Nana Osei Owusu Banahene is the Nkosuohene of Asanteman, at the Manhyia Palace, Kumasi. He is an Educationist by profession. He attended Mfantipim School at Cape Coast and is also a graduate of the Wesley College, Kumasi. He taught in several institutions between 1981 – 1985 before joining Messrs E. K. Osei Engineers and Contractors Company Ltd. (1985 – 1993), a family civil construction firm as an Operations and Purchasing Manager. In addition to his traditional responsibilities, Nana is the Managing Director of his own civil engineering and construction firm, Messrs Banasuo Construction Limited, which is very active in the construction business in the Ashanti Region. He has also previously served as a presiding member for the Kumasi Metropolitan Assembly.

Nana is currently a Director of Intravenous Infusions Limited and KAS Products Limited – a stone quarry at Buoho near Kumasi. Nana has attended several programmes on development strategies, leadership, alternate dispute resolution, negotiation and conflicts resolution, skills which he brings to bear on the corporate governance of Intravenous Infusions PLC.

He joined the Board of Intravenous Infusions PLC on 18th September, 2001.