| Company | Timeline | Status | |
| Bayham Holdings Limited Director • Company Director | 27 Feb 1996←7 Years→28 Feb 2003 | Active | |
| Bayham Holdings Limited Secretary • Company Director | 27 Feb 1996←10 Years→1 Dec 2006 | Active | |
| Prestech Limited Director • Company Director | 18 Apr 1995←7 Years→28 Feb 2003 | Dissolved | |
| Prestech Limited Secretary • Company Director | 18 Apr 1995←11 Years→1 Dec 2006 | Dissolved | |
| Ranger Instrument Company Limited(The) Director • Director/secretary | 1 Feb 1992←11 Years→28 Feb 2003 | Active | |
| Bayham Limited Director • Company Director/secretary | 31 Oct 1991←11 Years→28 Feb 2003 | Active | |
| Bayham Limited Secretary • Unreported | 31 Oct 1991←15 Years→1 Dec 2006 | Active | |
