NAICS Canada 331—Primary metal manufacturing

Where 331 sits

1. 31-33 Manufacturing
2. 331 Primary metal manufacturing

Contains 5 narrower codes

• 3311 Iron and steel mills and ferro-alloy manufacturing
• 3312 Steel product manufacturing from purchased steel
• 3313 Alumina and aluminum production and processing
• 3314 Non-ferrous metal (except aluminum) production and processing
• 3315 Foundries

Description

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.

What 331 excludes

• Manufacturing metal forgings or stampings (see 332 fabricated metal product manufacturing)

331 in other systems