1915

Establishment of OSAKA SODA CO., LTD. with capital of \750,000 in Osaka for the manufacture and sale of caustic soda

1917 Opening of Kokura Plant in Kita-Kyushu, Fukuoka
1931 Opening of Amagasaki Plant in Amagasaki City, Hyogo
1948 Opening of Tokyo Branch
1949

Listed on the First Section of the Osaka Stock Exchange

1952 Opening of Matsuyama Plant in Matsuyama City, Ehime
1953

Listed on the First Section of the Tokyo Stock Exchange

1956 Establishment of DAISO TRADING CO., LTD.
1961 Opening of Research Center in Amagasaki City, Hyogo
1962

Started production of diallyl phthalate resin

1968 Establishment of OKAYAMA CHEMICAL CO., LTD. jointly founded by Asahi Chemical Industry Co., Ltd. (currently Asahi Kasei Chemicals Corporation)
1970

Establishment of DAISO ORGANICS CO., LTD.
Opening of Mizushima Plant, OKAYAMA CHEMICAL CO., LTD.

1971

Started production of allyl chloride and epichlorohydrin

1975

Establishment of DAISO ENGINEERING CO., LTD.
Merger and acquisition of DAISO ORGANICS CO., LTD. to create the OSAKA SODA Mizushima Plant

1978

Started production of allyl glycidyl ether

1979

Started production of epichlorohydrin rubber

1988 Changing the company name from OSAKA SODA CO., LTD. to DAISO CO., LTD.
1990 Opening of Duesseldorf Representative Office in Germany
1992

Started production of silica gel for liquid chromatography

2001

Started production of polysulfide silane coupling agent CABRUS™
Establishment of JMR CO., LTD. a subsidiary of DAISO ENGINEERING CO., LTD.

2002 Conversion of Chori Chemical Co., Ltd. to a subsidiary;Changing the company name to DAISO CHEMICAL CO., LTD.
2003 Merger of DAISO TRADING CO., LTD. and DAISO CHEMICAL CO., LTD. to form newly DAISO CHEMICAL CO., LTD.
2005 Establishment of DAISO CHEMICAL (Shanghai) CO. LTD. a subsidiary of DAISO CHEMICAL CO., LTD.
2006

Establishment of DS WELLFOODS CO., LTD.
Establishment of DAISO Fine Chem USA, Inc.
Establishment of TAIWAN DAISO CHEMICAL CO., LTD. a subsidiary of DAISO CHEMICAL CO., LTD.

2008

Establishment of DAISO Fine Chem GmbH
Establishment of DS LOGISTICS CO., LTD.
Acquisition of SANYO FINE CO., LTD. 

2010

Acquisition of Food & Bio Research Center, Inc.
Merger of SANYO FINE CO., LTD. with Food & Bio Research Center, Inc.

2012

Termination of the joint venture with Asahi Kasei Chemicals Corporation OKAYAMA CHEMICAL CO., LTD. is transformed to a wholly owned subsidiary of DAISO CO., LTD.
Acquisition of IMPEX CORPORATION
Establishment of DAISO CHEMICAL (THAILAND) CO., LTD.

2015

Changing the company name from DAISO CO., LTD. to OSAKA SODA CO., LTD.

2016

Merger of DAISO CHEMICAL CO., LTD. with IMPEX CORPORATION