NAICS Code 331313

NAICS 331313

NAICS Code 331313 – Alumina Refining and Primary Aluminum Production

Definition of NAICS Code 331313: This U.S. industry comprises establishments primarily engaged in one or more of the following:

  1. Refining alumina (i.e., aluminum oxide) generally from bauxite;
  2. Making aluminum from alumina; and/or
  3. Making aluminum from alumina and rolling, drawing, extruding, or casting the aluminum they make into primary forms. Establishments in this industry may make primary aluminum or aluminum-based alloys from alumina.
  • You can also download your own copy of the complete 2017 NAICS Classification Manual. The NAICS Manual is updated every five years. The 2017 copy will be applicable until a new edition is produced in 2022.

Cross Reference Guide for Code 331313

What codes are similar to this classification that might be a more applicable code? The cross-reference guide below displays the codes for other similar industries. Please review to find the most applicable classification.

  • Manufacturing aluminum oxide abrasives and refractories–are classified in Subsector 327, Nonmetallic Mineral Product Manufacturing; and
  • Recovering aluminum from scrap or alloying purchased aluminum–are classified in U.S. Industry NAICS 331314, Secondary Smelting and Alloying of Aluminum.

Other Index Entries for NAICS 331313

The North American Industry Classification System contains multiple index entries that are each descriptive of the same code. The bulleted list below shows all applicable index entries (Current and former) that are associated with this classification. These index entries further elaborate on the scope of applicable industries that have already been defined at the top of this page.

  • Alumina refining
  • Aluminum alloys made from bauxite or alumina producing primary aluminum and manufacturing
  • Aluminum ingot and other primary aluminum production shapes made from bauxite or alumina
  • Aluminum oxide refining
  • Aluminum producing from alumina
  • Aluminum shapes (e.g., bar, ingot, rod, sheet) made by producing primary aluminum and manufacturing
  • Extrusion ingot, primary aluminum, manufacturing
  • Ingot, primary aluminum, manufacturing
  • Primary aluminum production and manufacturing aluminum alloys
  • Primary aluminum production and manufacturing aluminum shapes (e.g., bar, ingot, rod, sheet)
  • Primary refining of aluminum
  • Primary smelting of aluminum
  • Refining aluminum, primary
  • Slab, primary aluminum, manufacturing

Suggested Insurance Conversion Table for NAICS Code 331313

Looking for an insurance classification other than the North American Industry Classification System? If a company falls within the industry defined on this page, then the class codes mentioned below may be applicable. Please note that the bulleted cross-reference guide below is not authoritative. Users should have an insurance professional review to ensure proper insurance classification.

  • NCCI WC (Varies by state): 1438NAICS 331313
  • CA WC: 1438
  • DE WC: 0402
  • PA WC: 402
  • MI WC: 1438
  • NJ WC: 1438
  • NY WC: 1438
  • WY WC: 331313
  • GL: 56920
  • SIC: 2819, 3334

Resources: Praxiom, AceGroupTDICalifornia Division of Workers Compensation, Delaware Workers Compensation Manual, Pennsylvania Workers Compensation Manual, Michigan Workers’ Compensation Placement Facility: Classification Definitions, New Jersey Workers Compensation and Employers Liability Insurance Manual, New York Workers Compensation and Employers Liability, North American Industry Classification System, Florida Underwriting Guide: Commercial General Liability Classifications,  Standard Industrial Classifications.

The suggested cross reference guide for NAICS code 331313 is based on our research using the resources cited above.

Correlating Code Breakdown for 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 (Where you are now). If the code on this page does not describe the industry of the business in question, then select the largest applicable code below. From there, follow through the progression of smaller digits to the larger digits in order to obtain the most specific 6 digit classification.

  • Sector 31-33: Manufacturing
  • Subsector 331: Primary Metal Manufacturing
  • Industry Group 3313: Alumina and Aluminum Production and Processing
  • Industry 33131: Alumina and Aluminum Production and Processing
  • 6 Digit Code(s) NAICS 331313: Alumina Refining and Primary Aluminum Production
  • 6 Digit Code(s) NAICS 331314: Secondary Smelting and Alloying of Aluminum
  • 6 Digit Code(s) NAICS 331315: Aluminum Sheet, Plate, and Foil Manufacturing
  • 6 Digit Code(s) NAICS 331318: Other Aluminum Rolling, Drawing, and Extruding
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NAICS Code 331313