| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Avala Minerals Ltd | 04246626 | 12/07/2001 | Dissolved |
| Eastmed Minerals Ltd | 05032198 | 02/02/2004 | Dissolved |
| IVESTON MINING COMPANY LIMITED | 01980519 | 10/08/1992 | Dissolved |
| Kingfisher Fuels Ltd | 02597835 | 01/09/1992 | Dissolved |
| M N Consultants Limited | 02603410 | 21/04/1991 | Dissolved |
| Middridge Mine Co Ltd | 01993059 | 10/08/1992 | Dissolved |
| Northumbria Mining Services Ltd | 00958858 | 01/09/1992 | Dissolved |
| Orbicom Carnon Ltd | 02504218 | 22/05/1991 | Dissolved |
| Orbicom Natural Resources Ltd | 02597123 | 30/04/1991 | Dissolved |
| Sacor Ltd | 02638304 | 01/09/1992 | Dissolved |
| Woody Close Drift Mine Ltd | 01811920 | 01/09/1992 | Dissolved |
| Young Group Plc | 02226511 | 08/05/1992 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CORNISH CHAMBER OF MINES AND MINERALS | 00147391 | 23/08/1991 | 31/12/1992 | Amber |
| CSM ASSOCIATES LIMITED | 02111309 | 02/12/1991 | 29/02/1992 | Dissolved |
| Carnon Holdings Ltd | 02204788 | 19/07/1991 | 12/02/1992 | Dissolved |
| HARWORTH ESTATES LIMITED | 02173536 | 10/08/1992 | 15/12/1993 | Gold |
| HARWORTH ESTATES NO 2 LIMITED | 01827325 | 10/08/1992 | 15/12/1993 | Not Trading |
| HARWORTH HAULAGE LTD | 01824798 | 10/08/1992 | 15/12/1993 | Dissolved |
| King Associates Mining Ltd | 02337745 | 01/09/1992 | 17/09/1993 | Dissolved |
| Navan Mining (U K) Ltd | SC134850 | 05/02/1997 | 12/02/2002 | Dissolved |
| Navan Mining Plc | 03986332 | 09/05/2000 | 12/02/2002 | Dissolved |
| PARKLANDS COLLIERY COMPANY LIMITED | 00798370 | 10/08/1992 | 15/12/1993 | Dissolved |
| RJB MINING (UK) LTD | 02200408 | 10/08/1992 | 15/12/1993 | Dissolved |
| Sierra Rutile Services Ltd | 02875382 | 09/12/1993 | 24/02/1994 | Dissolved |
| Sierra Rutile Services Ltd | 02875382 | 09/12/1993 | 30/09/1996 | Dissolved |
| Titanium Minerals Marketing International | FC017717 | 11/01/1994 | 30/09/1996 | Dissolved |