Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2003 | 13 | Metric tons, tungsten content | NA |
| 2004 | 8 | Metric tons, tungsten content | -38.46% |
| 2005 | 94 | Metric tons, tungsten content | 1,075.00% |
| 2006 | 238 | Metric tons, tungsten content | 153.19% |
| 2007 | 144 | Metric tons, tungsten content | -39.50% |
| 2008 | 194 | Metric tons, tungsten content | 34.72% |
| 2009 | 110 | Metric tons, tungsten content | -43.30% |
| 2010 | 100 | Metric tons, tungsten content | -9.09% |
| 2011 | 165 | Metric tons, tungsten content | 65.00% |
| 2012 | 190 | Metric tons, tungsten content | 15.15% |
| 2013 | 50 | Metric tons, tungsten content | -73.68% |
