NAICS 327999 Quarterly Industry Report
All Other Miscellaneous Nonmetallic Mineral Product Manufacturing
Comprehensive industry research for valuation professionals, business owners, buyers, and lenders
NAICS Code: 327999Sector: 32Updated: Q1 2026
About This Report
This Fair Market Value industry report for NAICS 327999 draws on data from the U.S. Census Bureau[5] economic profiles, Bureau of Labor Statistics[6] employment surveys, and SBA size standard publications[7]. Our research team evaluates the diverse product segments within this catch-all classification to provide valuation context across construction, industrial, and specialty mineral product operations. Updated quarterly, each data point is sourced to its originating government or institutional database.
Industry Snapshot
Key metrics for the all other miscellaneous nonmetallic mineral product manufacturing industry.
Industry Definition & Overview
All Other Miscellaneous Nonmetallic Mineral Product Manufacturing (NAICS 327999) encompasses establishments primarily engaged in manufacturing nonmetallic mineral products not classified in any other specific code within Subsector 327. This residual category captures a diverse range of products including dry mix concrete, mica products, synthetic stones, stucco and stucco products, graphite products, asbestos products, and various specialty mineral-based items.
The industry serves construction, industrial, electronics, and specialty markets. Dry mix concrete and mortar products represent a visible consumer-facing segment, while graphite electrodes, mica sheets, and specialty mineral composites serve industrial and technical applications. According to the U.S. Census Bureau[5], about 261 establishments operated in this industry with approximately 12,255 employees as of the most recent economic census.
Because this code functions as a catch-all classification, establishments within it may have little in common beyond their mineral raw material base. Production processes range from simple dry blending and packaging of concrete repair products to precision machining of graphite components for electrical and metallurgical applications. Market dynamics vary sharply across product segments, with construction-oriented products following building cycle patterns while industrial mineral products track manufacturing output and technology sector demand. The small establishment count relative to other manufacturing industries reflects the niche and specialized nature of most product segments within this classification.
What's Included in This Industry
- Dry mix concrete and mortar manufacturing
- Mica product manufacturing and processing
- Synthetic stone and cultured marble production
- Stucco and stucco product manufacturing
- Graphite product manufacturing for industrial use
- Asbestos product manufacturing (remaining permitted uses)
- Mineral-based fireproofing product manufacturing
- Engineered stone slab and surface production
- Specialty mineral composite manufacturing
- Statuary and art goods from nonmetallic minerals
NAICS Classification Hierarchy
| Level | Description | Code |
|---|---|---|
| Subsector | Nonmetallic Mineral Product Manufacturing | 327 |
| Industry Group | Other Nonmetallic Mineral Product Manufacturing | 3279 |
| NAICS Industry | All Other Nonmetallic Mineral Product Manufacturing | 32799 |
| National Industry | All Other Miscellaneous Nonmetallic Mineral Product Manufacturing | 327999 |
Related NAICS Codes
| Code | Description | Relationship |
|---|---|---|
| 327910 | Abrasive Product Manufacturing | Abrasive product manufacturing shares the same industry group and processes nonmetallic minerals into finished industrial products through similar thermal and mechanical methods |
| 327992 | Ground or Treated Mineral and Earth Manufacturing | Ground or treated mineral manufacturing processes minerals through calcination and surface treatment, which overlaps with some thermal processing operations in this code |
| 327991 | Cut Stone and Stone Product Manufacturing | Cut stone manufacturing processes natural stone into building products, while this code covers manufactured stone and synthetic mineral products |
| 327993 | Mineral Wool Manufacturing | Mineral wool manufacturing produces fibrous insulation from melted minerals, representing a specific product type excluded from this residual category |
| 327320 | Ready-Mix Concrete Manufacturing | Ready-mix concrete manufacturing produces wet concrete for delivery, while this code includes dry mix concrete products sold in bags and bulk containers |
| 212390 | Other Nonmetallic Mineral Mining and Quarrying | Other nonmetallic mineral mining extracts the raw mica, graphite, and specialty minerals that manufacturers in this code process into finished products |
Geographic Concentration
Top states by share of national establishments.
