Commodity Chemicals Chlor-alkali . Caustic soda Has a wide variety of industrial uses, notably in the pulping and bleaching of wood chips during pulp production, and the production of chemicals . Hydrochloric acid We combine chlorine and hydrogen produced through electrolysis to manufacture hydrochloric acid. Toagosei leads Japanese industry in terms of volume produced, and our products are used in the manufacture of seasonings, pharmaceuticals, and a wide range of chemicals. . Sodium hypochlorite Sodium hypochlorite, used for disinfection of water, is in growing demand from makers of high-grade disinfecting agents used in water supply systems, and we are steadily increasing our production capacity. Sulfuric acid Used in the production of fertilizers, synthetic fibers, and inorganic chemicals High-purity inorganic chemicals . High-purity liquefied hydrogen chloride This is an essential agent in the semiconductor production process, and is used in such leading-edge manufacturing industries as electronics, pharmaceuticals, and LCDs. Being the sole manufacturer of this agent in Japan, Toagosei enjoys a world-class reputation for product quality because of its comprehensive management services, encompassing the provision and maintenance of containers. Industrial gases . Oxygen . Nitrogen . Argon We handle oxygen, nitrogen, argon, and many other industrial-use gases, meeting the needs of a diverse range of users from key industries to cutting-edge enterprises. In our commodity chemicals business, which boasts the longest history of all operations in the Toagosei Group, we produce caustic soda and chlorine through electrolysis of salt water. Chlorine is then combined with other elements to produce a variety of inorganic chemical products such as chlorides, which form many basic industrial raw materials. We also manufacture high-purity inorganic chemical products, which are employed in the production of such leading-edge industrial products as semiconductors and liquid crystals. In this way, we work to develop new products that match society’s ever-evolving needs. 32.0% Sales by Segment Our Business Activities and Major Products P10 0 10,000 30,000 20,000 50,000 40,000 (Millions of yen) (Millions of yen) 0 3,000 7,000 5,000 6,000 4,000 1,000 2,000 47,435 4,413 10 11 12 10 11 12 Products created by electrolysis of salt water Caustic soda is used in papermaking Sodium hypochlorite High-purity products 2 Annual Report 2012