| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/28/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/28/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/28/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/27/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/27/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/27/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/26/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/26/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/26/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/25/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/25/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/25/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/24/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/24/2012 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/24/2012 |