Taro Aso was president of the Aso Mining Company 's successor , Aso Cement Company , in the 1970s before entering politics .
Aso 's wife serves on its board of directors .
Aso   was Aso of the Aso Mining Company 's successor , Aso Cement Company , in the 1970s before entering politics .
Aso 's wife serves on its board of directors .