| Company | Timeline | Status | |
| Videoguard Limited Director • Studio Manageress | 8 Sep 1991←8 Years→1 Oct 1999 | Active | |
| Videoguard Limited Secretary • Unreported | 8 Sep 1991←8 Years→1 Oct 1999 | Active | |
| Intervideo Limited Director • Studio Manageress | 14 Jul 1991←6 Years→27 Jan 1998 | Liquidation | |
| Intervideo Limited Secretary • Unreported | 14 Jul 1991←6 Years→27 Jan 1998 | Liquidation | |
Intersound Limited Director • Company Secretary | 16 Apr 1991←3 Years→31 May 1994 | Dissolved | |
Intersound Limited Secretary • Unreported | 16 Apr 1991←3 Years→31 May 1994 | Dissolved | |
