# NAICS 212323: Kaolin, Clay, and Ceramic and Refractory Minerals Mining

The SBA size standard for NAICS 212323 is 650 employees (13 CFR 121.201).

| Field | Value |
| --- | --- |
| Code | 212323 |
| Title | Kaolin, Clay, and Ceramic and Refractory Minerals Mining |
| Level | 6 |
| Parent | 21232 |
| Size standard | 650 employees |
| Footnote | - |

## Description

This U.S. industry comprises (1) establishments primarily engaged in developing the mine site and/or mining clay (e.g., china clay, paper clay and slip clay) or ceramic and refractory minerals and (2) establishments primarily engaged in beneficiating (i.e., preparing) clay or 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/212323/size-standard?revenue_usd=...
- MCP tools: naics_lookup, size_standard_check

Independent. Not affiliated with, endorsed by or sponsored by GSA, SAM.gov or any U.S. government agency. Registering in SAM.gov is free at sam.gov.

Get a free API key: https://samgovapi.io/sign-up?ref=ai-claudebot