| · | [Tungsten]Ammonium Paratungstate in EU Market | 6/11/2012 |
| · | [Tungsten]Ferrotungsten in USA Market | 6/8/2012 |
| · | [Tungsten]Ferrotungsten in EU Market | 6/8/2012 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 6/8/2012 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 6/8/2012 |
| · | [Tungsten]Ferrotungsten in USA Market | 6/6/2012 |
| · | [Tungsten]Ferrotungsten in EU Market | 6/6/2012 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 6/6/2012 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 6/6/2012 |
| · | [Tungsten]Ferrotungsten in USA Market | 6/4/2012 |
| · | [Tungsten]Ferrotungsten in EU Market | 6/4/2012 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 6/4/2012 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 6/4/2012 |
| · | [Tungsten]Ferrotungsten in USA Market | 6/1/2012 |
| · | [Tungsten]Ferrotungsten in EU Market | 6/1/2012 |