| · | [Tungsten]Ammonium Paratungstate in EU Market | 5/20/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 5/18/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 5/18/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 5/18/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 5/18/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 5/16/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 5/16/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 5/16/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 5/16/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 5/13/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 5/13/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 5/13/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 5/13/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 5/11/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 5/11/2011 |