Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2003 | 96 | Metric tons, tungsten content | NA |
| 2004 | 107 | Metric tons, tungsten content | 11.46% |
| 2005 | 168 | Metric tons, tungsten content | 57.01% |
| 2006 | 197 | Metric tons, tungsten content | 17.26% |
| 2007 | 183 | Metric tons, tungsten content | -7.11% |
| 2008 | 136 | Metric tons, tungsten content | -25.68% |
| 2009 | 87 | Metric tons, tungsten content | -36.03% |
| 2010 | 163 | Metric tons, tungsten content | 87.36% |
| 2011 | 140 | Metric tons, tungsten content | -14.11% |
| 2012 | 140 | Metric tons, tungsten content | 0.00% |
| 2013 | 140 | Metric tons, tungsten content | 0.00% |
