| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/5/2017 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/5/2017 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/4/2017 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/4/2017 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/4/2017 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/3/2017 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/3/2017 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/3/2017 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/2/2017 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/2/2017 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/2/2017 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/28/2017 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/28/2017 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/28/2017 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/27/2017 |