| · | [Tungsten]Ferrotungsten in USA Market | 4/15/2013 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/15/2013 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/15/2013 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/15/2013 |
| · | [Tungsten]Ferrotungsten in USA Market | 4/12/2013 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/12/2013 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/12/2013 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/12/2013 |
| · | [Tungsten]Ferrotungsten in USA Market | 4/10/2013 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/10/2013 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/10/2013 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/10/2013 |
| · | [Tungsten]Ferrotungsten in USA Market | 4/8/2013 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/8/2013 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/8/2013 |