| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/5/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 3/5/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 3/5/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/2/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 3/2/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 3/2/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/1/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 3/1/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 3/1/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 2/29/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 2/29/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 2/29/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 2/28/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 2/28/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 2/28/2012 |