| · | [Tungsten]Market Price of Tungsten Concentrates in China | 1/31/2018 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 1/31/2018 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 1/31/2018 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 1/30/2018 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 1/30/2018 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 1/30/2018 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 1/29/2018 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 1/29/2018 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 1/29/2018 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 1/26/2018 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 1/26/2018 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 1/26/2018 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 1/25/2018 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 1/25/2018 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 1/25/2018 |