| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/7/2013 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/7/2013 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/7/2013 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/6/2013 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/6/2013 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/6/2013 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/3/2013 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/3/2013 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/3/2013 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/2/2013 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/2/2013 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/2/2013 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/27/2013 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/27/2013 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/27/2013 |