Mr. Carballo serves as Vice President and Honorary Treasurer of Iberoamerican Benevolent Society (U.K). Mr. Carballo served as an Executive Vice President of Banco Santander Central Hispano S.A. from 1989 to 2001. He served as Chief Executive Officer of Banco Santander de Negocios from 1989 to 1993. He served as an Executive Vice President responsible for Europe at Banco Bilbao Vizcaya Until 1989. He served as an Executive Vice President of Banco de Bilbao in New York until 1983. Mr. Carballo serves as the Chairman of La Unión Resinera Española, Vista Desarrollo. He serves as a Director of Vista Capital Expansion S.A. S.G.E.C.R., Star Capital Partners Ltd. (U.K.), SCH Activos Inmobiliarios and Teleférico del Pico de Teide. Mr. Carballo has been Non-Executive Director of Alliance & Leicester Plc since October 12, 2008. Mr. Carballo served as Non-Executive Director of Santander UK Group Holdings plc ( Santander UK plc, Abbey National PLC (ENG)) since December 1, 2004 until March 30, 2015.