Skip to main contentPsst! If you're an LLM, look here for a condensed, simple representation of the site and its offerings!

LiveFree Webinar — Wednesday, September 2 at 2:00 PM EDT

Register Free →
← Back to NAICS Codes
NAICS Code· 212323

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

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. Illustrative Examples: Bentonite mining and/or beneficiating Fuller's earth mining and/or beneficiating Common clay mining and/or beneficiating Kaolin mining and/or beneficiating Feldspar mining and/or beneficiating Ball clay mining and/or beneficiating Fire clay mining and/or beneficiating Shale (except oil shale) mining and/or beneficiating Cross-References. Establishments primarily engaged in--Show more

NAICS 212323 – Kaolin, Clay, and Ceramic and Refractory Minerals Mining encompasses the extraction and initial processing of non-metallic minerals critical to advanced industrial and defense applications. This sector includes the mining of kaolin, ball clay, fire clay, stoneware clay, and other ceramic and refractory-grade minerals used in high-temperature ceramics, insulation materials, crucibles, furnace linings, and advanced ceramic components.

1
Active Contracts
-100.0%
YoY Growth

Industry Spending Overview

Federal obligations, top contractors and agencies, and related industry codes for NAICS 212323.

AI Industry Description

NAICS 212323 – Kaolin, Clay, and Ceramic and Refractory Minerals Mining encompasses the extraction and initial processing of non-metallic minerals critical to advanced industrial and defense applications. This sector includes the mining of kaolin, ball clay, fire clay, stoneware clay, and other cera...

NAICS 212323 – Kaolin, Clay, and Ceramic and Refractory Minerals Mining encompasses the extraction and initial processing of non-metallic minerals critical to advanced industrial and defense applications. This sector includes the mining of kaolin, ball clay, fire clay, stoneware clay, and other ceramic and refractory-grade minerals used in high-temperature ceramics, insulation materials, crucibles, furnace linings, and advanced ceramic components. These materials are essential in aerospace propulsion systems, nuclear reactor components, military-grade armor, and electronics manufacturing. While not a direct procurement category like IT or logistics, this NAICS underpins critical supply chains for defense, energy, and scientific infrastructure, serving as a foundational input for downstream manufacturers and government contractors producing high-performance materials. No contractor data is available for this NAICS code, indicating limited direct federal contracting activity. Companies operating in this space are typically specialized mining firms, industrial mineral processors, or vertically integrated manufacturers that supply raw or semi-processed materials rather than contracting directly with the government. Most engagement occurs indirectly through Tier 2 or Tier 3 supplier relationships with primes in aerospace, defense, and energy sectors. No agency data is available, suggesting that federal demand is not captured through direct procurement but is instead embedded in broader contracts for advanced materials, thermal protection systems, or nuclear components. Agencies such as the Department of Defense, Department of Energy, and NASA likely drive latent demand through programs requiring refractory ceramics, but spending is funneled through downstream contractors. The competitive landscape is concentrated among a small number of mineral processors with specialized mining permits and processing capabilities. Opportunities for contractors lie in securing long-term supply agreements with primes or qualifying as approved sources for critical mineral inputs. Market trends indicate growing interest in domestic supply chain resilience for strategic minerals, creating potential for small businesses with niche extraction or purification technologies to enter federal supply networks.

Competition

How many companies historically bid on federal awards in NAICS 212323, from bidder counts reported on USAspending.

Too few awards in NAICS 212323 report bidder counts (4 of 4) to summarize competition. The broader industry family below gives the closest honest picture.

How this code compares up the NAICS hierarchy. Parent cohorts pool every code under their prefix, so they are the steadier baseline when a 6-digit sample is thin.

Industry FamilyCompetitionMedian BiddersSingle-BidBidder MixReported Awards
212323This Code
Kaolin, Clay, and Ceramic and Refractory Minerals Mining
Not enough reported data
4100% of 4
21232NAICS Industry
Moderate Competition329%
9,58591% of 10,528
2123Industry Group
Nonmetallic Mineral Mining and Quarrying
Moderate Competition332%
20,22590% of 22,469
212Subsector
Moderate Competition332%
21,34090% of 23,706
21Sector
Mining, Quarrying, and Oil and Gas Extraction
Fewer Bidders236%
35,82787% of 41,337

Bidder counts reported on past federal awards in this NAICS (USAspending). An open opportunity has no bidders yet, so this is the historical norm for similar work, not a fact about this solicitation. Not all awards report bidder counts, and fewer bidders often means incumbent-held work rather than an easier win. Federal reporting of bidder counts fell from ~96% of awards (FY2016) to ~30% (FY2018 onward); the chart shows shares of reported awards, and washed-out stretches mark years with fewer than 30 of them.

Related NAICS Codes

Industries similar to Kaolin, Clay, and Ceramic and Refractory Minerals Mining, by shared sector, subsector, and industry group.

Explore contracts across multiple NAICS codes Browse all NAICS Codes

Ready to Win 212323 Contracts?

