| · | [Tungsten]Ammonium Paratungstate in USA Market | 2/4/2009 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 2/4/2009 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 1/8/2009 |
| · | [Tungsten]Ammonium Paratungstate in EU Market | 6/24/2008 |
| · | [Tungsten]Ammonium Paratungstate in USA Market | 6/20/2008 |