| · | [Tungsten]Ferrotungsten in EU Market | 4/29/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/29/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/29/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/28/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 4/27/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/27/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/27/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/27/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 4/25/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/25/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/25/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/25/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 4/22/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/22/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/22/2011 |