- Business
- Tokuyama Corporation Tokuyama Corporation (TKYMY) manufactures and sells basic chemicals, specialty products, cement, and related materials primarily in Japan, with operations extending to Taiwan, China, the United States, and other regions; the company produces caustic soda (liquid and solid forms), propylene oxide, vinyl chloride monomer, polyvinyl chloride resin, soda ash, calcium chloride, high-purity polycrystalline silicon, fumed silica under the REOLOSIL brand, spherical silica products such as EXCELICA and SILIFIL, aluminum nitride powders and ceramics under the SHAPAL brand, boron nitride, high-purity chemicals for electronics including IPA SE and photoresist developers, portland cement varieties, dental materials through Tokuyama Dental Corporation, medical diagnosis systems via A&T Corporation, in vitro diagnostics from MEDICAL&BIOLOGICAL LABORATORIES Co., Ltd., microporous films like Porum and NF Sheet, photochromic materials, hard coating solutions for lenses under the TS-56 Series, APIs and intermediates such as di-tert-butyl dicarbonate and Triazimoch, hydrophobic silica aerogel Airlica for cosmetics, ion exchange membranes through ASTOM Corporation, and waste gypsum recycling products. Founded in 1918 as Nihon Soda Kogyo Co., Ltd. and headquartered at Front Place Akihabara in Tokyo with its registered headquarters and primary factory in Shunan-shi, Yamaguchi Prefecture, Tokuyama operates through segments including chemicals, cement, electronic and advanced materials, life science, and eco business, serving industries such as semiconductors, construction, healthcare, cosmetics, and environmental management. In recent developments, the company completed the acquisition of a newly established entity succeeding JSR Corporation's in vitro diagnostic and in vitro diagnostic materials businesses on October 1, 2025, renaming it Tokuyama Life Science Corporation for consolidation starting in the second half of fiscal 2025; additionally, Tokuyama reported Q2 fiscal 2025 results with increased operating profit from cost improvements despite lower net sales due to vinyl chloride price declines, alongside strong semiconductor-related product performance.