| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/13/2012 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/13/2012 |
| · | [Tungsten]Ferrotungsten in USA Market | 4/11/2012 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/11/2012 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/11/2012 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/11/2012 |
| · | [Tungsten]Ferrotungsten in USA Market | 4/9/2012 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/9/2012 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/9/2012 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/9/2012 |
| · | [Tungsten]Ferrotungsten in USA Market | 4/6/2012 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/6/2012 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/6/2012 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/6/2012 |
| · | [Tungsten]Ferrotungsten in USA Market | 3/28/2012 |