Subsector 212 - Mining (except Oil and Gas)
212111
 Bituminous Coal and Lignite Surface Mining
212112
 Bituminous Coal Underground Mining
212113
 Anthracite Mining
212210
 Iron Ore Mining
212221
 Gold Ore Mining
212222
 Silver Ore Mining
212231
 Lead Ore and Zinc Ore Mining
212234
 Copper Ore and Nickel Ore Mining
212291
 Uranium-Radium-Vanadium Ore Mining
212299
 All Other Metal Ore Mining
212311
 Dimension Stone Mining and Quarrying
212312
 Crushed and Broken Limestone Mining and Quarrying
212313
 Crushed and Broken Granite Mining and Quarrying
212319
 Other Crushed and Broken Stone Mining and Quarrying
212321
 Constructions and Gravel Mining
212322
 Industrial Sand Mining
212324
 Kaolin and Ball Clay Mining
212325
 Clay and Ceramic and Refractory Minerals Mining
212391
 Potash, Soda, and Borate Mineral Mining
212392
 Phosphate Rock Mining
212393
 Other Chemical and Fertilizer Mineral Mining
212399
 All Other Nonmetallic Mineral Mining