| Company | Timeline | Status | |
| Concept Distribution Limited Director • Accountant | 1 Oct 2004←21 Years→Current | Active | |
| Concept Distribution Limited Secretary • Accountant | 1 Oct 2004←21 Years→Current | Active | |
| TDK Architectural Hardware Limited Director • Accountant | 1 Oct 2004←1 Month→25 Nov 2004 | Active | |
| TDK Architectural Hardware Limited Secretary • Accountant | 1 Oct 2004←1 Month→25 Nov 2004 | Active | |
