A visitor takes picture of Boeing 747-B at the Singapore Airshow in Singapore on February 14, 2012. Boeing and Indonesian carrier Lion Air formally signed a 22.4 billion USD deal for 230 aircraft, the single largest contract in commercial aviation history. (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.