|1938||Incorporates with capital of \4 million to manufacture metallic magnesium, caustic soda and hydrochloric acid.|
|1939||Starts producing metallic magnesium and caustic soda at the Shibukawa Plant.|
|1945||Ceases producing metallic magnesium and starts manufacturing inorganic chemicals with caustic soda as the main product line.|
|1950||Launches production of trichloroethylene.|
|1951||Lists stock on the over-the-counter market.|
|1952||Begins producing perchloroethylene.|
|1956||Starts producing cyclohexanone and cyclohexanol.|
|1960||Opens Osaka sales office(branch office now).|
|1961||Lists stock on the Second Section of the Tokyo Stock Exchange.|
|1962||Opens Nagoya sales office.|
|1963||Lists stock on the First Section of the Tokyo Stock Exchange.|
|1965||Inaugurates Mizushima Plant.|
|1967||Starts producing 1,1,1-trichloroethane and vinylidene chloride.|
|1970|| Introduces first hydrofluoric acid electrolysis technologies to Japan.
Launches production of sodium hypochlorite.
|1971||Begins producing sulfur hexafluoride and aluminum chloride.|
|1977||Commences producing reprographics carriers.|
|1979||Begins production of magnetic alloy powders and iodine pentafluoride.|
|1981||Starts producing carbon tetrafluoride.|
|1983||Launches production of trifluoromethane.|
|1984||Commences producing octafluoropropane.|
|1986||Commences production of tungsten hexafluoride.
Completes switchover at Shibukawa and Mizushima plants to new ion-exchange membrane cell method of electrolytic caustic soda production from mercury cell method.
|1987||Initiates production of nitrogen trifluoride.|
|1988||Starts producing ferrite carriers and magnetite for pigments.|
|1989||Begins producing silicon tetrafluoride and hexafluoroethane.
Initiates sales of Kanden Dry chlorinated solvents for drying agents.
|1995||Obtains ISO 9002 certification for five fluorochemical products at the Shibukawa Plant.|
|1997||Begins producing chlorine trifluoride.
Installs new hydrofluoric acid electrolytic equipment at the Mizushima Plant.
Starts producing lithium hexafluorophosphate.
|1998||Obtains ISO 9002 certification for the Mizushima plants.|
|1999||Obtains ISO 14001 certification for the Mizushima plants.|
|2000||Obtains ISO 9001 certification for the Shibukawa and Mizushima plants.
Establishes Kanto Denka Korea Co.,Ltd.
|2002||Establishes Taiwan Representive Office.|
|2004||Establishes Taiwan Kanto Denka Co.,Ltd .|
|2005||Ceases producing magnetic alloy powders.
Shibukawa Plant withdraws from soda electrolyte business, which is transferred to a single-factory system at the Mizushima Plant.
|2010||Launches Monofluoromethane and Carbonyl sulfide.|
|2011||Establishes Kanto Denka Kogyo(Shanghai)Co.,Ltd.|
|2017||Launches Lithium Tetrafluoroborate
Establishes Kanto Denka Fine Products KOREA Co., Ltd.
|2018||Opens Taiwan Kanto Denka Co.,Ltd.(Singapore Branch)|
|2020||Establishes Xuancheng KDK Technology Co., Ltd.|
|2022||Transits to the Prime Market of the Tokyo Stock Exchange.|