The Canary Wharf headquarters of Barclays Bank, who have been fined 290 million GBP for manipulating the Libor inter-bank lending rate, on June 28, 2012 in London, England. British Prime Minister David Cameron has said the bank's management has 'serious questions' to answer regarding their practices. Shares in Barclays have fallen 15% this morning. (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.