Kazakhstan, Canada, and Australia are the top three uranium producing mines and together account for 63% of world uranium production.
Uranium from mining is used primarily as fuel for nuclear power plants. As of 2008, known uranium ore resources that can be mined at about current costs are estimated to be sufficient to produce fuel for about a century, based on current consumption rates.
Uranium ores are normally processed by grinding the materials to a particle size then treating the ore to extract the uranium by chemical leaching. The milling process commonly yields dry powder-form material consisting of natural uranium, "yellowcake," which is sold on the uranium market as U3O8.