| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/29/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/29/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/29/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/28/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/28/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/28/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/25/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/25/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/25/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/23/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/23/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/23/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/22/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/22/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/22/2012 |