OCI Company Ltd.

OCI provides the manufacture and sell polysilicon, carbon black, and related products. It offers semiconductor materials, such as polysilicon, phosphoric acid, hydrogen peroxide, semiconductor precursor, and fumed silica.

Its portfolio also includes Li-ion battery materials, including caustic soda and high softening paint pitch, and carbon materials comprising carbon black, pitch, BTX, and plasticizers. The company provides TDI products. Incorporated in 1959, OCI is headquartered in Seoul, South Korea.