NAICS
327992: Ground or Treated Mineral and Earth Manufacturing
This U.S. industry comprises establishments primarily engaged in
calcining, dead burning, or otherwise processing beyond beneficiation,
clays, ceramic and refractory minerals, barite, and miscellaneous
nonmetallic minerals.
The data published with NAICS code 327992 include the following
SIC industry:
3295 Minerals, ground or treated
