North American Industry Classification System (NAICS) Canada 2017 Version 3.0

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331 - Primary metal manufacturing

This subsector comprises establishments primarily engaged in smelting and refining ferrous and non-ferrous metals from ore, pig or scrap in blast or electric furnaces. Metal alloys are made with the introduction of other chemical elements. The output of smelting and refining, usually in ingot form, is used in rolling and drawing operations to produce sheet, strip, bars, rods and wire, and in molten form to produce castings and other basic metal products.

North American Industry Classification System (NAICS) Canada 2017 Version 3.0 - Classification structure
Code Industry group
3311Iron and steel mills and ferro-alloy manufacturing Iron and steel mills and ferro-alloy manufacturing
3312Steel product manufacturing from purchased steel Steel product manufacturing from purchased steel
3313Alumina and aluminum production and processing Alumina and aluminum production and processing
3314Non-ferrous metal (except aluminum) production and processing Non-ferrous metal (except aluminum) production and processing
3315Foundries Foundries
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