Source: United States Geological Survey (USGS) Minerals Resources Program
Note: Check source table for details and footnotes
| Year | Production | Unit of Measure | % Change |
| 2005 | 100 | Metric tons, cobalt content | NA |
| 2006 | 100 | Metric tons, cobalt content | 0.00% |
| 2007 | 115 | Metric tons, cobalt content | 15.00% |
| 2008 | 105 | Metric tons, cobalt content | -8.70% |
| 2009 | 27 | Metric tons, cobalt content | -74.29% |
| 2010 | 140 | Metric tons, cobalt content | 418.52% |
| 2011 | 500 | Metric tons, cobalt content | 257.14% |
| 2012 | 635 | Metric tons, cobalt content | 27.00% |
