| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 7/1/2020 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 6/30/2020 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 6/30/2020 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 6/30/2020 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 6/29/2020 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 6/29/2020 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 6/29/2020 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 6/28/2020 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 6/28/2020 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 6/28/2020 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 6/24/2020 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 6/24/2020 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 6/24/2020 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 6/23/2020 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 6/23/2020 |