| 1947-11 |
The company was founded as Sakamoto Yoshio Shoten. Commenced sales of chemical products. Sales of chemical products started. |
| 1951-05 |
The company was incorporated, and the company name was renamed as Sakamoto Yakuhin Kogyo Co., Ltd. |
| 1953-04 |
Morinomiya Factory was constructed. Manufacture of glycerin started. |
| 1961-04 |
Higashi Osaka Factory was constructed. Color processing of synthetic resins started. |
| 1964-05 |
Kyobashi Factory was constructed. The factory had been relocated from Morinomiya to expand glycerin production. |
| 1967-06 |
Daito Factory was constructed. The factory was relocated from Higashi Osaka City, and a new building was constructed to enhance color processing capabilities of synthetic resins. The company became one of the first in Japan to commercialize the production of synthetic glycerin. |
| 1970-10 |
The factory was relocated from Kyobashi to the new Senboku Factory in Senboku seafront industrial district in Izumiotsu City to boost the production of glycerin and chemical products. |
| 1978-05 |
The Tokyo Branch was established within Dai-Ichi Tekko Building in the Marunouchi District of Chiyoda-ku, Tokyo. |
| 1985-10 |
An R&D was established on a lot adjoining Senboku Factory. |
| 1990-02 |
Operations at SAKAMOTO ORIENT CHEMICALS CORPORATION started with the aim of producing glycerin in the Philippines. |
| 1993-09 |
Ako Factory was constructed. A 44,298 m2 industrial site in Shimizu Industrial Park was acquired in Ako City, Hyogo Prefecture, and Phase 1 of construction was completed. In September 1994, Phase 2 of construction was completed. |
| 2000-04 |
Production of glycerin in the Philippines at SAKAMOTO ORIENT CHEMICALS CORPORATION started. |
| 2002-05 |
Production of brominated epoxy-based flame retardants was started at SAKAMOTO ORIENT CHEMICALS CORPORATION in the Philippines. |
| 2015-01 |
The company acquired a 7,804 m2 site for an R&D in Ayumino, Izumi City, Osaka, consolidating research facilities into a new R&D. |
| 2022-02 |
New glycerin production facility started operations at Senboku Factory. |
