| · | [Tungsten]Market Price of Tungsten Concentrates in China | 6/1/2015 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 6/1/2015 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 6/1/2015 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/29/2015 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/29/2015 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/29/2015 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/28/2015 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/28/2015 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/28/2015 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/27/2015 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/27/2015 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/27/2015 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/26/2015 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/26/2015 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/26/2015 |