| Company | Timeline | Status | |
| N.H.C.A. Limited Director • Unreported | 2 Feb 2019←6 Years→Current | Active | |
| Jamestan Engineering Limited Secretary • Director | 19 Jul 2007←10 Years→20 Apr 2018 | Active | |
| Jamestan Holdings Limited Secretary • Director | 18 Jun 2007←10 Years→20 Apr 2018 | Active | |
| Jamestan Holdings Limited Director • Director | 18 Jun 2007←10 Years→20 Apr 2018 | Active | |
| Jamestan Engineering Limited Director • Director | 28 Sep 1998←19 Years→20 Apr 2018 | Active | |
| N.H.C.A. Limited Director • Engineer | 14 Dec 1996←5 Years→30 Nov 2002 | Active | |
