NAICS 331313: Alumina Refining and Primary Aluminum Production
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.
- NAICS code
- 331313
- Title
- Alumina Refining and Primary Aluminum Production
- Sector
- 31-33 Manufacturing
- Subsector
- 331 Primary Metal Manufacturing
- Industry group
- 3313 Alumina and Aluminum Production and Processing
- NAICS industry
- 33131 Alumina and Aluminum Production and Processing
- SBA size standard
- 1,300 employees
- Open bids on BidRover
- 0
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Browse all open bidsFrequently asked questions
What is NAICS code 331313?
NAICS 331313 is "Alumina Refining and Primary Aluminum Production" in the 2022 North American Industry Classification System, in sector 31-33 (Manufacturing). 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.
What is the SBA size standard for NAICS 331313?
A business is small under NAICS 331313 at or below 1,300 employees, including affiliates (13 CFR 121.201). Confirm the standard named in each solicitation.
How many government bids are open under NAICS 331313?
No open bid in BidRover cites NAICS 331313 right now. Many state and local notices do not list a NAICS code, so a keyword alert for this work catches more of them.
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Title and definition: U.S. Census Bureau, North American Industry Classification System (NAICS), 2022. Size standard: U.S. Small Business Administration, Small Business Size Standards, 13 CFR 121.201 (eCFR text as of Oct 21, 2026). Bid counts come from official public sources and refresh every hour; confirm the code and size standard in each solicitation.