From 1938 to 1939, 60 C12s were converted to metre gauge and shipped to the North China Transportation Company, where they operated primarily between Zhengding and Taiyuan. They were classified プレA (PureA). In 1939 Shijiazhuang–Taiyuan Railway was converted to standard gauge, these locomotives removed to Datong–Puzhou Railway north section. After the establishment of the People's Republic of China, they were taken over by the China Railway, where they were classified ㄆㄌ51 in 1951, and PL51 in 1959. In 1956 the Datong–Puzhou Railway north section was reconverted to standard gauge, they were transferred to Vietnam, and they were classified 131.
From 1936 to 1941, the Nippon-Sharyo was built in 7 C12s for Governor-General of Taiwan Railway. After World War II, they were taken over by Taiwan Railways Administration, and they were classified CK120. CK124 is preserved at Changhua Locomotive Depot.
A large number of Class C12 locomotives are preserved, as listed below, with some in working order.
|Wikimedia Commons has media related to C12 steam locomotives.|