| · | [Tungsten]Market Price of Tungsten Concentrates in China | 6/5/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 6/5/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 6/5/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 6/4/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 6/4/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 6/4/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 6/1/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 6/1/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 6/1/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/31/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/31/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/31/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/30/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/30/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/30/2012 |