Variant of North American Industry Classification System (NAICS) 2022 Version 1.0 for Industrial production (based on the 2008 International Recommendations for Industrial Statistics)

• 1 - Industrial production
• 31-33 - Manufacturing
• 331 - Primary metal manufacturing
• 3313 - Alumina and aluminum production and processing

33131 - Alumina and aluminum production and processing

This industry comprises establishments primarily engaged in extracting alumina generally from bauxite ore; producing aluminum from alumina; refining aluminum by any process; and rolling, drawing, casting, extruding and alloying aluminum and aluminum-based alloy basic shapes.