| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/9/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/9/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/9/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/6/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/6/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/6/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/5/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/5/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/5/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/31/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 3/31/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 3/31/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/30/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 3/30/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 3/30/2012 |