Santiago Zaldumbide, 1942, is an executive director of Xstrata, Chief Executive of Xstrata Zinc and Executive Chairman of Asturiana de Zinc. Mr Zaldumbide was appointed to the Board of Xstrata in February 2002. He is a previous Chief Executive Officer and director of Union Explosivos Rio Tinto and of Petroleos del Norte. In 1990, Petroleos del Norte became part of the Repsol Oil Group where Mr Zaldumbide was responsible for establishing the international structure of the enlarged Repsol Oil Group. In 1994 he was appointed Chief Executive Officer of the Corporación Industrial de Banesto and, in December 1997, Chairman and Chief Executive Officer of Asturiana de Zinc. Mr Zaldumbide is also a member of the European Advisory Council of Air Products and Chemicals, Inc. and a director of ThyssenKrupp SA. He sits in the Board of Directors and the Executive Committee of the International Zinc Association and is a member of the Executive Committee of the Confederation of Industries of Spain (CEOE).