| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/11/2010 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/11/2010 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/10/2010 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/10/2010 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/7/2010 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/6/2010 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/6/2010 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 5/4/2010 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/4/2010 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 5/4/2010 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/30/2010 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/30/2010 |
| · | [Tungsten]Market Price of AmmoniumParatungstate in China | 4/30/2010 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 4/29/2010 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/29/2010 |