| · | [Tungsten]Market Price of Ferrotungsten70% in China | 6/3/2009 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 6/2/2009 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/21/2009 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/20/2009 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/18/2009 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/15/2009 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/14/2009 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/13/2009 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/11/2009 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/8/2009 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/7/2009 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/6/2009 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/5/2009 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 5/4/2009 |
| · | [Tungsten]Market Price of Ferrotungsten70% in China | 4/30/2009 |