| · | [Tungsten]Market Price of Ferrotungsten70% in China | 10/31/2019 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 10/31/2019 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 10/30/2019 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 10/30/2019 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 10/30/2019 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 10/29/2019 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 10/29/2019 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 10/29/2019 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 10/28/2019 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 10/28/2019 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 10/28/2019 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 10/25/2019 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 10/25/2019 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 10/25/2019 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 10/24/2019 |