| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/9/2011 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/9/2011 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/9/2011 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/6/2011 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/6/2011 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/6/2011 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/5/2011 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/5/2011 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/5/2011 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/4/2011 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/4/2011 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/4/2011 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/3/2011 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/3/2011 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/3/2011 |