| Company | Timeline | Status | |
| Giga Information Group Limited Director • Chief Financial Officer | 8 Jan 1998←3 Years→20 Jul 2001 | Dissolved | |
| Xyenterprise Limited Secretary • Executive | 5 Jun 1992←2 Years 9 Months→13 Mar 1995 | Active | |
| Xyenterprise Limited Director • Executive | 16 Nov 1991←4 Years→11 Dec 1995 | Active | |
