South Korean soldiers stand guard at the border village of Panmunjom between South and North Korea at the Demilitarized Zone (DMZ) on February 27, 2013 in South Korea. North Korea confirmed it had successfully carried out an underground nuclear test on February 12, as a shallow earthquake with a magnitude of 4.9 was detected by several international monitoring agencies. (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.