| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/13/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/12/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/9/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/8/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/7/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/6/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/5/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/2/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 3/1/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 2/29/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 2/28/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 2/27/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 2/24/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 2/23/2012 |
| · | [Tungsten]Market Price of Tungsten Concentrates in China | 2/22/2012 |