| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| RIO TINTO IRON ORE PORTUGAL LIMITED | 07800030 | 06/10/2011 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CNA UK LIMITED | 00785896 | 24/07/2013 | 05/03/2014 | Dissolved |
| RIO TINTO ALUMINIUM HOLDINGS (UK) LIMITED | 00883375 | 27/08/2009 | 05/03/2014 | Dissolved |
| RIO TINTO AUSTRALIAN HOLDINGS LIMITED | 00464176 | 25/04/2008 | 05/03/2014 | Gold |
| RIO TINTO BAHIA HOLDINGS LIMITED | 01338672 | 19/03/2012 | 05/03/2014 | Gold |
| RIO TINTO BRAZILIAN HOLDINGS LIMITED | 04986803 | 01/07/2013 | 05/03/2014 | Dissolved |
| RIO TINTO BRAZILIAN INVESTMENTS LIMITED | 04986798 | 24/07/2013 | 05/03/2014 | Dissolved |
| RIO TINTO CHARTERS LIMITED | 05401094 | 25/04/2008 | 31/05/2014 | Dissolved |
| RIO TINTO ENERGY LIMITED | 05699397 | 25/04/2008 | 05/03/2014 | Not Trading |
| RIO TINTO FH LIMITED | 00339168 | 25/04/2008 | 05/03/2014 | Dissolved |
| RIO TINTO INVESTMENTS LIMITED | 00359652 | 01/05/2008 | 05/03/2014 | Dissolved |
| RIO TINTO IRON ORE ATLANTIC LIMITED | 05516177 | 25/04/2008 | 17/09/2013 | Amber |
| RIO TINTO IRON ORE TRADING CHINA LIMITED | 08651526 | 15/08/2013 | 10/12/2013 | Gold |
| RIO TINTO METALS LIMITED | 00147115 | 25/04/2008 | 05/03/2014 | Silver |
| RIO TINTO MINERALS DEVELOPMENT LIMITED | 00281218 | 25/04/2008 | 05/03/2014 | One Red Flag |
| RIO TINTO MINING AND EXPLORATION LIMITED | 01305702 | 25/04/2008 | 05/11/2013 | Amber |
| RIO TINTO NOMINEES LIMITED | 01181093 | 24/07/2013 | 05/03/2014 | Not Trading |
| RIO TINTO OVERSEAS HOLDINGS LIMITED | 00280423 | 25/04/2008 | 05/03/2014 | Bronze |
| RIO TINTO PENSION INVESTMENTS LIMITED | 01776943 | 24/07/2013 | 05/03/2014 | Dissolved |
| RIO TINTO SEVERO ZAPAD LIMITED | 05111539 | 25/04/2008 | 03/09/2013 | Dissolved |
| RIO TINTO SHIPPING LIMITED | 05269341 | 25/04/2008 | 31/05/2014 | Dissolved |
| RIO TINTO SULAWESI HOLDINGS LIMITED | 07451623 | 25/11/2010 | 15/09/2014 | Not Trading |
| RIO TINTO URANIUM SERVICES LIMITED | 05548486 | 25/04/2008 | 27/08/2013 | Dissolved |
| RIO TINTO VOSTOK LIMITED | 05524741 | 25/04/2008 | 05/03/2014 | Dissolved |
| RTA HOLDCO 1 LIMITED | 06386663 | 25/04/2008 | 05/03/2014 | Not Trading |
| RTA HOLDCO 2 LIMITED | 06386661 | 25/04/2008 | 05/03/2014 | Dissolved |
| RTA HOLDCO 4 LIMITED | 06404791 | 25/04/2008 | 05/03/2014 | Silver |
| RTA HOLDCO 7 LIMITED | 06454989 | 25/04/2008 | 05/03/2014 | Dissolved |
| RTA HOLDCO 8 LIMITED | 07105547 | 19/07/2010 | 05/03/2014 | Strike Off |
| RTLDS UK LIMITED | 04360048 | 24/07/2013 | 05/03/2014 | Not Trading |
| THOS W WARD LIMITED | 00081020 | 24/07/2013 | 05/03/2014 | Gold |