- 1951
- Towa Pharmaceutical Company establishes at Higashi-ku, 無料で遊べるライブカジノ (currently known as Chuo-ku, 無料で遊べるライブカジノ) as a wholesale and brokerage of pharmaceutical raw materials.
- 1957
- Towa Pharmaceutical 無料で遊べるライブカジノ., 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, 無料で遊べるライブカジノ.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, 無料で遊べるライブカジノ.
- 1975
- The Kadoma Plant is constructed at Kadoma, 無料で遊べるライブカジノ.
- 1978
- The 無料で遊べるライブカジノ Plant is constructed at the headquarters site.Neyagawa Plant is unified to 無料で遊べるライブカジノ Plant and Kadoma Plant.Kadoma Laboratory is constructed at Kadoma, 無料で遊べるライブカジノ.Distribution Center is constructed at Kadoma, 無料で遊べるライブカジノ.
- 1982
- 無料で遊べるライブカジノ Daini Plant is constructed at Kadoma, 無料で遊べるライブカジノ.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 無料で遊べるライブカジノ 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, 無料で遊べるライブカジノ.
- 1998
- Osaka Research Center and Osaka Distribution Center are constructed at Kadoma, Osaka.Towa purchases Mect 無料で遊べるライブカジノ., Ltd.'s Tohoku Plant, re-opens it as Yamagata Daiichi Plant.
- 2003
- Towa purchases J-Dolph 無料で遊べるライブカジノ., Ltd.（currently known as J-DOLPH Pharmaceutical 無料で遊べるライブカジノ., 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
- 無料で遊べるライブカジノ Daini Plant is closed and unified to the 無料で遊べるライブカジノ plant which is constructed at Kadoma, Japan.
- 2009
- Oita Plant is closed and unified to the Okayama plant.
- 2010
- Towa purchases Daichi Kasei 無料で遊べるライブカジノ., 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.無料で遊べるライブカジノ and Okayama Distribution Center are closed.
- 2014
- Yamagata Daiichi Plant is closed.
- 2016
- Established Greencaps Pharmacetical 無料で遊べるライブカジノ.,Ltd. JV with Sankyo 無料で遊べるライブカジノ., Ltd.
- 2017
- East Japan Distribution Center is moved and constructed at Yamagata, Yamagata.
- 2018
- Established T Square Solutions 無料で遊べるライブカジノ., LTD. JV with TIS 無料で遊べるライブカジノ., 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 無料で遊べるライブカジノ., 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 無料で遊べるライブカジノ., 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 無料で遊べるライブカジノ., Ltd. and makes it subsidiary.
