NAICS 331313 - Alumina Refining and Primary Aluminum Production
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What is NAICS 331313
NAICS code 331313 covers establishments engaged in alumina refining and primary aluminum production. This sector includes facilities that refine alumina, typically derived from bauxite ore, and produce primary aluminum metal from the refined alumina. Additionally, these businesses may engage in further processing of aluminum, such as rolling, drawing, extruding, or casting the metal into primary forms. Companies operating in this sector play a crucial role in the aluminum supply chain, providing foundational materials used across multiple industries including aerospace, automotive, construction, and packaging. Government agencies contract these services to ensure a reliable supply of high-quality aluminum materials that meet specific technical and performance standards critical for defense, infrastructure, and manufacturing projects. The strategic importance of aluminum production and refining makes this NAICS code essential for understanding government sourcing needs in advanced materials.
Industry Classification for NAICS 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.
Cross-references. Establishments primarily engaged in--
Breakdown for NAICS 331313
- Includes refining alumina from bauxite and producing primary aluminum metal.
- Covers manufacturing processes such as rolling, drawing, extruding, and casting aluminum.
- Applies to establishments producing both pure aluminum and aluminum-based alloys.
- Businesses are typically capital-intensive with advanced metallurgical capabilities.
- Relevant to both material supply and downstream aluminum processing.
- Subject to environmental regulations and quality control standards.
Included Activities for NAICS 331313
- Refining alumina from bauxite ore.
- Producing primary aluminum metal from refined alumina.
- Rolling aluminum into sheets or plates.
- Drawing aluminum into wire or other shapes.
- Extruding aluminum into profiles and components.
- Casting aluminum into primary forms or alloys.
- Supplying aluminum materials for defense and infrastructure projects.
- Complying with environmental and quality certification requirements.
Business Types for NAICS 331313
- Alumina refineries
- Primary aluminum producers
- Metal rolling and extrusion companies
- Aluminum alloy manufacturers
- Industrial metal suppliers
- Specialty aluminum processing firms
Subcategories for NAICS 331313
- 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
Government Buyers for NAICS 331313
Government agencies that typically purchase alumina refining and primary aluminum production services include the Department of Defense, Department of Energy, and federal infrastructure agencies such as the General Services Administration and Department of Transportation. These agencies require aluminum for applications ranging from military vehicle manufacturing and aerospace components to energy infrastructure and public construction projects. The demand for lightweight, durable, and corrosion-resistant aluminum alloys is high in government contracts focused on national security, transportation, and sustainable energy initiatives. Additionally, agencies involved in research and development may contract with producers to obtain specialized aluminum products for prototype and advanced manufacturing purposes.
Contract Types & Procurement for NAICS 331313
Contracts in this sector commonly involve firm-fixed-price, cost-plus, and indefinite delivery/indefinite quantity (IDIQ) contract vehicles. Procurement often occurs through competitive bidding and negotiated contracts due to the technical specifications and volume requirements. Contract values can vary significantly, ranging from smaller orders for specialty aluminum alloys to multimillion-dollar contracts for bulk primary aluminum supply or integrated production services. Long-term supply agreements are also prevalent to ensure consistent material availability for large-scale government projects. Subcontracting opportunities exist for companies specializing in downstream processing such as rolling or extrusion. Compliance with environmental and quality standards is a critical factor during contract awards.
Details for NAICS 331313
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