| Company | Timeline | Status | |
| Polytank Holdings Limited Director • Director | 1 Oct 2014←11 Years→Current | Active | |
| Polytank Limited Director • Company Director | 3 Apr 2013←12 Years→Current | Active | |
| Armatank Limited Director • Director | 26 Jun 2003←22 Years→Current | Active | |
| Plumbing Equipment Limited Director • Company Director | 30 Apr 1991←34 Years→Current | Active | |
| Plumbing Equipment Limited Secretary • Unreported | 30 Apr 1991←6 Years→9 Oct 1997 | Active | |
| Polytank Group Limited Director • Company Director | 31 Mar 1991←34 Years→Current | Active | |
| Polytank Group Limited Secretary • Unreported | 31 Mar 1991←6 Years→30 Sep 1997 | Active | |
