| Company | Timeline | Status | |
| E.D. Cannon Holdings Limited Director • Engineer | 1 Jan 1970←55 Years→Current | Active | |
| Cannon Electronics & Automation Limited Director • Engineer | 1 Jan 1970←55 Years→Current | Active | |
| E.D. Cannon Holdings Limited Director • Engineer | 1 Jan 1970←55 Years→25 Sep 2025 | Active | |
| Cannon Electronics & Automation Limited Director • Engineer | 1 Jan 1970←55 Years→25 Sep 2025 | Active | |
