NAICS Code 331410 — Nonferrous Metal (except Aluminum) Smelting and Refining

National Industry in the official 2022 North American Industry Classification System (U.S. Census Bureau). It is the only national industry under 33141 (Nonferrous Metal (except Aluminum) Smelting and Refining).

Code	331410
Title	Nonferrous Metal (except Aluminum) Smelting and Refining
Level	National Industry (6-digit)
Edition	NAICS 2022 edition
SBA size standard	1,000 employees

Official definition (2022 NAICS)

This industry comprises establishments primarily engaged in (1) smelting ores into nonferrous metals and/or (2) the primary refining of nonferrous metals (except aluminum) by electrolytic methods or other processes.

Is a business under 331410 "small"?

Under the SBA size standards (13 CFR 121.201, effective March 17, 2023), a business classified in NAICS 331410 qualifies as a small business if it does not exceed 1,000 employees. Small-business status determines eligibility for federal set-aside contracts, SAM.gov certifications and SBA loan programs — employee count is averaged over the latest 24 months.

Where 331410 sits in the hierarchy

Level	Code	Title
Sector	31-33	Manufacturing
Subsector	331	Primary Metal Manufacturing
Industry Group	3314	Nonferrous Metal (except Aluminum) Production and Processing
NAICS Industry	33141	Nonferrous Metal (except Aluminum) Smelting and Refining
National Industry	331410	Nonferrous Metal (except Aluminum) Smelting and Refining

No direct SIC mapping is shown for this code: it was introduced or redefined after the official 1987 SIC ↔ 2002 NAICS concordance. Use the crosswalk tool to explore related legacy codes.

Data: official 2022 NAICS structure, descriptions and Census concordances, U.S. Census Bureau — U.S. government works in the public domain (17 U.S.C. §105). Suggested reference, not an official determination.