Shin-Etsu Chemical Co., Ltd. engages in the manufacture and sale of industrial chemicals. The company is headquartered in Chiyoda-Ku, Tokyo-To and currently employs 26,004 full-time employees. The firm operates through four business segments. The Life Environment Materials segment is engaged in the provision of polyvinyl chloride resin, caustic soda, methanol, chloromethane, and poval. The Electronic Materials segment is engaged in the provision of semiconductor silicon, rare earth magnets (for electronics industry and general use), semiconductor encapsulants, packaging materials for light-emitting diodes (LEDs), photoresists, mask blanks, and synthetic quartz products. The Performance Materials segment is engaged in the provision of silicones, cellulose derivatives, metallic silicon, synthetic sex pheromones, polyvinyl chloride-vinyl acetate copolymer resins, liquid fluoroelastomers, and pellicles. The Processing, Trading, and Technical Services segment is engaged in provision of resin processing products, technology and plant exports, product imports and exports, and engineering.