32) Rostam Azizi – Net Worth: $1 Billion (Tanzanian)

Rostam Azizi is the first billionaire from Tanzania. In May 2014, he sold a 17.2 percent stake in Vodacom Tanzania, the largest mobile phone operator in the nation.

31) Abdulsamad Rabiu – Net Worth: $1 Billion (Nigerian)

This billionaire runs BUA Group, a conglomerate active in flour milling, pasta manufacturing, sugar refining, and ports and terminals management. Rabiu used to work for his father, legendary Kano-based businessman, Isyaku Rabiu, before striking out on his own in 1988, importing rice, sugar, edible oils as well as steel and iron rods.

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