| · | [Tungsten]Market Price of Tungsten Concentrates in China | 6/2/2011 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 6/2/2011 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 6/2/2011 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 6/1/2011 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 6/1/2011 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 6/1/2011 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/31/2011 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/31/2011 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/31/2011 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/30/2011 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/30/2011 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/30/2011 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/27/2011 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/27/2011 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/27/2011 |