Variant of North American Industry Classification System (NAICS) 2022 Version 1.0 for Industrial production (based on the 2008 International Recommendations for Industrial Statistics)

• 1 - Industrial production
• 21 - Mining, quarrying, and oil and gas extraction
• 212 - Mining and quarrying (except oil and gas)
• 2123 - Non-metallic mineral mining and quarrying

21232 - Sand, gravel, clay, and ceramic and refractory minerals mining and quarrying

This industry comprises establishments primarily engaged in operating sand and gravel pits, including dredging for sand and gravel; mining or quarrying shale; and mining, beneficiating or otherwise preparing kaolin or ball clay, including china clay, paper and slip clays, and other clays and refractory minerals.