| · | [Tungsten]Ammonium Paratungstate in EU Market | 3/9/2012 |
| · | [Tungsten]Ferrotungsten in EU Market | 3/7/2012 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 3/7/2012 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 3/7/2012 |
| · | [Tungsten]Ferrotungsten in USA Market | 3/5/2012 |
| · | [Tungsten]Ferrotungsten in EU Market | 3/5/2012 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 3/5/2012 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 3/5/2012 |
| · | [Tungsten]Ferrotungsten in USA Market | 3/2/2012 |
| · | [Tungsten]Ferrotungsten in EU Market | 3/2/2012 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 3/2/2012 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 3/2/2012 |
| · | [Tungsten]Ferrotungsten in USA Market | 2/27/2012 |
| · | [Tungsten]Ferrotungsten in EU Market | 2/27/2012 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 2/27/2012 |