OCI Company Ltd, formerly DC Chemical Co., Ltd., is a Korea-based chemical company specialized in the areas of inorganic chemicals, coal and petrochemicals and fine chemicals processing business. Its inorganic chemicals consist of hydrogen peroxide, soda ash, sodium carbonate, peroxyhydrate, fumed silica and others. Its coal and petrochemicals include carbon black, toluene, xylene and benzene, among others. Its fine chemicals include chemical reagents for laboratory experiments and cleansing equipment, carbofuran for plant hopper, and sodium cyanate. The Company also produces polyvinyl chloride (PVC) windows for construction industry.