All Other Miscellaneous Nonmetallic Mineral Product Manufacturing
Manufacturing nonmetallic mineral products (except pottery, ceramics, and plumbing fixtures; clay building materials and refractories; glass and glass products; cement; ready-mix concrete; concrete products; lime; gypsum products; abrasive products; cut stone and stone products; ground and treated minerals and earth; and mineral wool).
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What is SBA Size Standard?
The maximum number of employees a business can have to qualify as a "small business" for federal contracting and SBA loan programs.
What's Included
- ✓Dry mix concrete manufacturing
- ✓Mica products manufacturing
- ✓Manmade and engineered proppants (e.g., resin-
- ✓coated sand, ceramic materials) manufacturing
- ✓Stucco and stucco products manufacturing
- ✓Synthetic stones, for gem stones and industrial use,
- ✓manufacturing
- ✓218
- ✓NORTH AMERICAN INDUSTRY CLASSIFICATION SYSTEM
- ✓T—Canadian, Mexican, and United States industries are comparable.
- ✓census.gov/naics
Example Companies
- ●CoorsTek- Technical ceramics
- ●Kyocera- Advanced ceramics
- ●Morgan Advanced Materials- Specialty materials
This Code is NOT For...
NAICS 327999 does not cover the following activities. Use the correct code instead:
Manufacturing pottery, ceramics, and plumbing fixtures
Manufacturing clay building materials and refractories
Manufacturing glass and glass products
Manufacturing cement
Mixing and delivering ready-mix concrete
Manufacturing concrete pipe, brick, and block
+ 7 more exclusions for this code
Frequently Asked Questions
Yes. Most businesses operate under several NAICS codes. Your primary code should reflect your main source of revenue. You can list secondary codes for other business activities when registering with government agencies or applying for contracts.
Choose the NAICS code that represents your largest revenue source as your primary code. You can add secondary codes for other activities. For example, a restaurant that also offers catering would use Full-Service Restaurants as the primary code and Caterers as a secondary code.
NAICS codes do not directly determine your tax obligations. However, certain tax credits, deductions, and industry-specific regulations may reference NAICS codes to determine eligibility. Your actual tax liability depends on your business structure and activities, not your classification code.
No. The NAICS code on your EIN application is for statistical purposes only. You can update it if your business activities change. The IRS uses this information for economic analysis, not for determining your tax treatment.
You can update your NAICS code when filing your next business tax return or by contacting the IRS. For government contracts, update your code in SAM.gov. There is no penalty for changing codes as your business evolves or if you selected the wrong code initially.