6. Kwabena Duffour -$680 million
Kwabena Duffuor was the Finance Minister of Ghana. He has also served as the governor of the Bank of Ghana. He was named as one of the four best Central Bank Governors in the World at an IMF/World Bank meeting in 1999.
He is a Fellow of the Akuafo Hall, University of Ghana, and a Fellow of the Chartered Institute of Bankers.
Duffuor is the founder and chairman of HODA Holdings, a business entity comprising Insurance, Banking, Real Estates, Farming, Mining and Media. He is also the founder and president of the Institute for Fiscal Studies in Ghana, a non-profit think-tank providing economic advocacy and training which he established in March, 2013. He is also the founder of uniBank which controversially collapsed in 2018/