2) Johann Rupert – Net worth: $7.4 Billion (South African)

Johann Rupert is a luxury goods billionaire. He is the chairman of Compagnie Financiere Richemont, a Swiss company best known for brands like Cartier and Montblanc. Rupert owns 7 percent stake in Remgro and 25 percent of Reinet. He worked for sometime at Chase Manhattan Bank. He has been a vocal opponent of fracking.

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