| Company | Timeline | Status | |
| Hydro Plant Limited Director • Secretary | 31 Dec 1991←34 Years→Current | Active | |
Hydro Construction Limited Director • Secretary | 29 Sep 1991←25 Years→16 May 2017 | Dissolved | |
| Hydro Plant Limited Director • Unreported | 1 Jan 1970←56 Years→Current | Active | |
