Towa Pharmaceutical Company establishes at Higashi-ku, Osaka (currently known as Chuo-ku, Osaka) as a wholesale and brokerage of pharmaceutical raw materials.
1957
Towa Pharmaceutical Co., Ltd (abbreviated as Towa) is established and incorporated at Higashi-ku Osaka (currently known as Chuo-ku, Osaka). The Gamo Plant is constructed at Jyoto-ku, Osaka and production of OTC drugs begins.
1964
Neyagawa Plant is constructed at Neyagawa, Osaka. Gamo Plant is closed and unified to Neyagawa Plant.
1965
Converted to the manufacture and sale of ethical drugs.
1974
Towa moves its corporate headquarters to new office in Kadoma, Osaka.
1975
The Kadoma Plant is constructed at Kadoma, Osaka.
1978
The Osaka Plant is constructed at the headquarters site. Neyagawa Plant is unified to Osaka Plant and Kadoma Plant. Kadoma Laboratory is constructed at Kadoma, Osaka. Distribution Center is constructed at Kadoma, Osaka.
1982
Osaka Daini Plant is constructed at Kadoma, Osaka. Kadoma Laboratory enlarges to conform to GLP.
1983
The Okayama Plant is constructed at Shoo-cho, Katsuta-gun, Okayama.
1984
Towa acquires Beppu Hot Spring Science Institute Ltd., renames it Oita Plant, and starts manufacturing injections there.
1987
Kadoma Plant is closed and unified to Osaka Plant and Okayama Plant.
1994
Towa's shares are listed on the over-the-counter market of the Japan Securities Dealers Association.
1995
Distribution center is constructed in the Okayama Plant site.
1997
Towa moves its corporate headquarters to newly built office in Kadoma, Osaka.
1998
Osaka Research Center and Osaka Distribution Center are constructed at Kadoma, Osaka. Towa purchases Mect Co., Ltd.'s Tohoku Plant, re-opens it as Yamagata Daiichi Plant.
2003
Towa purchases J-Dolph Co., Ltd.（currently known as J-DOLPH Pharmaceutical CO., LTD.）, and makes it subsidiary.
2004
Towa's shares are listed on the second of Tokyo Stock Exchange (TSE).
2005
Listing of Towa's share transfers to the first section of TSE.
2006
Osaka Daini Plant is closed and unified to the Osaka plant which is constructed at Kadoma, Japan.
2009
Oita Plant is closed and unified to the Okayama plant.
2010
Towa purchases Daichi Kasei Co., Ltd., and makes it subsidiary.
2012
Yamagata Plant is constructed at Kaminoyama, Yamagata. East Japan Distribution Center is constructed at Kaminoyama, Yamagata. West Japan Distribution Center is constructed at Shoo-cho, Katsuta-gun, Okayama. Osaka and Okayama Distribution Center are closed.
2014
Yamagata Daiichi Plant is closed.
2016
Established Greencaps Pharmacetical Co.,Ltd. JV with Sankyo Co., Ltd.
2017
East Japan Distribution Center is moved and constructed at Yamagata, Yamagata.
2018
Established T Square Solutions CO., LTD. JV with TIS Co., Ltd.
2020
Towa purchases Pensa Investments, S.L.（currently known as Towa Pharma International Holdings, S.L.）, and makes it subsidiary. Dissolved JV agreement with Sankyo Co., Ltd. And acquired all shares of Greencaps Pharmaceutical, making it subsidiary.
2021
Towa purchases Protosera Inc. and makes it subsidiary.
2022
Towa purchases Susho Pharmaceutical Co., Ltd. and makes it subsidiary. Moved to the Prime section of the TSE due to the revision of the TSE's market classification.
2024
Towa purchases KAMATA Co., Ltd. and makes it subsidiary.
