NAICS Code Description

327992 - Ground or Treated Mineral and Earth Manufacturing

Top Businesses by Annual Sales for 327992 – Click for Complete Profiles:

Imerys Filtration Minerals IncKamin LLC
Isp Global Technologies IncSpecialty Granules LLC
Metal Services LLCSuperior Graphite Co
Arcosa Materials IncDicalite Management Group LLC
Mill Services CorpPremier Magnesia LLC

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.


  • Establishments primarily engaged in crushing, grinding, pulverizing, washing, screening, sizing, or otherwise beneficiating mined clays, ceramics and refractory, and other miscellaneous nonmetallic minerals are classified in Industry Group 2123, Nonmetallic Mineral Mining and Quarrying.
Index Entries for 327992
327992327992327992327992Barite processing beyond beneficiation
327992327992327992327992Barium processing beyond beneficiation
327992327992327992327992Blast furnace slag processing
327992327992327992327992Desiccants, activated clay, manufacturing
327992327992327992327992Diatomaceous earth processing beyond beneficiation
327992327992327992327992Feldspar processing beyond beneficiation
327992327992327992327992Flint processing beyond beneficiation
327992327992327992327992Fuller's earth processing beyond beneficiating
327992327992327992327992Graphite, natural (e.g., ground, pulverized, refined, blended), manufacturing
327992327992327992327992Kaolin, processing beyond beneficiation
327992327992327992327992Lead, black (i.e., natural graphite), ground, refined, or blended, manufacturing
327992327992327992327992Magnesite, crude (e.g., calcined, dead-burned, ground), manufacturing
327992327992327992327992Mica processing beyond beneficiation
327992327992327992327992Perlite aggregates manufacturing
327992327992327992327992Perlite, expanded, manufacturing
327992327992327992327992Pumice (except abrasives) processing beyond beneficiation
327992327992327992327992Pyrophyllite processing beyond beneficiation
327992327992327992327992Shale, expanded, manufacturing
327992327992327992327992Silicon, ultra high purity, manufacturing
327992Soapstone processing beyond beneficiation
327992327992327992327992Talc processing beyond beneficiation
327992327992327992327992Vermiculite, exfoliated, manufacturing