SIC 1021 — Copper Ores
SIC 1021 is 'Copper Ores', a 4-digit Standard Industrial Classification (SIC) code under Major Group 10: Metal Mining (Division B: Mining); it maps to modern 2022 NAICS code(s): 212230 (Copper, Nickel, Lead, and Zinc Mining).
Description & Classification
SIC code 1021 representing 'Copper Ores' is an industry category in the Standard Industrial Classification (SIC) system under U.S. OSHA and Federal procurement registers.
Modern NAICS Crosswalk
Trace the modern equivalent classifications in the 2022 North American Industry Classification System (NAICS) database:
- NAICS 212230 - Copper, Nickel, Lead, and Zinc Mining (via SIC1987:1021→NAICS1997:212234→2002:212234→2007:212234→2012:212234→2017:212230→2022:212230)
Classification Details
| SIC Code | 1021 |
|---|---|
| Industry Title | Copper Ores |
| Division | Division B: Mining |
| Major Group | Major Group 10: Metal Mining |
| Source / Verified | US Census 1987 SIC Concordance / 2026-06-28 |
Related Resources & Compliance Guides
Further regulatory reference links for legacy SIC code 1021:
- SIC Codes Complete Compliance Guide — Detailed history and active legal applications of the SIC classification framework.
- Why Legacy SIC Codes Persist Guide — How credit systems and the SEC still rely on SIC metadata.
- SIC ↔ NAICS Crosswalk Tool — Trace industrial code conversions dynamically.
- SIC Major Group 10 Hub — View other legacy industries in this business division.
Related Industries in Major Group 10
Frequently Asked Questions (FAQ)
What industry does SIC code 1021 represent?
SIC 1021 is 'Copper Ores', a 4-digit Standard Industrial Classification (SIC) code under Major Group 10: Metal Mining (Division B: Mining); it maps to modern 2022 NAICS code(s): 212230 (Copper, Nickel, Lead, and Zinc Mining).
What is the modern 2022 NAICS mapping for SIC 1021?
SIC code 1021 maps to modern NAICS codes: 212230 - Copper, Nickel, Lead, and Zinc Mining.