Tourists wear masks in Tiananmen Square on March 9, 2013 in Beijing, China. Strong winds dispersed Beijing's lingering haze, but ushered in a sandstorm with a sharp temperature drop today. Clearing urban air pollution is a focus in discussions during the National People's Congress. (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.