Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2007 | 7364 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2008 | 1619 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -78.01% |
| 2009 | 10035 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 519.83% |
| 2010 | 9268 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -7.64% |
| 2011 | 18170 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 96.05% |
| 2012 | 19559 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 7.64% |
