Tokuyama Corp. engages in the manufacture and sale of chemicals used for the construction and industrial industries. It operates through the following segments: Chemicals, Specialty Products, Cement, Life and Amenity, and Others. The Chemicals segment produces and markets a range of products from basic chemicals, such as caustic soda, soda ash, and chlorine. The Specialty Products segment involves in the development and sale of products, such as polycrystalline silicon, fumed silica, precipitated silica, aluminum nitride, pharmaceutical ingredients, and intermediates. The Cement segment includes the production and distribution of cement and cement related products, such as Ordinary Portland cement, blast-furnace slag cement, ready-mixed concrete, cement-type stabilizer, and waste treatments. The Life and Amenity segment includes polyolefin film, plastic window sashes, medical diagnosis systems, dental materials and equipment, gas sensors, and ion exchange membranes. The company was founded by Katsujiro Iwai on February 16, 1918 and is headquartered in Tokyo, Japan.