History
| 1972.Apr | Hitachi Chain, Ltd. is established in Chiyoda-ku, Tokyo. |
|---|---|
| 1986.Oct | Hitachi MAXCO, Ltd. (U.S.A.) established. |
| 1987.Apr | Established Hitachi Metals, Ltd. by merging Hitachi Chain, Ltd. and the Building Equipment Center of Hitachi Metals, Ltd. |
| 1991.Oct | Japanese name changed to Hitachi Metals Techno, Ltd |
| 1991.Dec | Listed on the Second Section of the Tokyo Stock Exchange. |
| 2016.Jan | Merged with former CK holdings and changed Corporate / Brand name to SENQCIA CORPORATION. |
| 2018.Oct | Transitioned to company-with-nomination committees． |
| 2019.May | Transferred head office to Minato-ku, Tokyo. |
| 2021.Apr | SENQCIA CHAIN CORPORATION established Chain business transferred to SENQCIA CHAIN CORPORATION |
| 2021.Nov | Sold all shares of consolidated subsidiaries SENQCIA CHAIN CORPORATION and SENQCIA MAXCO, Ltd. |
| 2022.Oct | Transition to company with an audit committee. |
