| · | [Tungsten]Ammonium Paratungstate in USA Market | 6/1/2012 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 6/1/2012 |
| · | [Tungsten]Ferrotungsten in USA Market | 5/30/2012 |
| · | [Tungsten]Ferrotungsten in EU Market | 5/30/2012 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 5/30/2012 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 5/30/2012 |
| · | [Tungsten]Ferrotungsten in USA Market | 5/28/2012 |
| · | [Tungsten]Ferrotungsten in EU Market | 5/28/2012 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 5/28/2012 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 5/28/2012 |
| · | [Tungsten]Ferrotungsten in USA Market | 5/25/2012 |
| · | [Tungsten]Ferrotungsten in EU Market | 5/25/2012 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 5/25/2012 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 5/25/2012 |
| · | [Tungsten]Ferrotungsten in USA Market | 5/23/2012 |