| · | [Tungsten]Market Price of Tungsten Concentrates in China | 1/31/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 1/31/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 1/31/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 1/30/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 1/30/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 1/30/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 1/20/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 1/20/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 1/20/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 1/19/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 1/19/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 1/19/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 1/18/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 1/18/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 1/18/2012 |