| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/8/2013 |
| · | [Tungsten]Ferrotungsten in USA Market | 4/6/2013 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/6/2013 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/6/2013 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/6/2013 |
| · | [Tungsten]Ferrotungsten in USA Market | 4/3/2013 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/3/2013 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/3/2013 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/3/2013 |
| · | [Tungsten]Ferrotungsten in USA Market | 4/1/2013 |
| · | [Tungsten]Ferrotungsten in EU Market | 4/1/2013 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 4/1/2013 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 4/1/2013 |
| · | [Tungsten]Ferrotungsten in USA Market | 3/29/2013 |
| · | [Tungsten]Ferrotungsten in EU Market | 3/29/2013 |