| Company | Timeline | Status | |
| China Trading Centre Limited Director • Company Director | 31 May 2006←19 Years→Current | Liquidation | |
| Arcadia Engineering Co. Limited Director • Company Director | 31 May 2006←16 Years→17 Jan 2023 | Dissolved | |
| Machine Technology Limited Secretary • Bi Lingual Secretary | 30 Dec 1997←27 Years→Current | Active | |
| Machine Technology Limited Director • Bi Lingual Secretary | 30 Dec 1997←27 Years→Current | Active | |
| Machine Technology Limited Director • Bi-lingual Secretary | 12 Sep 1991←6 Years→29 Oct 1997 | Active | |
| Machine Technology Limited Secretary • Unreported | 12 Sep 1991←6 Years→29 Oct 1997 | Active | |
