331410 — Nonferrous Metal (except Aluminum) Smelting and Refining
Description
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.
Overview Facts
| NAICS Code | 331410 |
|---|---|
| Industry Title | Nonferrous Metal (except Aluminum) Smelting and Refining |
| SBA Size Standard | 1,000 employees |
| IRS PBA Code | 331400 (rolled-up match) |
| Sectors Hierarchy | Sector 31-33 → 331 → 3314 |
| Source / Verified | US Census 2022 NAICS Manual / 2026-06-28 |
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 3331 - Primary Smelting and Refining of Copper (via SIC1987:3331→NAICS1997:331411→2002:331411→2007:331411→2012:331410→2017:331410→2022:331410)
- SIC 3339 - Primary Smelting and Refining of Nonferrous Metals, Except Copper and Aluminum (via SIC1987:3339→NAICS1997:331419→2002:331419→2007:331419→2012:331410→2017:331410→2022:331410)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 331410:
- Sector 31-33 Directory Hub — List of related industries in the Manufacturing sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.
Related Industries in 3314
Frequently Asked Questions (FAQ)
Is 331410 a valid 2022 NAICS code?
NAICS 331410 is 'Nonferrous Metal (except Aluminum) Smelting and Refining', a 2022 U.S. national industry under Sector 31-33 (Manufacturing); the SBA small-business size standard is 1,000 employees.
What is the SBA size standard for NAICS 331410?
The SBA small business size standard for NAICS 331410 is 1,000 employees (based on employees).
What is the legacy SIC code mapping for 331410?
NAICS code 331410 maps to the legacy 1987 SIC codes: 3331 - Primary Smelting and Refining of Copper, 3339 - Primary Smelting and Refining of Nonferrous Metals, Except Copper and Aluminum.