| Company | Timeline | Status | |
| PTW-UK Limited Director • Director | 9 Oct 2008←8 Years→6 May 2017 | Active | |
| PTW-UK Limited Secretary • Unreported | 9 Oct 2008←8 Years→6 May 2017 | Active | |
| Freemantle Business Centre Management Company Limited Director • Managing Director | 18 Oct 1991←3 Years→31 Mar 1995 | Active | |
| Physics Instrument Company Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
