NAICS 3 Digit Subsector Code 327

Subsector 327

NAICS Subsector Code 327 – Nonmetallic Mineral Product Manufacturing

Definition of NAICS 3 Digit Subsector Code 327: The Nonmetallic Mineral Product Manufacturing subsector transforms mined or quarried nonmetallic minerals, such as sand, gravel, stone, clay, and refractory materials, into products for intermediate or final consumption. Processes used include grinding, mixing, cutting, shaping, and honing. Heat often is used in the process and chemicals are frequently mixed to change the composition, purity, and chemical properties for the intended product. For example, glass is produced by heating silica sand to the melting point (sometimes combined with cullet or recycled glass) and then drawn, floated, or blow molded to the desired shape or thickness. Refractory materials are heated and then formed into bricks or other shapes for use in industrial applications.

The Nonmetallic Mineral Product Manufacturing subsector includes establishments that manufacture products, such as bricks, refractories, ceramic products, and glass and glass products, such as plate glass and containers. Also included are cement and concrete products, lime, gypsum and other nonmetallic mineral products including abrasive products, ceramic plumbing fixtures, statuary, cut stone products, and mineral wool. The products are used in a wide range of activities from construction and heavy and light manufacturing to articles for personal use.

Mining, beneficiating, and manufacturing activities often occur in a single location. Separate receipts will be collected for these activities whenever possible. When receipts cannot be broken out between mining and manufacturing, establishments that mine or quarry nonmetallic minerals, beneficiate the nonmetallic minerals and further process the nonmetallic minerals into a more finished manufactured product are classified based on the primary activity of the establishment. A mine that manufactures a small amount of finished products will be classified in Sector 21, Mining, Quarrying, and Oil and Gas Extraction. An establishment that mines whose primary output is a more finished manufactured product will be classified in the Manufacturing Sector.

Excluded from the Nonmetallic Mineral Product Manufacturing subsector are establishments that primarily beneficiate mined nonmetallic minerals. Beneficiation is the process whereby the extracted material is reduced to particles that can be separated into mineral and waste, the former suitable for further processing or direct use. Beneficiation establishments are included in Sector 21, Mining, Quarrying, and Oil and Gas Extraction.

Three Digit Subsector Breakdown for the North American Industry Classification System

NAICS codes are broken down by digit. The broadest description starts with the 2 digit sector codes. The 3 digit subsector codes are more specific, then the 4 digit industry group, 5 digit industry, and the most specific is the 6 digit NAICS code. If NAICS Subsector 327 does not describe the industry of the business in question, then select the largest applicable code below. From there, follow the progression of smaller digits to the larger digits in order to obtain the most specific 6 digit classification.

  • Sector 31-33: Manufacturing
    • Subsector 327: Nonmetallic Mineral Product Manufacturing
      • Industry Group 3271: Clay Product and Refractory Manufacturing
        • Industry 32711: Pottery, Ceramics, and Plumbing Fixture Manufacturing
          • 6 Digit Code(s) NAICS 327110: Pottery, Ceramics, and Plumbing Fixture Manufacturing
        • Industry 32712: Clay Building Material and Refractories Manufacturing
          • 6 Digit Code(s) NAICS 327120: Clay Building Material and Refractories Manufacturing
      • Industry Group 3272: Glass and Glass Product Manufacturing
        • Industry 32721: Glass and Glass Product Manufacturing
          • 6 Digit Code(s) NAICS 327211: Flat Glass Manufacturing
          • 6 Digit Code(s) NAICS 327212: Other Pressed and Blown Glass and Glassware Manufacturing
          • 6 Digit Code(s) NAICS 327213: Glass Container Manufacturing
          • 6 Digit Code(s) NAICS 327215: Glass Product Manufacturing Made of Purchased Glass
      • Industry Group 3273: Cement and Concrete Product Manufacturing
        • Industry 32731: Cement Manufacturing
          • 6 Digit Code(s) NAICS 327310: Cement Manufacturing
        • Industry 32732: Ready-Mix Concrete Manufacturing
          • 6 Digit Code(s) NAICS 327320: Ready-Mix Concrete Manufacturing
        • Industry 32733: Concrete Pipe, Brick, and Block Manufacturing
          • 6 Digit Code(s) NAICS 327331: Concrete Block and Brick Manufacturing
          • 6 Digit Code(s) NAICS 327332: Concrete Pipe Manufacturing
      • Industry Group 3273: Cement and Concrete Product Manufacturing
        • Industry 32739: Other Concrete Product Manufacturing
          • 6 Digit Code(s) NAICS 327390: Other Concrete Product Manufacturing
      • Industry Group 3274: Lime and Gypsum Product Manufacturing
        • Industry 32741: Lime Manufacturing
          • 6 Digit Code(s) NAICS 327410: Lime Manufacturing
      • Industry Group 3274: Lime and Gypsum Product Manufacturing
        • Industry 32742: Gypsum Product Manufacturing
          • 6 Digit Code(s) NAICS 327420: Gypsum Product Manufacturing
      • Industry Group 3279: Other Nonmetallic Mineral Product Manufacturing
        • Industry 32791: Abrasive Product Manufacturing
          • 6 Digit Code(s) NAICS 327910: Abrasive Product Manufacturing
        • Industry 32799: All Other Nonmetallic Mineral Product Manufacturing
          • 6 Digit Code(s) NAICS 327991: Cut Stone and Stone Product Manufacturing
          • 6 Digit Code(s) NAICS 327992: Ground or Treated Mineral and Earth Manufacturing
          • 6 Digit Code(s) NAICS 327993: Mineral Wool Manufacturing
          • 6 Digit Code(s) NAICS 327999: All Other Miscellaneous Nonmetallic Mineral Product Manufacturing

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NAICS 3 Digit Subsector Code 327