Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2009 | 725 | Metric tons, tungsten content | NA |
| 2010 | 1150 | Metric tons, tungsten content | 58.62% |
| 2011 | 1635 | Metric tons, tungsten content | 42.17% |
| 2012 | 1050 | Metric tons, tungsten content | -35.78% |
| 2013 | 1660 | Metric tons, tungsten content | 58.10% |
