica, FECSA, Compañía Sevillana de Electricidad, Hispania Activos Inmobiliarios, Enersis, Parkia Iniciativas, Industrias Celulosas Aragonesas). He currently serves as Honorary President of the Association for the Progress of Management (APD), as Honorary President of the Association of European Electric Companies, and serves on the board of directors of various companies (ISAGEN, Brookfield Corporation, Nicolás Correa) and as member of the advisory board of A.T. Kearney.

Independent director

Date of appointment: May 13, 2026

Member of the appointments and remuneration committee

Member of the sustainability and compliance committee

Lawyer, University of Navarra. Master’s in Digital Transformation (EOI, España).

Ms. Gema Díaz Real has completed executive programs such as the International Visitor Leadership Program (IVLP) of the U.S. Department of State (2015), the “Women to Watch” program by PwC (2020), and the Women Corporate Directors (WCD) initiative (KPMG).

Ms. Gema Díaz Real has developed her professional career in the fields of corporate advisory, consulting, and executive leadership. She has served on the management teams of several companies (Díaz Real Asesores Consultores Osman Asesores Consultores, Mnemo Cybersecurity, Binnacle Group Consulting, EIG Westfield Business School), and on the board of directors of various companies (Sniace, Santander Port Authority, Sodercan, Mutua Montañesa, Lignotech Ibérica, Helican Desarrollo Eólico, Ecobarcial, Green Source). She has served as President of CEOE-CEPYME Cantabria and as a member of the Executive Committees of CEOE – CEPYME Spain. She currently serves as an advisor to various companies (Lid Business Media Global, Beka Finance).

Independent director

Date of appointment: May 13, 2026

Chairperson of the audit and risk committee

Economics and Business Administration, University of Valladolid. Master’s in Financial Operations and Services (INESE-INESFI), Advanced Management Program (IESE), Executive Development Program (IESE).

Ms. Rosario Casero Echeverri developed most of her professional career at Instituto de Crédito Oficial (ICO), where she held senior executive positions. She also served as on the executive committees of several funds (Fond-ICO Sostenibilidad e Infraestructuras, Fond-ICO Pyme, FIEM, FONPRODE, FCAS, FIEX, FONPYME). She has served on the Board of Directors of several companies (Banco de Negocios Argentaria, AXIS, Participaciones Empresariales, COFIDES). She currently serves on the board of directors of Amper and EBN Banco de Negocios.

Secretary non-director

Date of appointment: May 13, 2026

Lawyer, University of Alcalá de Henares. Master’s Degree in Business Consultancy (CEF), Master’s in Environmental Law (Eusko Ikaskuntza- Basque Studies Society, the Department of Constitutional and Administrative Law of the University of the Basque Country E.H.U. and the International Court of Arbitration and Environmental Conciliation).

Mr. Raúl Nodal Monar began his professional career at INGEMAS as head of the legal department. He joined TSK in 2007 as Managing Director of Legal Services and has served as Secretary of different boards of directors in the Group’s companies.