| · | [Tungsten]Ferrotungsten in USA Market | 5/31/2013 |
| · | [Tungsten]Ferrotungsten in EU Market | 5/31/2013 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 5/31/2013 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 5/31/2013 |
| · | [Tungsten]Ferrotungsten in USA Market | 5/29/2013 |
| · | [Tungsten]Ferrotungsten in EU Market | 5/29/2013 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 5/29/2013 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 5/29/2013 |
| · | [Tungsten]Ferrotungsten in USA Market | 5/27/2013 |
| · | [Tungsten]Ferrotungsten in EU Market | 5/27/2013 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 5/27/2013 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 5/27/2013 |
| · | [Tungsten]Ferrotungsten in USA Market | 5/24/2013 |
| · | [Tungsten]Ferrotungsten in EU Market | 5/24/2013 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 5/24/2013 |