Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2005 | 3410 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2006 | 1100 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -67.74% |
| 2007 | 1100 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 0.00% |
| 2008 | 2200 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 100.00% |
| 2009 | 3400 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 54.55% |
| 2010 | 5000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 47.06% |
| 2011 | 4320 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | -13.60% |
| 2012 | 4500 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 4.17% |
