British Prime Minister David Cameron (R) shakes hands with Palestinian President Mahmoud Abbas as he welcomes him at 10 Downing Street on September 11, 2013 in London, England. Mr Abbas is on an official state visit to the UK, and is likely to discuss the need for progress with regards to the Middle East peace process. (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.