| Company | Timeline | Status | |
| Penvirad Limited Director • Director | 12 Apr 1996←22 Years→1 Oct 2018 | Active | |
| Tecomak Environmental Services Limited Director • Director | 24 Jul 1995←23 Years→1 Oct 2018 | Active | |
| Tecomak Limited Director • Company Director | 14 Dec 1991←26 Years→1 Oct 2018 | Active | |
| Tecomak Limited Secretary • Unreported | 14 Dec 1991←6 Years→16 Jan 1998 | Active | |
