Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2006 | 6000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2007 | 20000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 233.33% |
| 2008 | 14000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -30.00% |
