Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2003 | 30 | Metric tons, tungsten content | NA |
| 2004 | 262 | Metric tons, tungsten content | 773.33% |
| 2005 | 577 | Metric tons, tungsten content | 120.23% |
| 2006 | 525 | Metric tons, tungsten content | -9.01% |
| 2007 | 537 | Metric tons, tungsten content | 2.29% |
| 2008 | 408 | Metric tons, tungsten content | -24.02% |
| 2009 | 192 | Metric tons, tungsten content | -52.94% |
| 2010 | 166 | Metric tons, tungsten content | -13.54% |
| 2011 | 244 | Metric tons, tungsten content | 46.99% |
| 2012 | 381 | Metric tons, tungsten content | 56.15% |
| 2013 | 380 | Metric tons, tungsten content | -0.26% |
