| Company | Timeline | Status | |
| Erith Remediation Technologies Limited Secretary • Unreported | 14 Jun 2004←18 Years→1 Aug 2022 | Active | |
| Riverside Environmental Services Limited Secretary • Unreported | 17 Dec 2002←12 Years→24 Jul 2015 | Active | |
| Erith Environmental Services Limited Secretary • Unreported | 1 Oct 2001←24 Years→Current | Active | |
