| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| LUZENAC MICRO MILLING LIMITED | 00929894 | 01/08/2011 | Dissolved |
| UCM GROUP LIMITED | 02720770 | 23/03/2007 | Dissolved |
| UNITEC CERAMICS LIMITED | 02765381 | 01/05/2007 | Dissolved |
| Universal Abrasives Ltd | 02765378 | 01/05/2007 | Dissolved |
| Universal Ceramic Materials Ltd | 03540289 | 01/05/2007 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CHOICEWISE LIMITED | 02904463 | 01/05/2007 | 06/09/2007 | Dissolved |
| CHOICEWISE LIMITED | 02904463 | 01/05/2007 | 30/06/2019 | Dissolved |
| ECC OVERSEAS INVESTMENTS | 00270707 | 20/05/1999 | 05/12/2001 | Strike Off |
| ECO-BOS DEVELOPMENT LIMITED | 06686237 | 02/09/2008 | 30/06/2019 | Amber |
| FIBERLEAN TECHNOLOGIES LIMITED | 10021333 | 23/02/2016 | 29/04/2016 | One Red Flag |
| IMERYS MINERALS LIMITED | 00269255 | 20/05/1999 | 02/07/2001 | Silver |
| IMERYS TALC UK HOLDING LIMITED | 01599006 | 01/08/2011 | 11/04/2019 | Silver |
| IMERYS UK LIMITED | 03674799 | 23/08/1999 | 07/01/2001 | Bronze |
| IMERYS UK LIMITED | 03674799 | 26/04/1999 | 28/02/2019 | Bronze |
| NICHE FUSED MAGNESIA LIMITED | 02765383 | 01/05/2007 | 23/09/2008 | Silver |
| RECLAYM LIMITED | 03969280 | 29/10/2010 | 16/09/2013 | Bronze |
| Universal Abrasives Ltd | 02765378 | 01/05/2007 | 06/09/2007 | Dissolved |
| Universal Ceramic Materials Ltd | 03540289 | 01/05/2007 | 06/09/2007 | Dissolved |