Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2003 | 441 | Metric tons, tungsten content | NA |
| 2004 | 403 | Metric tons, tungsten content | -8.62% |
| 2005 | 531 | Metric tons, tungsten content | 31.76% |
| 2006 | 868 | Metric tons, tungsten content | 63.47% |
| 2007 | 1107 | Metric tons, tungsten content | 27.53% |
| 2008 | 1148 | Metric tons, tungsten content | 3.70% |
| 2009 | 1023 | Metric tons, tungsten content | -10.89% |
| 2010 | 1204 | Metric tons, tungsten content | 17.69% |
| 2011 | 1124 | Metric tons, tungsten content | -6.64% |
| 2012 | 1247 | Metric tons, tungsten content | 10.94% |
| 2013 | 1253 | Metric tons, tungsten content | 0.48% |
