331313 - Alumina Refining and Primary Aluminum Production

When it comes to the backbone of the aluminum industry, NAICS code 331313 stands out as a crucial identifier within the manufacturing sector. This code is essential for businesses engaged in turning raw bauxite into alumina and subsequently producing primary aluminum. Understanding this code benefits manufacturers, suppliers, and government contractors by clarifying industry classifications and helping identify opportunities.

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What is NAICS Code 331313?

NAICS code 331313 refers to the Alumina Refining and Primary Aluminum Production industry. This industry encompasses establishments primarily involved in:

• Refining alumina from bauxite ore
• Smelting alumina to produce primary aluminum

The process starts with bauxite ore, which is processed into alumina (aluminum oxide), a critical intermediate material used in aluminum production. The alumina is then smelted to produce primary aluminum, the raw metal used to manufacture a vast array of aluminum products.

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Sector and Industry Activities

Sector: Manufacturing

NAICS 331313 belongs to the broader manufacturing sector, specifically focusing on the aluminum value chain.

Typical Business Activities

Companies classified under this code typically engage in:

• Alumina refining plants that process bauxite into alumina
• Primary aluminum smelting facilities transforming alumina into aluminum
• Manufacturing aluminum ingots, bars, rods, sheets, and other primary aluminum shapes
• Producing aluminum alloys using bauxite or alumina as raw materials

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Size Standards for Eligibility

For government contracts and federal small business programs, the size standard defining a "small business" under NAICS 331313 is:

• 1,300 employees or fewer

This means companies with 1,300 or fewer employees may qualify as small businesses and benefit from certain federal programs designed to support smaller manufacturers.

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Examples of Typical Businesses under NAICS 331313

Some common examples of businesses and establishments classified under this NAICS code include:

• Alumina refining plants producing aluminum oxide from raw bauxite
• Primary aluminum smelting and production companies
• Aluminum production companies manufacturing ingots, rods, sheets, and extrusions from primary aluminum
• Metal manufacturing facilities specializing in aluminum alloys made from alumina or bauxite

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Detailed Code Activity Breakdown

Activities & Products	Description
Alumina refining	Processing bauxite to produce aluminum oxide (alumina)
Aluminum producing from alumina	Smelting alumina to produce primary aluminum
Aluminum alloys manufacturing	Creating aluminum alloys using bauxite or alumina
Aluminum ingots and primary aluminum shapes	Producing bars, ingots, rods, sheets from primary aluminum
Extrusion ingot manufacturing	Fabricating extrusion-grade ingots for shaping processes
Primary aluminum production and manufacturing	Overall production of raw aluminum metal and various shapes
Primary smelting of aluminum	Electrolytic smelting process to reduce alumina
Refining aluminum, primary	Purification processes to improve aluminum quality
Slab, primary aluminum manufacturing	Producing flat primary aluminum slabs for further processing

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Frequently Asked Questions (FAQs)

What is alumina refining?

Alumina refining is the process of extracting aluminum oxide (alumina) from bauxite ore, which is the first step in aluminum production.

How is primary aluminum produced?

Primary aluminum is produced by smelting alumina via an electrolytic reduction process to separate pure aluminum metal.

What types of businesses use NAICS code 331313?

This code applies to alumina refining plants, primary aluminum smelters, and manufacturers producing aluminum ingots, bars, sheets, and alloys from primary aluminum.

What is the typical employee size for businesses under this code?

Small businesses under NAICS 331313 are classified as those with 1,300 or fewer employees.

Why is NAICS 331313 important for government contracting?

Understanding this code helps businesses identify contract opportunities related to aluminum producing and alumina refining industries within federal procurement.

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Conclusion

NAICS code 331313 encompasses the vital processes of alumina refining and primary aluminum production, which serve as the foundation of the aluminum manufacturing industry. From raw bauxite to aluminum ingots and alloys, this classification helps define manufacturing operations and supports business identification for government contracting and industry analysis.

Whether you own an alumina refining plant or a primary aluminum smelting facility, understanding NAICS 331313 ensures that your business is accurately classified, helping you leverage opportunities and align with sector standards.

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Keywords: NAICS code 331313, alumina refining, primary aluminum production, aluminum manufacturing, alumina, bauxite processing, aluminum smelting, aluminum alloys, aluminum ingots, manufacturing sector, small business size standards.