| · | [Tungsten]Export Price of Ferrotungsten80-A in China | 4/8/2011 |
| · | [Tungsten]Export Price of AmmoniumParatungstate in China | 4/8/2011 |
| · | [Tungsten]Export Price of Ferrotungsten80-A in China | 4/7/2011 |
| · | [Tungsten]Export Price of AmmoniumParatungstate in China | 4/7/2011 |
| · | [Tungsten]Export Price of Ferrotungsten80-A in China | 4/6/2011 |
| · | [Tungsten]Export Price of AmmoniumParatungstate in China | 4/6/2011 |
| · | [Tungsten]Export Price of Ferrotungsten80-A in China | 4/2/2011 |
| · | [Tungsten]Export Price of AmmoniumParatungstate in China | 4/2/2011 |
| · | [Tungsten]Export Price of Ferrotungsten80-A in China | 4/1/2011 |
| · | [Tungsten]Export Price of AmmoniumParatungstate in China | 4/1/2011 |
| · | [Tungsten]Export Price of Ferrotungsten80-A in China | 3/31/2011 |
| · | [Tungsten]Export Price of AmmoniumParatungstate in China | 3/31/2011 |
| · | [Tungsten]Export Price of Ferrotungsten80-A in China | 3/30/2011 |
| · | [Tungsten]Export Price of AmmoniumParatungstate in China | 3/30/2011 |
| · | [Tungsten]Export Price of Ferrotungsten80-A in China | 3/29/2011 |