212112: Bituminous Coal Underground Mining
This U.S. industry comprises establishments primarily engaged in one or
more of the following: (1) the underground mining of bituminous coal;
(2) developing bituminous coal underground mine sites; and (3) the
underground mining and beneficiating bituminous coal (e.g, cleaning,
washing, screening, and sizing coal).
The data published with NAICS code 212112 include the following
1222 Bituminous coal underground mining