2017 NAICS Definition

T = Canadian, Mexican, and United States industries are comparable.

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. Establishments in this industry may make primary aluminum or aluminum-based alloys from alumina.

Cross-references. Establishments primarily engaged in--

• 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 331314, Secondary Smelting and Alloying of Aluminum.

2007 NAICS		2012 NAICS		2017 NAICS		Corresponding Index Entries
331311		331313		331313		Alumina refining
331312		331313		331313		Aluminum alloys made from bauxite or alumina producing primary aluminum and manufacturing
331312		331313		331313		Aluminum ingot and other primary aluminum production shapes made from bauxite or alumina
331311		331313		331313		Aluminum oxide refining
331312		331313		331313		Aluminum producing from alumina
331312		331313		331313		Aluminum shapes (e.g., bar, ingot, rod, sheet) made by producing primary aluminum and manufacturing
331312		331313		331313		Extrusion ingot, primary aluminum, manufacturing
331312		331313		331313		Ingot, primary aluminum, manufacturing
331312		331313		331313		Primary aluminum production and manufacturing aluminum alloys
331312		331313		331313		Primary aluminum production and manufacturing aluminum shapes (e.g., bar, ingot, rod, sheet)
331312		331313		331313		Primary refining of aluminum
331312		331313		331313		Primary smelting of aluminum
331312		331313		331313		Refining aluminum, primary
331312		331313		331313		Slab, primary aluminum, manufacturing