Lee Ku Industrial Co., Ltd. operates in the non-ferrous materials industry in South Korea. It offers oxygen-free copper, tough pitch copper, and phosphorus deoxidized copper, along with red brass, brass, phosphor bronze, and other alloys such as detonator brass, naval brass, tin brass, tin copper, LEEKU ferrous copper, and CuFe2P. The company was founded in 1968 and is headquartered in Pyeongtaek-Si, South Korea.