| Company | Timeline | Status | |
WJ Groundwater International Limited Director • Engineer | 22 Apr 2016←4 Years→3 Nov 2020 | Dissolved | |
| WJ Management Limited Director • Unreported | 27 Jun 2007←18 Years→Current | Active | |
| WJ Groundwater Limited Director • Unreported | 27 Jun 2007←18 Years→Current | Active | |
