| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ANGLO SAXONY MINING LIMITED | 08917992 | 03/03/2014 | Dissolved |
| MET TRADING LIMITED | 07385849 | 23/09/2010 | Silver |
| STANNUM RESOURCES LIMITED | 07394114 | 01/10/2010 | Gold |
| TRELIVER ENERGY SERVICES LIMITED | 09332797 | 28/11/2014 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AFRICAN EAGLE RESOURCES PLC | 03912362 | 14/08/2013 | 08/05/2014 | Dissolved |
| APOLLO MANAGEMENT INTERNATIONAL LLP | OC316197 | 19/05/2008 | 12/07/2010 | Silver |
| CORNWALL TIN LIMITED | 09392858 | 16/01/2015 | 16/04/2015 | One Red Flag |
| FIRST TIN PLC | 07931518 | 01/02/2012 | 24/03/2022 | Silver |
| GALENA ASSET MANAGEMENT LIMITED | 04657028 | 07/02/2003 | 05/12/2007 | Dissolved |
| INGENIOUS FILM PARTNERS 2 LLP | OC314069 | 17/03/2006 | 06/04/2011 | Bronze |
| NORTH RIVER RESOURCES PLC | 05875525 | 19/09/2013 | 23/03/2018 | Dissolved |
| SOUTH CROFTY LIMITED | 06242518 | 13/08/2007 | 31/12/2009 | Amber |