People queue to board the HMAS Darwin at Royal Australian Navy's Sydney base of Garden Island during an open day after the Navy celebrated 100 years since their first ships entered Sydney Harbour, on October 7, 2013. The open day followed the Royal Australian Navy International Fleet Review which also included visiting warships from Britain, Singapore, Japan, India, Thailand and the United States. (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.