History
1946
- Jun
- Founded under the firm name Sanko Shokai.
1947
- Mar
- Established Sanko Kagaku Kogyosho in Arao city.
1949
- Jan
- Changed the firm organization and the firm name from Sanko Shokai to Sanko Co.,Ltd.
1955
- Jan
- Started the formulating of agricultural chemicals as Kyushu Plant,Nippon Soda Co.,Ltd.
1956
- Jan
- Started the production of phenyl-phenols.
1956
- Sep
- Reorganized Sanko Kagaku Kogyosho, and with the capital 2million yen,established Sanko Chemical Co.,Ltd.
1962
- Apr
- Controlled and managed Sanko Sewing Co.,Ltd.
1966
- Jan
- Started the formulating of agricultural chemicals as Arao Plant,Kumiai Kagaku Kogyo Co.,Ltd.
1968
- Sep
- Completed a synthesis plant of paraphenylphenol (P-PP) and started its production.
1970
- May
- Started the production of a new organic phosphorus compound HCA.
1973
- Dec
- Completed a synthesis plant of orthophenylphenol (O-PP)
1974
- Oct
- Constructed Shiga Plant and started the production of a developer for carbonless copying paper.
1975
- Oct
- Established Sanko Research & Development Laboratories Co.,Ltd. Constructed its laboratory at Ibaraki city,Osaka Prefecture in May,1982.
1977
- Oct
- Started the production of flame retardant GHM.
1986
- Sep
- Constructed a plant for new Speciality Chemicals in Arao site.
1991
- Apr
- Acquired Dai-ichi Nylon Kogyo Co.,Ltd. and established Shiga Buisiness Office.
1991
- Jun
- Established Sanko Europe GmbH (Dusseldorf,Reorganized its Representative office).
1991
- Oct
- Set up Shiga Laboratory, and constructed a multipurpose Plant for developmant.
1992
- Jun
- Established Sanko Medic Co.,Ltd.
1996
- Apr
- Sanko Co.,Ltd. merged with Sanko Chemical Co.,Ltd.
1998
- Apr
- Established Sanko Tac Sysrem Co.,Ltd.
2000
- Jul
- Constructed a plant for HCA (HP-1 plant) at Arao site.
2002
- Jul
- Established Sanko (Thailand) CO.,ltd. (Bangkok).
2002
- Dec
- Constructed a resin molding plant at Shiga site.
2004
- Jul
- Established SANKO U.S.A., Inc. (Chicago).
2005
- May
- Constructed a plant for NKS at Arao site.
2005
- Nov
- Established Representative office in Shanghai ,China.
2006
- Dec
- Established SANKO TRADING (SHANGHAI) CO.,LTD. (Reorganized its Representative office).
2008
- Nov
- Constructed a plant for HCA(HP-2 Plant) at Arao site
2011
- Jan
- Constructed a plant for HCA(HP-3 Plant) at Arao site
2012
- Apr
- Constructed Ariake site.
2014
- Apr
- Expanded Moriyama Works of Sanko Medic Co.,Ltd. at Shiga site.
2019
- Apr
- Moved our headquarters to Tokyo.
2020
- Jan
- Established SANKO VINA CO.,ltd.(Vietnam)
2022
- Feb
- Established SANKO ASIA CO.,ltd.(Bangkok, Thailand)