| · | [Tungsten]Market Price of Ferrotungsten70% in China | 10/17/2019 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 10/17/2019 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 10/16/2019 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 10/16/2019 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 10/15/2019 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 10/15/2019 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 10/14/2019 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 10/14/2019 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 10/12/2019 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 10/12/2019 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 10/11/2019 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 10/11/2019 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/1/2018 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 3/1/2018 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 3/1/2018 |