| · | [Tungsten]Ferrotungsten in EU Market | 3/24/2010 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 3/24/2010 |
| · | [Tungsten]Ferrotungsten in EU Market | 3/22/2010 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 3/22/2010 |
| · | [Tungsten]Ferrotungsten in EU Market | 3/19/2010 |
| · | [Tungsten]Ferrotungsten in USA Market | 3/17/2010 |
| · | [Tungsten]Ferrotungsten in USA Market | 3/10/2010 |
| · | [Tungsten]Ferrotungsten in USA Market | 3/8/2010 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 3/8/2010 |
| · | [Tungsten]Ferrotungsten in USA Market | 3/5/2010 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 3/5/2010 |
| · | [Tungsten]Ferrotungsten in USA Market | 3/1/2010 |
| · | [Tungsten]Ferrotungsten in EU Market | 3/1/2010 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 3/1/2010 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 3/1/2010 |