| · | [Tungsten]Market Price of Ferrotungsten70% in China | 3/17/2011 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 3/17/2011 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/16/2011 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 3/16/2011 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 3/16/2011 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/15/2011 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 3/15/2011 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 3/15/2011 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/14/2011 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 3/14/2011 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 3/14/2011 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/11/2011 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 3/11/2011 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 3/11/2011 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/10/2011 |