| · | [Tungsten]Ferrotungsten in EU Market | 1/11/2012 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 1/11/2012 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 1/11/2012 |
| · | [Tungsten]Ferrotungsten in USA Market | 1/9/2012 |
| · | [Tungsten]Ferrotungsten in EU Market | 1/9/2012 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 1/9/2012 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 1/9/2012 |
| · | [Tungsten]Ferrotungsten in USA Market | 1/6/2012 |
| · | [Tungsten]Ferrotungsten in EU Market | 1/6/2012 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 1/6/2012 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 1/6/2012 |
| · | [Tungsten]Ferrotungsten in EU Market | 12/30/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 12/30/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 12/30/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 12/28/2011 |