| · | [Tungsten]Ferrotungsten in EU Market | 5/23/2012 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 5/23/2012 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 5/23/2012 |
| · | [Tungsten]Ferrotungsten in USA Market | 5/21/2012 |
| · | [Tungsten]Ferrotungsten in EU Market | 5/21/2012 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 5/21/2012 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 5/21/2012 |
| · | [Tungsten]Ferrotungsten in USA Market | 5/18/2012 |
| · | [Tungsten]Ferrotungsten in EU Market | 5/18/2012 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 5/18/2012 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 5/18/2012 |
| · | [Tungsten]Ferrotungsten in USA Market | 5/16/2012 |
| · | [Tungsten]Ferrotungsten in EU Market | 5/16/2012 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 5/16/2012 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 5/16/2012 |