Tosoh Corp.
History
| Year | Detail |
|---|---|
| 1935 | Toyo Soda Kogyo Co. Ltd. was established. |
| 1942 | Bromine production begins. |
| 1947 | Started production of Glauber's salt and hydrochloric acid. |
| 1953 | Cement production begins. |
| 1964 | New York representative office opened. |
| 1967 | Baking soda production begins. |
| 1971 | Yokkaichi Toso was established. |
| 1973 | Iran-Japan Petrochemicals (IJPC) established. |
| 1975 | Merged with Tekkosha. |
| 1981 | Started production of paste PVC. |
| 1986 | Started production of high silica zeolite. |
| 1990 | Merger with Shin Daikyowa Petrochemicals. |
| 1996 | Taiyo PVC is established. |
| 2014 | Merged with Nippon Polyurethane Industry Co. Ltd. |
| 2019 | Developed aldehyde scavenger. |
