Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2009 | 1000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2010 | 10000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 900.00% |
| 2011 | 15000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 50.00% |
| 2012 | 12000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -20.00% |
