2022 NAICS industry group in sector 21 Mining, Quarrying, and Oil and Gas Extraction
2122 Metal Ore Mining
NAICS 2122 is the US industry code for metal ore mining. It covers establishments primarily engaged in developing mine sites or mining metallic minerals, and establishments primarily engaged in ore dressing and beneficiating (i.e., preparing) operations, such as crushing, grinding, washing, drying, sintering, concentrating, calcining, and leaching.
Official definition
This industry group comprises establishments primarily engaged in developing mine sites or mining metallic minerals, and establishments primarily engaged in ore dressing and beneficiating (i.e., preparing) operations, such as crushing, grinding, washing, drying, sintering, concentrating, calcining, and leaching. Beneficiating may be performed at mills operated in conjunction with the mines served or at mills, such as custom mills, operated separately.
Codes in 2122
Data last changed November 14, 2026. How this page is built.