| Company | Timeline | Status | |
| Richardsons Limited Director • Sales/marketing Manager | 1 Nov 1993←4 Years→30 Jun 1998 | Active | |
| Y.H. Properties Ltd Director • Company Director | 17 Jun 1993←14 Years→19 Nov 2007 | Dissolved | |
| Yh Training Services Limited Director • Company Director | 16 Jun 1992←15 Years→19 Nov 2007 | Dissolved | |
