Cavalry escort the convoy of the Bahrain's King Hamad bin Issa al-Khalifa during a National Day Ceremony at the University of Bahrain in Zallaq, South of Manama, on December 16, 2012. King Hamad said in a speech to mark the occasion that 'Bahrain will remain a nation of law, institutions, liberties and tolerance between different religions and cultures'. (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.