| · | [Tungsten]Ammonium Paratungstate in EU Market | 7/4/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 7/1/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 7/1/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 7/1/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 7/1/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 6/30/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 6/30/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 6/29/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 6/29/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 6/27/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 6/27/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 6/24/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 6/24/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 6/22/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 6/22/2011 |