Independent Director per the definition of the New York Stock Exchange and Chilean Corporations law. Ms. Ocqueteau is a nurse from the University of Chile with an MBA from ESADE Business School and over 30 years of experience in various management roles at ACHS. She currently serves as director of the Asia-Pacific Chamber of Commerce and is a director at Fundación Imagen Chile and UDD Ventures. Advisor to Chile Mujeres, instructor at BOW Mujeres Empresarias, vice president of Unión Emprendedora, founding partner of Crosscheck, and general manager of Waygroup Chile. Throughout her professional career, she has accumulated extensive experience in risk management, security, and cybersecurity. Previously, she also served as director of ASECH and was a member of the Advisory Council of the Ministry of Women and Gender Equality in 2021. Corporate governance, sustainable development, and community relations are among her areas of expertise.

Mr. Guerrero Yamamoto holds a law degree from the University of Chile and an MBL from Adolfo Ibáñez University. In addition to his role at SQM, he currently serves as CEO of SONAMI, director of ICARE, an elected board member and member of the executive committee of SOFOFA, chairman of SOFOFA’s Chile/Australia Business Council, and director of the Mining Council. He has experience in community and trade association relations.

Independent Director per the definition of the New York Stock Exchange. Mr. Contesse is a lawyer with a degree from the Pontificia Universidad Católica de Chile and an Executive MBA from IMD in Switzerland. Previously, from 2013 to 2015, he also served as a member of the Board of Directors of SQM. Additionally, he is a member of the Board of Directors of Invercap S.A., and served as a director and vice president of Norte Grande S.A. and its subsidiaries from 2011 to April 2024. His areas of expertise include regulatory matters and corporate governance.

Independent Director per the definition of the New York Stock Exchange. Mr. Büchi is a Civil Engineer from the University of Chile. He served on the Board of Directors of SQM for several years until April 2016, prior to rejoining in 2017. Throughout his career, he has advised various governments in Latin America, Eastern Europe, and Asia on the design and implementation of economic policies. He served the Government of Chile in various capacities, including as Undersecretary of Economy (1979 1980) and Minister of Finance (1985–1989). He currently serves on the Board of Directors of Banco de Chile, among others. He is also Chairman of the Board of Trustees at the Universidad del Desarrollo. In addition to his knowledge of various industries, his areas of expertise include finance, corporate governance, regulations, and public policy.

Independent Director per the definition of the New York Stock Exchange. Mr. Ozols earned a Bachelor of Commerce degree from the University of New South Wales, Sydney and is also a CFA charterholder. He has extensive experience in international business, specializing in providing strategic and financial advisory services to clients in the United States, Australia, and Asia. Between 2003 and 2017, he worked at numerous investment banks, including Macquarie Group, Grant Samuel, and CLSA. Between 2017 and the start of his role as a member of the Board of Directors at SQM, he served at Tianqi Lithium as an executive focused on corporate development. He also has expertise in regulatory and corporate governance matters.

Independent Director per the definition of the New York Stock Exchange and Chilean Corporations law. Mr. Gil is an industrial Engineer from ICAI (Pontifical University of Comillas, Spain), MBA from Harvard University, and has completed the Stanford Executive Program. He has over 30 years of experience in strategic leadership, risk management, and financial and investment management at the global, European, and Latin American levels. He currently serves as a director of Latam Airlines Group. Previously, he was CEO of Moneda Asset Management, Vice President of ACAFI, Managing Director, Global CFO, and a member of the global executive committees of various global businesses at JPMorgan, and served as a strategic consultant for BCG in Spain. Additionally, he possesses expertise in finance, regulatory matters, and corporate governance.

Independent Director per the definition of the New York Stock Exchange. Mr. de Bourguignon is an economist from the Pontifical Catholic University of Chile with an MBA from Harvard University. In the academic sphere, he has served as a professor of economics at the Pontifical Catholic University of Chile, while in the business world, he is co-founder and currently Chairman of Asset Chile S.A., a corporate finance advisory firm, and of Asset AGF, an investment fund management company. He also serves as a director on the boards of various companies, including Vivo S.A., where he has been Chairman since August 2022; Tánica S.A., since May 2017; and Embotelladora Andina, since 2016. He served as a director of Soquimich S.A. (2019–April 2022), Empresas La Polar S.A. (2011–2015), and Sal Lobos S.A. (2006–2018), and as Chairman of the Board of Directors of Latam Airlines Group (2012–2019). He has expertise in economics and finance, regulatory matters, and corporate governance.

Independent Director per the definition of the New York Stock Exchange. Mr. Xu earned a Doctor of Law degree from the Università degli studi di Roma Tor Vergata, Italy. He studied at the Centro di Studi Giuridici Latinoamericani at the same university. He also holds a Certificate of Legal Professional Qualifications from the People’s Republic of China. He is currently an Associate Professor at Sichuan University, China, specializing in Civil and Commercial Law. He has also edited several publications and books on Civil and Commercial Law. Mr. Xu has expertise in corporate governance and regulatory matters.