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Tosoh Corporation (TOSCF)

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At close: 09:57AM EDT

Tosoh Corporation

3-8-2, Shiba
Tokyo 105-8623
81 3 5427 5118

Sector(s)Basic Materials
Full-time employees13,858

Key executives

NameTitlePayExercisedYear born
Mr. Mamoru KuwadaPres & Representative DirectorN/AN/A1960
Satoru YonezawaSr. VP, GM of Corp. Control & Accounting and Sr. GM of China OperationsN/AN/AN/A
Mr. Yoshiyuki UchiyamaVP & GM of HRN/AN/A1961
Mr. Toshinori YamamotoCorp. Adviser & DirectorN/AN/A1955
Mr. Katsushi TashiroSr. EVP, Sr. GM of Nanyo Complex & Representative DirectorN/AN/A1956
Mr. Toru AdachiExec. VP & DirectorN/AN/A1960
Toru DoiSr. VP, GM of R&D Planning, Pres of Specialty Group and DirectorN/AN/A1962
Akihiro YoshimizuSr. VP & Sr. GM of Yokkaichi ComplexN/AN/AN/A
Amounts are as of , and compensation values are for the last fiscal year ending on that date. Pay includes salary, bonuses, etc. Exercised is the value of options exercised during the fiscal year. Currency in USD.


Tosoh Corporation manufactures and sells basic chemicals, petrochemicals, specialty products, and fine chemicals worldwide. It operates through four segments: Petrochemical, Chlor-Alkali, Specialty, and Engineering. The company provides materials, including battery, fabricated quartzware, silica glass, thin film depositions, zeolites for catalysts and molecular sieves, zirconia injection mold components and compounds, zirconia grinding and dispersion media, and zirconia fine beads and powders. It also offers chromatographic columns, and media and diagnostic systems; clinical diagnostic systems; Portland cement and blast-furnace slag cement; and caustic soda, vinyl chloride monomer, calcium hypochlorite, and sodium bicarbonate. In addition, the company provides ethylene, propylene, C4 fraction, tertiary butyl alcohol, cumene, and aromatic compounds; and ethyleneamines, bromine, hydrobromic acids, flame retardants, non-aqueous solvents, chelating agents, ethylene dichloride, and sodium styrenesulfonate. Further, it offers polymers, such as ethylene vinyl-acetate copolymers, adhesive polymers, low and high-density polyethylene products, synthetic rubbers, functional polymers, and polyvinyl chloride pastes; and polyurethanes (PU), including methylene diphenyl diisocyanate, toluene diisocyanate, hexamethylene diisocyanate, adhesives, coating resins, elastomers, polyisocyanates for PU paints, and polyols. Additionally, it manufactures and sells water treatment systems; and engages in the construction and repair businesses. It also offers logistics, analytic, personnel management, and information technology services.

Corporate governance

Tosoh Corporation’s ISS governance QualityScore as of 1 October 2022 is 7. The pillar scores are Audit: 1; Board: 7; Shareholder rights: 6; Compensation: 5.

Corporate governance scores courtesy of Institutional Shareholder Services (ISS). Scores indicate decile rank relative to index or region. A decile score of 1 indicates lower governance risk, while 10 indicates higher governance risk.