| 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 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  | |
| Plumbing Equipment Limited Director • Unreported  | 1 Jan 1970←55 Years→Current  | Active  | |
