| · | [Tungsten]Export Price of Ferrotungsten80-A in China | 4/5/2012 |
| · | [Tungsten]Export Price of AmmoniumParatungstate in China | 4/5/2012 |
| · | [Tungsten]Export Price of Ferrotungsten80-A in China | 3/31/2012 |
| · | [Tungsten]Export Price of AmmoniumParatungstate in China | 3/31/2012 |
| · | [Tungsten]Export Price of Ferrotungsten80-A in China | 3/30/2012 |
| · | [Tungsten]Export Price of AmmoniumParatungstate in China | 3/30/2012 |
| · | [Tungsten]Export Price of Ferrotungsten80-A in China | 3/29/2012 |
| · | [Tungsten]Export Price of AmmoniumParatungstate in China | 3/29/2012 |
| · | [Tungsten]Export Price of Ferrotungsten80-A in China | 3/28/2012 |
| · | [Tungsten]Export Price of AmmoniumParatungstate in China | 3/28/2012 |
| · | [Tungsten]Export Price of Ferrotungsten80-A in China | 3/27/2012 |
| · | [Tungsten]Export Price of AmmoniumParatungstate in China | 3/27/2012 |
| · | [Tungsten]Export Price of Ferrotungsten80-A in China | 3/26/2012 |
| · | [Tungsten]Export Price of AmmoniumParatungstate in China | 3/26/2012 |
| · | [Tungsten]Export Price of Ferrotungsten80-A in China | 3/23/2012 |