| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/23/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/23/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/23/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/20/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/20/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/20/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/19/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/19/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/19/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/18/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/18/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/18/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/17/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/17/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/17/2012 |