Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2002 | 8576 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2003 | 2796 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -67.40% |
| 2004 | 231 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -91.74% |
| 2005 | 4412 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 1,809.96% |
| 2006 | 572 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -87.04% |
