Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2003 | 20 | Metric tons, tungsten content | NA |
| 2006 | 50 | Metric tons, tungsten content | 150.00% |
| 2007 | 366 | Metric tons, tungsten content | 632.00% |
| 2008 | 456 | Metric tons, tungsten content | 24.59% |
| 2009 | 502 | Metric tons, tungsten content | 10.09% |
| 2010 | 571 | Metric tons, tungsten content | 13.75% |
| 2011 | 439 | Metric tons, tungsten content | -23.12% |
| 2012 | 276 | Metric tons, tungsten content | -37.13% |
| 2013 | 28 | Metric tons, tungsten content | -89.86% |
