Denka Co., Ltd. engages in the chemical manufacturing business that includes organic, inorganic, and electronic materials, processed resin products, and pharmaceuticals. It operates through the following segments: Elastomers and Performance Plastics, Infrastructure and Inorganic Materials, Electronics and Innovative Products, Life Science and Environment Products, and Others. The Elastomers and Performance Plastics segment provides styrene-based resins, acetylene-based organic chemicals, and chemical products. The Infrastructure and Inorganic Materials segment offers fertilizers, inorganic chemicals, cement, and special cement additives. The Electronics and Innovative Products segment handles thermal emission components, fused silica filler, ceramic moldings, and electronic component transfer materials. The Life Science and Environment Products segment deals with food packaging materials, electrical insulation tape, plastic rain gutters, and join function improvement agent. The Others segment handles plant engineering and trading businesses. The company was founded by Tsuneichi Fujiyama on May 1, 1915 and is headquartered in Tokyo, Japan.