Makota Tsutsumi

Plas-Tech Corp. is engaged in the manufacture and sale of plastic materials. It operates through the Compound and Other business segments. The Compound segment manufactures and supplies synthetic resins in the form of pellets, which is used as a raw material for plastic moldings. The Other segment includes generic hose and special molded products businesses. The firm's product offerings encompass vinyl chloride resin compound, polyvinyl chloride (PVC)-based thermoplastic elastomer, PVC-nitrile-based thermoplastic elastomer, polyolefin-based compound, hose, and still-water series. The company was founded on October 31, 1939 and is headquartered in Inashiki-gun, Japan.

Founded in 2000, Taiyo Vinyl Corp. is a subsidiary of Tosoh Corp. that manufactures polyvinyl chloride resins. The company is based in Tokyo, Japan.

Taihei Chemicals Ltd. manufactures and supplies chemicals. It operates through the Plastics and Chemicals divisions. The Plastics Division produces film sheet, plastic films, methacrylic sheet, and conductive sheets. The Chemicals Division develops and markets color chips, industrial nitrocellulose, and adhesives. The company was founded in 1938 and is headquartered in Saitama, Japan.