| · | [Tungsten]Ferrotungsten in USA Market | 5/27/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 5/27/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 5/27/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 5/27/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 5/25/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 5/25/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 5/25/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 5/25/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 5/23/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 5/23/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 5/23/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 5/23/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 5/20/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 5/20/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 5/20/2011 |