# NAICS 21232: Sand, Gravel, Clay, and Ceramic and Refractory Minerals Mining and Quarrying

No SBA size standard is recorded for NAICS 21232.

| Field | Value |
| --- | --- |
| Code | 21232 |
| Title | Sand, Gravel, Clay, and Ceramic and Refractory Minerals Mining and Quarrying |
| Level | 5 |
| Parent | 2123 |
| Size standard | - |
| Footnote | - |

## Description

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) or ceramic and refractory minerals and (2) preparation plants primarily engaged in beneficiating (e.g., washing, screening, and grinding) sand and gravel, clay, and ceramic and refractory minerals.

## Sources

- Census NAICS: https://www.census.gov/naics/
- SBA size standards: https://www.sba.gov/document/support-table-size-standards

## API and MCP

- REST: GET https://samgovapi.io/api/v1/naics/21232/size-standard?revenue_usd=...
- MCP tools: naics_lookup, size_standard_check

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