| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/18/2021 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/17/2021 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/17/2021 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/17/2021 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/14/2021 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/14/2021 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/14/2021 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/13/2021 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/13/2021 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/13/2021 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/12/2021 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/12/2021 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/12/2021 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/11/2021 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/11/2021 |