| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/8/2020 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/7/2020 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/7/2020 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/7/2020 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/6/2020 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/6/2020 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/6/2020 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/30/2020 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/30/2020 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/30/2020 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/29/2020 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/29/2020 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/29/2020 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/28/2020 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/28/2020 |