| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/22/2013 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/22/2013 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/22/2013 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/21/2013 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/21/2013 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/21/2013 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/20/2013 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/20/2013 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/20/2013 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/17/2013 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/17/2013 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/17/2013 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/16/2013 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/16/2013 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/16/2013 |