Firefighters try to put out a fire at a nightclub in Santa Maria, 550 Km from Porto Alegre, southern Brazil on January 27, 2012. The death toll climbed to 150 early Sunday as firefighters searched the charred remains of the establishment, television Globo reported. (AFP/Getty Images)
From underwater mining to luxury yachts, Mohammed Al Barwani has interests in a staggering range of industries. The chairman of MB Holding explains how he built the firm from scratch to become a billion-dollar player.