| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/15/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/15/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/15/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/14/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/14/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/14/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/11/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/11/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/11/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/10/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/10/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/10/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/9/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/9/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/9/2012 |