| Company | Timeline | Status | |
| Marine Jet Power Limited Director • Accountant | 28 Oct 1996←9 Months→13 Aug 1997 | Active | |
| Marine Jet Power Limited Secretary • Accountant | 28 Oct 1996←16 Years→30 May 2013 | Active | |
| Ultra Dynamic Holdings Limited Director • Financial Director | 4 Oct 1996←10 Months→13 Aug 1997 | Active | |
| Ultra Dynamic Holdings Limited Secretary • Financial Director | 4 Oct 1996←16 Years→30 May 2013 | Active | |
Ultra Group Limited Director • Company Director & Secretary | 29 Oct 1992←4 Years→16 Nov 1996 | Dissolved | |
Ultra Group Limited Secretary • Unreported | 29 Oct 1992←4 Years→16 Nov 1996 | Dissolved | |
| Ultra Hydraulics Limited Director • Company Director | 29 Oct 1991←5 Years→16 Nov 1996 | Dissolved | |
| Ultra Hydraulics Limited Secretary • Unreported | 29 Oct 1991←5 Years→16 Nov 1996 | Dissolved | |
