It was a comprehensive nonferrous metal production facility including smelters for gold, copper and zinc, other metal rolling and alloy production, smelting by-products, and chemical fertiliser production.
[1] Concentrates and ores were received from the mines at Taedae-ri and Suan.
The Chinnampo Smelter was originally opened in stages between 1913 and 1915 as a privately owned company during the Japanese colonial era.
Destroyed during the Pacific War, it was repaired and reopened in January 1946.
[citation needed] The complex was closed down in the late 1990s and had been demolished by 2001, reportedly due to pollution issues.