Denki Kagaku Kogyo Kabushiki Kaisha's name is as complicated as some of the chemicals it manufactures. The company, which is the Denka Group primary subsidiary, operates four business segments: organic materials, inorganic materials, electronic products, and functional materials and processed products. It makes products such as fertilizers, synthetic rubber, cement additives for construction and cement production, polyvinyl chloride (PVC) and vinyl acetate resins used to produce synthetic rubber and plastics, and semiconductor-related electronic materials (including styrene resins used in semiconductor chips).