| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/11/2015 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/11/2015 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/11/2015 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/8/2015 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/8/2015 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/8/2015 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/7/2015 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/7/2015 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/7/2015 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/5/2015 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/5/2015 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/5/2015 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/4/2015 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/4/2015 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/4/2015 |