Aliko Dangote, $16.1 billion\r\n\r\nNigerian. Sugar, Cement, Flour\r\n\r\nThe fortune of Africa\u2019s richest man is up $4.9 billion this year, cementing his position as the world\u2019s richest black person. Last October, Dangote sold off his controlling stake in his flour milling company to Tiger Brands, one of South Africa\u2019s largest consumer goods companies. He pocketed $190 million from the sale. Dangote began building his fortune more than three decades ago when he started trading in commodities like cement, flour and sugar with a loan he received from his maternal uncle. He became a billionaire by venturing into the production of these items in the early 2000s. His eponymous Dangote Group owns sugar refineries, salt processing facilities and Dangote Cement, the continent\u2019s largest cement producer.