1. Carlos Slim Helu
Carlos Slim Helu (born January 28, 1940) is a Mexican business magnate and philanthropist who as of 2011 is the richest man in the world, for the second year in a row. He is the chairman and chief executive of telecommunications companies Telmex and America Movil and has extensive holdings in other Mexican companies through his conglomerate, Grupo Carso SAB, as well as business interests elsewhere in the world.America Movil, which in 2010 was Latin America's largest mobile-phone carrier, accounted for around US$49 billion of Slim's wealth by the end of 2010. His corporate holdings as of March 2011 have been estimated at US$74 billion
