Seiwa Holdings plans to acquire Miyama Riken Kogyo, expanding its capabilities in metal and plastic surface finishing.

Natoco completed its acquisition of Japanese coatings manufacturer Tohpe, making it a wholly owned subsidiary.

Nippon Shokubai acquired Goo Chemical, a Kyoto-based maker of electronic and specialty resins, for ¥20.0bn. The deal completed on November 2, 2026.

Evonik partnered with Toyotsu Chemiplas Corp. and Sanyo Chemical Industries on October 19, 2026, to develop a recycling model for polyurethane foam in Japan.

Toshiba Materials announced a new facility for silicon nitride balls on its Yokohama headquarters site, budgeted at over 5 billion yen (about US$38 million), raising capacity 50% versus fiscal 2021. Production is expected to start in November 2023.

Kaneka Corporation has decided to significantly increase production capacity for its PHBH biodegradable polymer Green Planet in Japan, with further capacity planned in Europe and America.

Bostik started up a new industrial adhesives plant in Nara, Japan, within the Bostik-Nitta joint venture, 80% owned by Arkema. The lines serve non-woven hygiene and industrial packaging, labelling, transportation and electronics markets.

Kaneka has completed a PHBH biodegradable polymer plant with annual production capacity of about 5,000 tons, five times its previous model, at an investment of around 2.5 billion yen.

TBM began construction on August 26, 2019 of its second domestic LIMEX plant in Tagajo, Miyagi Prefecture, with about 25,000 tonnes annual output and operations planned for winter 2020, employing around 60 local workers.

Dainichiseika Color & Chemicals decided to build a new plant at the Bando Inter Industrial Park in Ibaraki Prefecture, Japan, producing gravure inks and coating agents, with construction from November 2019 and operations from July 2021.