Ko Yo Chemical (Group) Limited, an investment holding company, engages in the research and development, manufacture, marketing, and distribution of chemical products and chemical fertilizers in the People's Republic of China. The company offers Urea, Ammonia, Methanol, N-methylpyrrolidone, and N,N-dimethylformamide. It is also involved in the exploration and exploitation of phosphorous mine; production of phosphoric acid and propylene oxide; and manufacture and sale of engineering plastics. Ko Yo Chemical (Group) Limited was incorporated in 2002 and is headquartered in Causeway Bay, Hong Kong.