| Company | Timeline | Status | |
| CPF Commercial Limited Director • Director | 28 Nov 2014←10 Years→Current | Active | |
| Merchants Transport Limited Director • Director | 19 Dec 2007←17 Years→Current | Active | |
| Merchants Transport Limited Secretary • Unreported | 19 Dec 2007←17 Years→Current | Active | |
| Stressline Engineering Limited Director • Unreported | 29 Jun 2005←20 Years→Current | Active | |
| Stressline Engineering Limited Secretary • Director | 29 Jun 2005←20 Years→Current | Active | |
| Stressline Holdings Limited Director • Unreported | 1 Jan 1998←27 Years→Current | Active | |
| Stressline (Patents) Limited Director • Unreported | 1 Jan 1997←28 Years→Current | Active | |
| Stressline Limited Director • Company Director | 1 Jan 1997←28 Years→Current | Active | |
| John W.Hartley,Limited Director • Unreported | 1 Jan 1997←28 Years→Current | Active | |
