Koei Chemical Co., Ltd. began production of acetic acid for the medical industry in 1917. 100 years have elapsed since that time.
We draw on the wealth of R&D expertise we have developed as a company to provide nitrogen-containing compounds for various needs.
1917
Founded as Koei Pharmaceutical Co., Ltd. in Osaka and started to produce acetic acid.
1st President NOGUCHI Shinkichi
1934
Started to produce formalin.
1950
Changed the company name to
Koei Chemical Co., Ltd.
1952
Started to produce pentaerythritol.
1962
Started to produce amines.
1964
Started to produce pyridine bases.
1966
Expanded the fine chemical facility for Amines.
1967
"Okochi Memorial Production Prize" for the production of pyridine bases
1971-72
Started to produce formalin, trimethylolpropane, sodium hydrosulfite, amines and pyridine bases in Chiba Plant.
1980
Started to produce chemical body warmers.
1985
Started to produce 2-cyanopyrazine.
1997
Construction of a multi-purpose vapor-phase plant in Chiba Plant.
Listed on the 2nd Section of the Osaka Securities Exchange.
2006
Expanded the liquid-phase reaction plant in Chiba Plant.
Expanded the vapor-phase reaction plant in Chiba Plant.
2010
Opened a new laboratory in Chiba Plant and production and research functions centralized to Chiba Plant.
2013
Relocated Tokyo Head Office to the present address.
2016
Closedown of Osaka Plant.
Changed the registered address to Sodegaura-shi,Chiba
2017
Celebration the 100th anniversary.
Expanded the liquid-phase reaction plant.
Built the general office building in Chiba Plant.
