| · | [Tungsten]Market Price of Ferrotungsten70% in China | 6/5/2017 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 6/5/2017 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 6/2/2017 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 6/2/2017 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 6/1/2017 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 6/1/2017 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/31/2017 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/31/2017 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/27/2017 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/27/2017 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/26/2017 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/26/2017 |
| · | [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 |