| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 1/10/2011 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 1/7/2011 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 1/7/2011 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 1/7/2011 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 1/6/2011 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 1/6/2011 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 1/5/2011 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 1/5/2011 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 1/5/2011 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 1/4/2011 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 1/4/2011 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 1/4/2011 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 12/31/2010 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 12/31/2010 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 12/31/2010 |