| 1927-03 |
Founded in Ise City, Mie Prefecture as Ise Wokudo Factory. Began manufacturing and selling seaweed iodine, potassium chloride, etc. |
| 1927-03 |
Founded as the Ise Wotoku Factory in Ise City, Mie Prefecture |
| 1927-03-06 |
March 6, 1927 |
| 1948-03 |
Established Ise Chemical Industries Co., Ltd. as a corporate organization. |
| 1949-08 |
Moved headquarters to Chuo-ku, Tokyo. |
| 1950-06 |
Completed construction of Yatsumi Factory (now Logistics Center) in Chiba Prefecture and began iodine production from natural gas water (activated carbon method). |
| 1955-12 |
Completed construction of Taido Factory in Chiba Prefecture and began production of natural gas and iodine (activated carbon method). |
| 1959-11 |
Completed construction of Shiratori Factory in Chiba Prefecture and began production of natural gas and iodine (activated carbon method). |
| 1960-01 |
Received capital participation from Asahi Glass Co., Ltd. (now AGC Co., Ltd.) and became a subsidiary. |
| 1961-10 |
Opened Ichimono Factory in Chiba Prefecture. Established new iodine manufacturing technology (blowing-out method), completed construction of Shirako Factory, and began iodine production from natural gas using the blowing-out method. Subsequently, each factory was gradually converted to the same manufacturing method. |
| 1961-10 |
Opened the Ichinomiya Factory in Chiba Prefecture |
| 1961-10 |
Established a new iodine production technology (blowing-out method), completed construction of the Shirako Factory in Chiba Prefecture, and began iodine production using natural gas and the blowing-out method; subsequently, each factory was gradually converted to the same production method. |
| 1969-08 |
Completed construction of Hikari Factory in Chiba Prefecture and began iodine production. |
| 1970-05 |
All factories completed conversion to the blowing-out method. |
| 1975-04 |
Started production of nickel and cobalt compounds at Ichimono Factory. |
| 1975-07 |
Completed construction of Miyazaki Factory in Miyazaki Prefecture and began production of natural gas and iodine. |
| 1984-07 |
Established subsidiary Woodward Iodine Corporation in Oklahoma, USA. |
| 1990-10 |
Listed shares on the Second Section of the Tokyo Stock Exchange. |
| 1996-04 |
Obtained ISO 9002:1994 certification. |
| 2003-04 |
Obtained ISO 9001:2000 certification. |
| 2008-07 |
Completed construction of Chiba Factory in Chiba Prefecture. |
| 2009-04 |
ISO 9001:2008 certification obtained |
| 2014-10 |
Started production of natural gas and Kansui water in the Sato area of Naganami Town, Nagase District, Chiba Prefecture |
| 2017-04 |
ISO 9001:2015 certification obtained |
| 2022-04 |
Moved from the Second Section of the Tokyo Stock Exchange to the Standard Market following a review of market classifications by the Tokyo Stock Exchange |
