Mining (except Oil and Gas)
Industries in the Mining (except Oil and Gas) subsector primarily engage in mining, mine site development, and beneficiating (i.e., preparing) metallic minerals and nonmetallic minerals, including coal. The term "mining" is used in the broad sense to include ore extraction, quarrying, and beneficiating (e.g., crushing, screening, washing, sizing, concentrating, and flotation), customarily done at the mine site.
Beneficiation is the process whereby the extracted material is reduced to particles which can be separated into mineral and waste, the former suitable for further processing or direct use. The operations that take place in beneficiation are primarily mechanical, such as grinding, washing, magnetic separation, centrifugal separation, and
so on. In contrast, manufacturing operations primarily use chemical and electrochemical processes, such as electrolysis, distillation, and so on. However some treatments, such as heat treatments, take place in both stages: the beneficiation and the manufacturing (i.e., smelting/refining) stages. The range of preparation activities varies by mineral and the purity of any given ore deposit. While some minerals, such as petroleum and natural gas, require little or no preparation, others are washed and screened, while yet others, such as gold and silver, can be transformed into bullion before leaving the mine site.
Establishments in the Mining (except Oil and Gas) subsector include those that have complete responsibility for operating mines and quarries (except oil and gas wells) and those that operate mines and quarries (except oil and gas wells) for others on a contract or fee basis. Establishments primarily engaged in providing support services, on a contract or fee basis, required for the mining and quarrying of minerals are classified in Subsector 213, Support Activities for Mining.
The immediate parent of subsector 212 is sector 21: Mining, Quarrying, and Oil and Gas Extraction
- 2121 - Coal Mining
- 21211 - Coal Mining
- 2122 - Metal Ore Mining
- 21221 - Iron Ore Mining
- 21222 - Gold Ore and Silver Ore Mining
- 21223 - Copper, Nickel, Lead, and Zinc Mining
- 21229 - Other Metal Ore Mining
- 2123 - Nonmetallic Mineral Mining and Quarrying
- 21231 - Stone Mining and Quarrying
- 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
- 21232 - Sand, Gravel, Clay, and Ceramic and Refractory Minerals Mining and Quarrying
- 212321 - Construction Sand and Gravel Mining
- 212322 - Industrial Sand Mining
- 212324 - Kaolin and Ball Clay Mining
- 212325 - Clay and Ceramic and Refractory Minerals Mining
- 21239 - Other Nonmetallic Mineral Mining and Quarrying
The NAICS editions in which this code was present are indicated below. In the event that a code was changed from the prior edition the equivalent value in that edition is provided for reference.
Standard Industrial Classification (SIC) Mappings
SIC Mappings are not available at the subsector level, a more specific code is required.
SIC mappings are available for 6 digit national industry codes and their sub-descriptions only. For detailed mappings choose the most appropriate six-digit code from the list of descendants.
Insurance Industry Mappings
Mappings are not available at the subsector level, a more specific code is required.
Insurance industry mappings are available for 6 digit national industry codes and their sub-descriptions only. For detailed mappings choose the most appropriate six-digit code from the list of descendants.