| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/13/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/13/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 4/11/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/11/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/11/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/11/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 4/8/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/8/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/8/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/8/2011 |
| · | [Tungsten]Ferrotungsten in USA Market | 4/2/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/2/2011 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/2/2011 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/2/2011 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/1/2011 |