| · | [Tungsten]Ferrotungsten in EU Market | 3/21/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 3/21/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 3/21/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 3/18/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 3/18/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 3/18/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 3/18/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 3/16/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 3/16/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 3/16/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 3/16/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 3/14/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 3/14/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 3/14/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 3/14/2011 |