| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/22/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 4/20/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/20/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/20/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/20/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 4/18/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/18/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/18/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/18/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 4/15/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/15/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/15/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/15/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 4/13/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/13/2011 |