| # | State | % Est. | Total Est. |
|---|---|---|---|
| 1 | Texas | 12.8% | 51 |
| 2 | California | 9.5% | 38 |
| 3 | Florida | 6.8% | 27 |
| 4 | Ohio | 5.5% | 22 |
| 5 | Pennsylvania | 5.0% | 20 |
| 6 | Georgia | 4.0% | 16 |
| 7 | Michigan | 3.3% | 13 |
| 8 | New York | 3.0% | 12 |
| 9 | Utah | 2.8% | 11 |
| 10 | Indiana | 2.5% | 10 |
% Of Establishments
0%
13%
Source: County Business Patterns, U.S. Census Bureau[3]
SBA Lending Summary
24
Total SBA Loans
$29.5M
Total Loan Volume
$1.2M
Average Loan Size
12 yrs
Average Loan Term
8.45%
Average Interest Rate
256
Jobs Supported
Source: SBA 7(a) Program Data, U.S. Small Business Administration — FY 2025[4]
Key Insight: The SBA[7] classifies this industry under NAICS 327999 with a size standard of 750 employees. Industry diverse product mix within this code means firm sizes vary widely, from small dry mix concrete packagers to larger engineered stone manufacturers. Most establishments operate with modest workforces, making them eligible for SBA lending programs[8] and federal small business contracting preferences. SBA financing helps smaller mineral product manufacturers invest in mixing, forming, and packaging equipment. Eligible businesses can access SBA 7(a) loans[9] for working capital, equipment, and acquisition financing, while 504 loans[10] support major fixed-asset purchases including real estate and heavy machinery.
Top SBA Lenders
| # | Lender | Loans | Volume | Avg Loan |
|---|---|---|---|---|
| 1 | Republic Bank & Trust Company | 16 | $19.3M | $1.2M |
| 2 | U.S. Bank, National Association | 8 | $10.2M | $1.3M |
Frequently Asked Questions
Common questions about this industry.
What types of businesses are classified under NAICS 327999?
NAICS 327999 covers manufacturers of dry mix concrete and mortar, mica products, synthetic and cultured stone, stucco products, graphite components, mineral-based fireproofing, engineered stone surfaces, and other nonmetallic mineral products not classified elsewhere. Per the U.S. Census Bureau[5], about 261 establishments operate in this industry.
How is NAICS 327999 structured within the broader classification?
NAICS 327999 is the residual code within Industry Group 3279 (Other Nonmetallic Mineral Product Manufacturing), Subsector 327 (Nonmetallic Mineral Product Manufacturing), and Sector 31-33 (Manufacturing). It captures all nonmetallic mineral products not classified under the more specific codes for abrasive products (327910), cut stone (327991), ground minerals (327992), or mineral wool (327993).
What is the SBA size standard for NAICS 327999?
The SBA[7] sets the size standard at 750 employees for this industry. Businesses with fewer than 750 employees qualify as small businesses for federal contracting preferences and SBA-guaranteed loan programs.
Which NAICS codes are most closely related to 327999?
Within the same industry group, 327910 (abrasive products), 327991 (cut stone), 327992 (ground minerals), and 327993 (mineral wool) share mineral processing characteristics. Ready-mix concrete (327320) relates to the dry mix concrete segment. Per NAICS reference sources, this code serves as the catch-all for products that do not fit more specific classifications.
What industries interact most with miscellaneous nonmetallic mineral product manufacturers?
Construction markets consume dry mix products, stucco, and synthetic stone. Iron and steel mills (331110) purchase graphite electrodes for electric arc furnaces. Building material wholesalers (423390) distribute construction-oriented products. Per Census Bureau economic data[5], fabricated metal product manufacturers (332999) also use refractory minerals and graphite in heat treatment applications.
What activities does NAICS 327999 specifically include?
Activities include manufacturing dry mix concrete and mortar, producing mica sheets and fabricated mica products, making synthetic and cultured stone surfaces, manufacturing stucco products, machining graphite electrodes and components, producing mineral-based fireproofing materials, and making statuary and art goods from nonmetallic minerals. According to NAICS references, the code covers any nonmetallic mineral product not assigned to a more specific classification.
Can manufacturers in this industry access SBA loans?
Yes. Manufacturers under NAICS 327999 with fewer than 750 employees qualify for SBA loan programs[8] including 7(a) loans for working capital and equipment, 504 loans for production facilities and real estate, and microloans for smaller investments. These programs help specialty mineral product firms invest in mixing, forming, and packaging equipment.
Where are miscellaneous nonmetallic mineral product manufacturers concentrated?
Geographic distribution varies by product segment. Dry mix concrete manufacturers locate near major construction markets in populous states. Graphite product manufacturers cluster near steel-producing regions in the Midwest and Southeast. Mica processing operations locate near mining regions in North Carolina, South Dakota, and Georgia. Synthetic stone and cultured marble producers distribute broadly to serve residential and commercial construction markets nationwide.
Sources & References
Government datasets and editorial sources used in this report.
- [1]U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages bls.gov
- [2]U.S. Census Bureau, Economic Census census.gov
- [3]U.S. Census Bureau, County Business Patterns census.gov
- [4]U.S. Small Business Administration, SBA 7(a) Loan Program Data data.sba.gov
- [5]U.S. Census Bureau data.census.gov
- [6]Bureau of Labor Statistics bls.gov
- [7]SBA size standard publications sba.gov
- [8]SBA lending programs sba.gov
- [9]SBA 7(a) loans sba.gov
- [10]504 loans sba.gov
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