NAICS Code 21232 - Sand, Gravel, Clay, and Ceramic and Refractory Minerals Mining and Quarrying
Industry SectorMining, Quarrying, and Oil and Gas Extraction
This industry comprises (1) establishments primarily engaged in developing the mine site and/or mining, quarrying, dredging for sand and gravel, or mining clay (e.g., china clay, paper clay and slip clay), and (2) preparation plants primarily engaged in beneficiating (e.g., washing, screening, and grinding) sand and gravel, clay, and ceramic and refractory minerals.
- Calcining, dead burning, or otherwise processing (i.e., beyond basic preparation) clay or refractory minerals: classified in NAICS Code - 32799 - All Other Nonmetallic Mineral Product Manufacturing.
- Shaping, molding, baking, burning, or hardening nonclay ceramics, clay and nonclay refractories, and structural clay products: classified in NAICS Code - 32712 - Clay Building Material and RefractoriesManufacturing.
- Shaping, molding, glazing, and firing pottery, ceramics, and plumbing fixtures: classified in NAICS Code - 32711 - Pottery, Ceramics, and Plumbing Fixture Manufacturing..
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