OCI Holdings Co. Ltd. engages in the manufacturing and sales of chemical products. It operates through the following business divisions: Basic Chemical, Carbon Chemical, Energy Solution, and the Other. The Basic Chemical division provides polysilicon and peroxide-related products, and others. The Carbon Chemical division offers pitch, carbon black, and benzene-related products. The Energy Solution division provides solar photovoltaic stations downstream and others. The company was founded on August 5, 1959 and is headquartered in Seoul, South Korea.