Abe Sen'ichi

Abe joined the government-general in Seoul as secretary just after graduation from Tokyo University in 1919. He was later appointed mayor of P'yŏngyang and then governor of South Kyŏngsang Province. Abe managed the Korean operations of Chōsen Gold Industry, and later organized Okkye Gold with Kim Yŏn-su. Abe served as president of the government's control agency, the Chosen Gold Sales and Purchase Company, during the war years.

Ariga Mitsutoyo

Born in 1873, Ariga joined the Tax Bureau in Japan after graduation from Tokyo Law Academy in 1895. He soon came to Korea as an official in the finance section of the residency-general and the government-general, before appointment as a director and then president of the Industrial Bank at age forty-six in 1919. Successful direction of the bank led to his appointment to the Japanese House of Peers in September of 1934. Retiring from the bank in 1937, Ariga went on to the presidencies of such prominent Japanese firms as Chōsen Refining, the Japan High Frequency Heavy Industry, and Kankō Hydroelectric.

Ch'oe Ch'ang-hak

Born in 1891 in North P'yŏngan Province, Ch'oe gained wealth and presitige as the “gold mining king” through development of Samsŏng Mining, sold to Mitsui Mining in 1929.