| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/25/2017 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/25/2017 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/24/2017 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/24/2017 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/23/2017 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/23/2017 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/22/2017 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/22/2017 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/19/2017 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/19/2017 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/18/2017 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/18/2017 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/17/2017 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/17/2017 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/16/2017 |