| · | [Tungsten]Ferrotungsten in EU Market | 4/24/2013 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/24/2013 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/24/2013 |
| · | [Tungsten]Ferrotungsten in USA Market | 4/22/2013 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/22/2013 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/22/2013 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/22/2013 |
| · | [Tungsten]Ferrotungsten in USA Market | 4/19/2013 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/19/2013 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/19/2013 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/19/2013 |
| · | [Tungsten]Ferrotungsten in USA Market | 4/17/2013 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/17/2013 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/17/2013 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/17/2013 |