Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2005 | 3000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2006 | 2932 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -2.27 % |
| 2007 | 2585 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -11.83 % |
| 2008 | 4200 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 62.48 % |
| 2009 | 3900 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -7.14 % |
