Graduated from Gyoyo Gakusha School in Nagasaki Prefecture (1907) and entered Taiwan (Formosa) Sugar Manufacturing Company
Imura Koki became manager of Chuetsu Hydroelectric Power Company (1927) and established Fujikoshi Steel Industry Company (1928). He was a director of Motorcar Industry Association, chairman of Hokuriku League of Employers. Imura Koki was a president of Fujikoshi Agricultural and Forestry Industrial Association.