Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2011 | 8000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | NA |
| 2012 | 18000 | Metric tons, zinc content of concentrate and direct shipping ore, unless otherwise specified | 125.00% |
