NAICS Code 21 Companies ... NAICS Code 212 Companies ... NAICS Code 2121 Companies ... NAICS Code 21211 Companies
This industry comprises establishments primarily engaged in one or more of the following: (1) mining bituminous coal, anthracite coal, and lignite by underground mining, auger mining, strip mining, culm bank mining, and other surface mining; (2) developing coal mine sites; and (3) beneficiating (i.e., preparing) coal (e.g., cleaning, washing, screening, and sizing).
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