212210 — Iron Ore Mining
Description
This industry comprises establishments primarily engaged in (1) developing mine sites, mining, and/or beneficiating (i.e., preparing) iron ores and manganiferous ores valued chiefly for their iron content and/or (2) producing sinter iron ore (except iron ore produced in iron and steel mills) and other iron ore agglomerates.
Overview Facts
| NAICS Code | 212210 |
|---|---|
| Industry Title | Iron Ore Mining |
| SBA Size Standard | 1,400 employees |
| IRS PBA Code | 212200 (rolled-up match) |
| Sectors Hierarchy | Sector 21 → 212 → 2122 |
| 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 1011 - Iron Ores (via SIC1987:1011→NAICS1997:21221→2002:212210→2007:212210→2012:212210→2017:212210→2022:212210)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 212210:
- Sector 21 Directory Hub — List of related industries in the Mining, Quarrying, and Oil and Gas Extraction 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 2122
Frequently Asked Questions (FAQ)
Is 212210 a valid 2022 NAICS code?
NAICS 212210 is 'Iron Ore Mining', a 2022 U.S. national industry under Sector 21 (Mining, Quarrying, and Oil and Gas Extraction); the SBA small-business size standard is 1,400 employees.
What is the SBA size standard for NAICS 212210?
The SBA small business size standard for NAICS 212210 is 1,400 employees (based on employees).
What is the legacy SIC code mapping for 212210?
NAICS code 212210 maps to the legacy 1987 SIC codes: 1011 - Iron Ores.