| Company | Timeline | Status | |
| Percival Aviation Limited Director • Aviation Consultant | 12 Jul 1991←16 Years→5 Dec 2007 | Active | |
| Hanning Limited Director • Engineer | 14 May 1991←9 Years→1 Mar 2001 | Active | |
| Hanning Limited Secretary • Unreported | 14 May 1991←9 Years→1 Mar 2001 | Active | |
