| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 3/28/2013 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/27/2013 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 3/27/2013 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 3/27/2013 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/26/2013 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 3/26/2013 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 3/26/2013 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/25/2013 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 3/25/2013 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 3/25/2013 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/22/2013 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 3/22/2013 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 3/22/2013 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/21/2013 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 3/21/2013 |