| Company | Timeline | Status | |
| Slendertone Limited Director • Managing Director | 21 Feb 2003←22 Years→Current | Active | |
| Ultratone Bodyshapers Limited Director • Managing Director | 5 Mar 1992←33 Years→Current | Active | |
| Speed 9495 Limited Director • Managing Director | 5 Mar 1992←33 Years→Current | Active | |
| Topper International Limited Director • Managing Director | 20 Dec 1991←33 Years→Current | Active | |
| C-Scope International Holdings Limited Director • Marketing Director | 20 Dec 1991←33 Years→Current | Active | |
| Ultratone Scientific Instruments Limited Director • Managing Director | 20 Dec 1991←33 Years→Current | Active | |
| C. Scope International Limited Director • Managing Director | 20 Dec 1991←33 Years→Current | Active | |
| ORF Limited Director • Company Direcor | 25 Nov 1991←3 Months→4 Mar 1992 | Active | |
