Steve Girsky (L), General Motors Vice Chairman and head of GM Europe, and Thomas Sedran, Deputy Chairman of Adam Opel AG, stand next to an Opel Adam car fresh from the assembly line as factory workers look on during a celebration to mark the launch of the new Opel compact car at the Opel factory on January 10, 2013 in Eisenach, Germany. Opel employees hope the car will help the company return to profits after years of sagging sales and the announcement of the Bochum factory closure in 2016. (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.