Prior to joining AMC in 2014, Kosei spent 9 years at IFC, as Deputy Representative in Tokyo and Investment Officer at Private Equity and Investment Funds Department in Washington DC. Previously, Kosei worked at the United Nations Development Program (UNDP) in Vientiane, Lao People’s Democratic Republic, and the Sumitomo Bank (currently Sumitomo Mitsui Banking Corporation) in New York, Osaka and Tokyo.

He holds a LLB from Kyoto University and an MBA from Yale School of Management.