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North American Industry Classification System 2022International Standard Industrial Classification of All Economic Activities, Rev.4

NAICS 2022 331313 to ISIC Rev 4

Crosswalk mapping from NAICS 2022 331313 "Alumina Refining and Primary Aluminum Production" to ISIC Rev 4. 1 official equivalence.

NAICS 2022 331313 in ISIC Rev 4

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About NAICS 2022 331313

331313 Alumina Refining and Primary Aluminum ProductionThis 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--