| Company | Timeline | Status | |
Servo Motion Company Limited Director • Director | 22 Jul 2010←8 Years→2 Oct 2018 | Dissolved | |
| Goodwin Electronics Limited Secretary • Engineering Consultant | 3 Oct 2007←10 Years→31 Mar 2018 | Active | |
| Amtri Veritas Limited Director • Engineer | 17 Mar 2004←8 Months→15 Nov 2004 | Active | |
| Goodwin Electronics Limited Director • Unreported | 31 Mar 2003←22 Years→Current | Active | |
