| Company | Timeline | Status | |
| W. Christie (Industrial) Limited Director • Company Director | 31 Dec 1988←36 Years→Current | Active | |
| W. Christie (Industrial) Limited Secretary • Unreported | 31 Dec 1988←30 Years→3 Apr 2019 | Active | |
| W. Christie (Industrial) Limited Director • Unreported | 1 Jan 1970←55 Years→3 Nov 2025 | Active | |
