The Bank of Chōsen, known from 1909 to 1911 as the Bank of Korea and transcribed after 1945 as Bank of Joseon, was a colonial bank that served as bank of issue for Korea under Japanese rule as well as being a commercial bank, with significant operations beyond Korea until 1945. Formed in 1909 by reorganization of the former Korean operations of Japan's Dai-Ichi Bank, it issued the Korean yen from 1910 to 1945. Its seat was initially established in Seoul, relocated to Tokyo in May 1924, and subsequently relocated back to Keijō. It has been described as "a primary component of Japanese foreign expansionism".