| Company | Timeline | Status | |
| Spembly Cryosurgery Limited Secretary • Unreported | 9 Jun 1999←10 Months→5 Apr 2000 | Active | |
| Spembly Medical Limited Secretary • Unreported | 9 Jun 1999←10 Months→5 Apr 2000 | Active | |
| Integra Neurosciences Limited Secretary • Unreported | 9 Jun 1999←10 Months→5 Apr 2000 | Active | |
| Springvale Management Company Limited Secretary • Unreported | 21 Sep 1993←3 Years→18 Jul 1997 | Active | |
