Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2002 | 6900 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2003 | 2200 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -68.12% |
| 2004 | 1300 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -40.91% |
| 2005 | 900 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -30.77% |
| 2006 | 1100 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 22.22% |
