| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 1/12/2009 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 1/8/2009 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 12/17/2008 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 12/10/2008 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 12/8/2008 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 8/5/2008 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 6/25/2008 |