[PAR] [TLE] Grupo Carso [SEP] Grupo Carso or Grupo Sanborns SAB is a Mexican global conglomerate company owned by Carlos Slim.  It was formed in 1990 after the merger of Corporación Industrial Carso and Grupo Inbursa.  The name Carso stands for Carlos Slim and Soumaya Domit de Slim, his late wife. [PAR] [TLE] Carlos Slim [SEP] Carlos Slim Helú (] ; born January 28, 1940) is a Mexican business magnate, investor, and philanthropist.  From 2010 to 2013, Slim was ranked as the richest person in the world.  He derived his fortune from his extensive holdings in a considerable number of Mexican companies through his conglomerate, Grupo Carso.
[PAR] [TLE] Grupo Carso [ SEP ] Grupo Carso or Grupo Sanborns SAB is a Mexican global conglomerate company owned by Carlos Slim . It was formed in 1990 after the merger of Corporación Industrial Carso and Grupo Inbursa . The name Carso stands for Carlos Slim and Soumaya Domit de Slim , his late wife . [PAR] [TLE] Carlos Slim [ SEP ] Carlos Slim Helú ( ] ; born January 28 , 1940 ) is a Mexican business magnate , investor , and philanthropist . From 2010 to 2013 , Slim was ranked as the richest person in the world . He derived his fortune from his extensive holdings in a considerable number of Mexican companies through his conglomerate , Grupo Carso .
Ranked as the richest person in the world, this business magnate derived his fortune from extensive holdings through his conglomerate that was formed in what year?
Ranked as the richest person in the world , this business magnate derived his fortune from extensive holdings through his conglomerate that was formed in what year ?
1990
1990