| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/2/2021 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/1/2021 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/1/2021 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/1/2021 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/31/2021 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 3/31/2021 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 3/31/2021 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/30/2021 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 3/30/2021 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 3/30/2021 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/29/2021 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 3/29/2021 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 3/29/2021 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/26/2021 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 3/26/2021 |