# NAICS 327992: Ground or Treated Mineral and Earth Manufacturing

Breadcrumb: [NAICS codes](https://bidrover.com/naics) › [327992 Ground or Treated Mineral and Earth Manufacturing](https://bidrover.com/naics/327992)

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.

- NAICS code: 327992
- Title: Ground or Treated Mineral and Earth Manufacturing
- Sector: 31-33 Manufacturing
- Subsector: 327 Nonmetallic Mineral Product Manufacturing
- Industry group: 3279 Other Nonmetallic Mineral Product Manufacturing
- NAICS industry: 32799 All Other Nonmetallic Mineral Product Manufacturing
- SBA size standard: 600 employees
- Open bids on BidRover: 0

## Open bids (0)

No open bids cite this code right now.

## Frequently asked questions

### What is NAICS code 327992?

NAICS 327992 is "Ground or Treated Mineral and Earth Manufacturing" in the 2022 North American Industry Classification System, in sector 31-33 (Manufacturing). 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.

### What is the SBA size standard for NAICS 327992?

A business is small under NAICS 327992 at or below 600 employees, including affiliates (13 CFR 121.201). Confirm the standard named in each solicitation.

### How many government bids are open under NAICS 327992?

No open bid in BidRover cites NAICS 327992 right now. Many state and local notices do not list a NAICS code, so a keyword alert for this work catches more of them.

### How do I get alerts for NAICS 327992 bids?

Save an alert on this page. A free account gets new matching bids by weekly email; the Team plan ($19/mo) sends daily alerts with match scores, the buyer, source link and documents.

## Related NAICS codes

- [327991 Cut Stone and Stone Product Manufacturing](https://bidrover.com/naics/327991)
- [327993 Mineral Wool Manufacturing](https://bidrover.com/naics/327993)
- [327999 All Other Miscellaneous Nonmetallic Mineral Product Manufacturing](https://bidrover.com/naics/327999)
- [327910 Abrasive Product Manufacturing](https://bidrover.com/naics/327910)

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Code titles and definitions: U.S. Census Bureau, North American Industry Classification System (NAICS), 2022 (https://www.census.gov/naics/). Size standards: U.S. Small Business Administration, Small Business Size Standards, 13 CFR 121.201, eCFR text current as of 2026-10-21 (https://www.ecfr.gov/current/title-13/section-121.201).

BidRover lists bids from official public sources. It is not an issuing authority; confirm the NAICS code and size standard named in each solicitation.