Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2003 | 69 | Metric tons, tungsten content | NA |
| 2004 | 90 | Metric tons, tungsten content | 30.43% |
| 2005 | 318 | Metric tons, tungsten content | 253.33% |
| 2006 | 820 | Metric tons, tungsten content | 157.86% |
| 2007 | 1534 | Metric tons, tungsten content | 87.07% |
| 2008 | 975 | Metric tons, tungsten content | -36.44% |
| 2009 | 380 | Metric tons, tungsten content | -61.03% |
| 2010 | 330 | Metric tons, tungsten content | -13.16% |
| 2011 | 520 | Metric tons, tungsten content | 57.58% |
| 2012 | 700 | Metric tons, tungsten content | 34.62% |
| 2013 | 730 | Metric tons, tungsten content | 4.29% |
