History
- September 1969
- The company was established by Hiroshi Yamaguchi (currently chairman) at 1-11 Izumi-cho Kanda, Chiyoda-ku, Tokyo.
- December 1972
- The main office relocated to Sakuma-cho, Kanda.
- April 1978
- Korea office established as an overseas office.
- August 1985
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Kanto Kasei Taipei office established as KANTO KASEI TAIWAN LTD.
- August 1989
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Kanto Kasei Singapore office established as KANTO KASEI(S) PTE LTD.
- August 1991
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Kanto Kasei HongKong office established as KANTO KASEI (H.K.) LTD.
- April 2000
- Osaka sales office established.
- February 2001
- Technical Center established for further technological development.
- September 2003
- The company awarded first prize of technology from Sony.
- November 2003
- The main office relocated to Marunouchi, Chiyoda-ku, Tokyo.
- October 2009
- The capital increased to 500 million yen.
- April 2011
- The company name changed to KANTO KASEI LTD
- September 2017
- The main office and Osaka sales office acquired ISO 9001 certification.
- April 2018
- Osaka Sales Office upgraded to Osaka Branch Office.
- September 2019
- Celebrate the 50th anniversary of the company's founding.
- February 2020
- Osaka Branch Office relocated to Imabashi, Osaka.
- Octorber 2022
- Osaka Branch Office relocated to Kitahama, Chuo-ku, Osaka.