| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/18/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/17/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/16/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/15/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/14/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/11/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/10/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/9/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/8/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/7/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/4/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/3/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/2/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/28/2012 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/27/2012 |