A visitor walks by a European UAS EADS Cassidian drone on September 11, 2012 in Berlin, Germany. The 2012 Internationale Luftausstellung (ILA) Air Show is supplying the first use of the runway at the new Willy Brandt Berlin Brandenburg International Airport (BER), still under construction, and runs from September 11-16. (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.