| Company | Timeline | Status | |
| Polysource Holdings Group Limited Director • Company Director | 22 Dec 2000←5 Years→30 Apr 2006 | Active | |
| Wells Performance Materials Limited Director • Company Director | 12 Jun 1997←8 Years→30 Apr 2006 | Active | |
| R&E Holdings Limited Director • Chairman | 10 Jun 1997←8 Years→30 Apr 2006 | Active | |
