NAICS UNIVERSITY · Free research for insurance agents
Ground or Treated Mineral and Earth Manufacturing
NAICS 327992 · United States · 2022 edition
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.
Activities described by this code
Other activities to examine
Census classification reference
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Compare another operationInsurance operations research — draft
Establishments in this class calcine, dead-burn, or otherwise process clays, refractory minerals, barite, and miscellaneous nonmetallic minerals beyond basic beneficiation. Day-to-day operations typically involve high-temperature kilns, grinding and milling equipment, dust collection systems, and bulk material handling — producing processed mineral products sold to industrial buyers in ceramics, oil and gas, construction, and specialty manufacturing sectors.
Questions to investigate
- What specific minerals are processed — clays, barite, refractory minerals, or others — and are any regulated dusts such as silica involved?
- What high-temperature or process-critical equipment is on-site, and what does the maintenance and inspection program look like?
- What is the replacement cost of the primary processing equipment and structures?
- Has the facility had any prior environmental violations, remediation activity, or pollution-related claims?
This insurance research was generated in April 2026. It has not received a complete human review. The October 12, 2026 audit checked codes and titles only, not descriptions or coverage assertions.