Tosoh Corporation is a Japan-based chemical company that develops and manufactures basic chemicals, petrochemical products, specialty materials and life science products. Its business serves a range of industries, including construction, automotive, electronics, healthcare, pharmaceuticals and environmental services.
The company’s basic chemicals operations include chlor-alkali products such as caustic soda and chlorine, as well as vinyl chloride monomer and polyvinyl chloride-related materials. Tosoh also produces petrochemical products and advanced materials, including materials used in semiconductor manufacturing, ceramics, separation media and other high-performance applications.
Tosoh’s life science business provides diagnostic systems, reagents and analytical products used in clinical testing, biotechnology and pharmaceutical research. The company was established in Japan in 1935 as Toyo Soda Manufacturing Co., Ltd., later adopting the Tosoh name. It serves customers in Japan and international markets through manufacturing, research and sales operations around the world.
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