| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/16/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/16/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/16/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/13/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/13/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/13/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/12/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/12/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/12/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/11/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/11/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/11/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/10/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/10/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/10/2012 |