Tosoh Corporation
Chemical ManufacturingTokyo, Japan51-200 Employees
Tosoh Corporation is a Tokyo-based chemical manufacturing company that serves as the parent of a multinational group comprising more than 100 companies and a workforce exceeding 13,000 people. The Tosoh Corporation itself employs between 51 and 200 people. Founded in 1935, the company is listed on the First Section of the Tokyo Stock Exchange and has a portfolio spanning commodity chemicals as well as specialty products and materials for high-technology and niche markets. Its principal markets include chemical and petrochemical, construction, automotive, consumer electronics, information technology, bioscience, and environmental sectors. Reported revenue falls in the range of $1 billion to $10 billion. In 2026, Tosoh expanded facilities in Yamaguchi and began operating a biomass power plant at the Nanyo Complex, reflecting ongoing expansion and sustainability initiatives.