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
SIC industry:

1222 Bituminous coal underground mining