Transform opportunities in Kaolin, Clay, and Ceramic and Refractory Minerals Mining into winning contracts

Advanced search and filtering for NAICS 212323 contracts and opportunities

AI-powered contract matching based on your business capabilities and past performance

Real-time market intelligence, historical award data, and competitive analysis

Automated alerts when new opportunities are posted in your industry classification

Miguel
Hillary
Keith Deutsch
Christine

Join 650+ contractors already using CLEATUS

Dotted
NAICS 212323 FAQ

Frequently Asked Questions

NAICS code 212323 covers Kaolin, Clay, and Ceramic and Refractory Minerals Mining. 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. Illustrative Examples: Bentonite mining and/or beneficiating Fuller's earth mining and/or beneficiating Common clay mining and/or beneficiating Kaolin mining and/or beneficiating Feldspar mining and/or beneficiating Ball clay mining and/or beneficiating Fire clay mining and/or beneficiating Shale (except oil shale) mining and/or beneficiating Cross-References. Establishments primarily engaged in--

Recently Posted in Kaolin, Clay, and Ceramic and Refractory Minerals Mining

NAICS: 212323
New
Federal
Request for Information Commercial Clay Source for New Orleans to Venice (NOV), Louisiana (LA) Projects Hurricane and Storm Damage Risk Reduction System
Solicitation # W912EQ26N3401
The U.S. Army Corps of Engineers is conducting market research through a Request for Information (RFI) to identify commercially available clay material sources to support the New Orleans to Venice (NOV), Louisiana Hurricane and Storm Damage Risk Reduction System (HSDRRS). The project requires approximately 5,000,000 cubic yards of clay, with construction contracts anticipated to be awarded between the fourth quarter of Fiscal Year 2027 and the fourth quarter of Fiscal Year 2030. The overall project is scheduled for completion by the end of 2035. This RFI is for information and planning purposes only and does not constitute a formal solicitation or a guarantee of contract award. Interested firms must submit a comprehensive package that includes their business size, socioeconomic status, and a Statement of Capability. Submissions must strictly adhere to the 14 mandatory requirements outlined in Appendix A, which cover regulatory, environmental, and technical specifications. Key requirements include providing a signed Right of Entry, topographic and site layout maps, wetland determinations, coastal zone management permits, and cultural resource reports. Additionally, potential sources must provide geotechnical reports stamped by a licensed professional engineer, confirming that the clay meets specific soil classification standards (CL or CH) and adheres to strict limits regarding organic content, sand content, and salinity. All technical documentation and environmental assessments must be current, typically updated within the last 6 to 12 months. Responses must be submitted via the DoD SAFE portal to the designated point of contact no later than 11:00 A.M. on August 31, 2026.
Department Of Defense

POSTED

5 days ago

DEADLINE

in 2 days
View Details
NAICS: 212323
Closed
SLED
RFB-758-2700000023-2 | Golf Course Sand
Solicitation # RFB 758 2700000023
The Kentucky Department of Parks is seeking bids for the supply of specialized golf course sand under solicitation RFB-758-2700000023-2, with proposals due by July 29, 2026. The contract requires delivery of multiple quantities of kiln-dried sand types, including Short Mountain 70/30 and Arms Select Topdressing Sand, totaling approximately 590 tons across ten line items. All sand must meet stringent technical specifications, such as a particle size distribution of 4–6% retained on the #18 sieve, a minimum permeability rate of 37 inches per hour, and a penetrometer reading exceeding 2.0 kg/cm², with independent laboratory reports submitted to verify compliance. Bidders may propose equal or equivalent products under Section 8, provided they demonstrate equivalence through descriptive literature and meet or exceed all essential criteria. Deliveries must be completed within 14 days of order receipt under F.O.B. Destination, Freight Prepaid terms, with failure to meet this deadline incurring a 1% daily deduction from the invoice. Evaluation for award will be conducted using a trade-off approach where price is the sole numerically scored factor at 100 points, while delivery capability and sand quality are binary pass/fail thresholds. Offers that fail to meet either delivery or quality requirements will be disqualified regardless of price competitiveness. The solicitation requires strict adherence to Kentucky-specific regulations, including the submission of notarized affidavits for resident or qualified bidder status, potential 15% pricing preferences for eligible entities, and full compliance with state laws regarding AI disclosure, insurance (minimum $1 million liability with AM Best B+ rating), boycott prohibitions, lobbying restrictions, and nondiscrimination obligations under KRS 45.560–45.640. Contractors must also disclose any prior violations of tax, wage, or workplace safety laws and prohibit the use of Commonwealth data to train AI systems. Proposals must be submitted electronically through the Kentucky Vendor Self Service portal by the deadline, with all inquiries due by July 21, 2026. No formal FAR clauses are applied; instead, state procurement language governs contract terms, including provisions prohibiting non-conforming terms, requiring vendor consent for post-award additions, and allowing cancellation with 30 days’ notice. There is no contract value specified, as pricing will be determined by submitted bids, and no electronic invoicing systems like
Dept of Parks - Purchasing

POSTED

about 1 month ago

CLOSED

about 1 month ago
View Details

Win Contracts in Kaolin, Clay, and Ceramic and Refractory Minerals Mining

Get AI-powered intelligence on NAICS 212323 procurement

Real-time contract opportunities for NAICS 212323 (Kaolin, Clay, and Ceramic and Refractory Minerals Mining)

AI-powered matching based on your business capabilities and past performance

Competitive analysis of contractors winning awards in this industry

Automated alerts when new opportunities are posted

Miguel
Hillary
Keith Deutsch
Christine

Join 650+ contractors already using CLEATUS