Kanto Electric & Chemical Industry Co., Ltd.

Established with a capital of 4 million yen for the production of metallic magnesium and sodium hydroxide. The founding office was located in the Mitsubishi Nakadō 8th Building. Metallic magnesium electrolytic cell.

Established with a capital of 4 million yen to manufacture metallic magnesium and caustic soda.

Shibukawa plant commenced operations. Production of metallic magnesium and sodium hydroxide began.

Shibukawa factory commenced operations.

Production of metallic magnesium at the Shibukawa plant was discontinued after the war.

Stopped manufacturing metallic magnesium.

Started production of trichloroethylene. Trichloroethylene production facilities.

Started manufacturing trichloroethylene.

Shares were registered at the over-the-counter market.

Registered shares at the over-the-counter market.

Started production of perchloroethylene.

Started manufacturing paracrolene ethylene.

Started production of cyclohexanone and cyclohexanol.

Started manufacturing cyclohexanone and cyclohexanol.

Opened Osaka sales office (now Osaka branch).

Opened Osaka Sales Office (now Osaka Branch).

Listed on the Second Section of the Tokyo Stock Exchange.

Listed on the Tokyo Stock Exchange Second Section.

Opened Nagoya sales office.

Opened Nagoya Sales Office.

Designated to the First Section of the Tokyo Stock Exchange.

Designated for the Tokyo Stock Exchange First Section.

Shimizu plant commenced operations. Shimizu plant at the completion of Phase 1 construction.

Mizushima factory commenced operations.

Started production of vinyl chloride.

Started manufacturing vinyl chloride.

Established electrolytic fluorination technology (first in Japan). Started production of hypochlorite sodium.

Established fluorine acid electrolysis technology (first in Japan).

Started production of sulfur hexafluoride. Started production of aluminum chloride. Partnered with Morishita Benra Industrial Co., Ltd. in the iron oxide business.

Started manufacturing sulfur hexafluoride.

Started manufacturing carriers for copiers.

Start manufacturing copier carriers

Started manufacturing magnetic alloy powder "MAP". Metal tape using MAP.

Start manufacturing magnetic alloy powder 'MAP'

Started manufacturing tetrafluoromethane.

Start manufacturing tetrafluoromethane

Started manufacturing trifluoromethane.

Start manufacturing trifluoromethane

Started manufacturing octafluoropropane.

Start manufacturing octafluoropropane

Started manufacturing hexafluorotungsten. Completed conversion from mercury electrode to ion‑exchange membrane electrode.

Start manufacturing hexafluorotungsten

Started manufacturing nitrogen trifluoride. Fluorine gas ISO container.

Start manufacturing trifluoronitrogen

Started manufacturing ferrite carriers. Started manufacturing magnetite for pigments.

Start manufacturing tetrafluorosilicon

Started manufacturing silicon tetrafluoride. Started selling chlorine‑based solvent "Kandendry" for water‑removal drying. Started manufacturing hexafluoroethane.

Shibukawa plant obtains ISO9002 certification for five types of fluorine-based products

Shibukawa plant obtained ISO9002 certification for five fluorine products.

Start manufacturing trifluorochlorine

Started manufacturing trichlorofluoromethane. Started fluorine acid electrolysis at Mizushima plant. Started manufacturing lithium hexafluorophosphate (equipment).

Start electrolyzing hydrofluoric acid at Mizushima plant

Mizushima plant obtained ISO9002 certification.

Shibukawa and Mizushima plants obtain ISO14001 certification

Shibukawa and Mizushima plants obtained ISO14001 certification.

Shibukawa and Mizushima plants obtain ISO9001 certification

Shibukawa and Mizushima plants obtained ISO9001 certification. Established Kanto Denka KOREA Co., Ltd.

Establishment of Kanto Denka KOREA Co., Ltd.

Opening of Taiwan representative office

Established Taiwan representative office.

Discontinuation of magnetic alloy powder 'MAP' manufacturing

Established Taiwan Kanto Electric Co., Ltd.

Established Taiwan Kanto Electric Co., Ltd.

Discontinued manufacturing magnetic alloy powder "MAP". Stopped soda electrolysis at Shibukawa plant. Started manufacturing hexafluoro‑1,3‑butadiene.

Start manufacturing hexafluoro-1,3-butadiene

Start manufacturing monofluoromethane and carbonyl sulfide

Start production of hexafluoro-1,3-butadiene

Started manufacturing monofluoromethane and carbonyl sulfide.

Start production of monofluoromethane and carbonyl sulfide

Established Kachik (Shanghai) Trading Co., Ltd.

Kaidike (Shanghai) Trading Co., Ltd. established.

Started manufacturing lithium hexafluoride. Established Kanto Denka Fine Products Korea Co., Ltd.

Commencement of Hōfūka Lithium production.

Establishment of Kanto Electric Fine Products Korea Co., Ltd.

Established Taiwan Kanto Denka Co., Ltd. Singapore branch.

Opening of Taiwan Kanto Electric Co., Ltd. Singapore branch.

Xuan Cheng Ke Ke Technology Co., Ltd. established.

Establishment of Xuancheng Kaidike Technology Co., Ltd.

Transitioned to the Tokyo Stock Exchange Prime Market. Established the Kumamoto Division.

Transition to the Tokyo Stock Exchange Prime market.

Opening of Kumamoto business division.

Started manufacturing KSG-14. Motoshita Benra Industrial Co., Ltd. renamed to Kanto Denka FineTech Co., Ltd.

Commencement of KSG-14 production.

Morishita Benraku Industrial Co., Ltd. changes its name to Kanto Electric Fine Tech Co., Ltd.

Started manufacturing KSG-5.

Commencement of KSG-5 production.

The R&D project involving Kanto Denka Industrial was selected for the 2025 (Reiwa 7) Innovative Medical Technology R&D Promotion Project (Industry-Academia-Government Joint Type) by the National Research and Development Agency, Japan Medical Research and Development Agency (AMED).

The research and development project involving Kanto Electric Industrial Co., Ltd. was selected for the 2025 (Reiwa 7) 'Innovative Medical Technology R&D Promotion Project (Industry-Academia-Government Joint Type)' by the National Research and Development Agency, Japan Medical Research and Development Agency (AMED).