| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 6/1/2021 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/31/2021 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/31/2021 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/31/2021 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/28/2021 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/28/2021 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/28/2021 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/27/2021 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/27/2021 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/27/2021 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/26/2021 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/26/2021 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/26/2021 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/25/2021 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/25/2021 |