325110 — Petrochemical Manufacturing
Description
This industry comprises establishments primarily engaged in (1) manufacturing acyclic (i.e., aliphatic) hydrocarbons such as ethylene, propylene, and butylene made from refined petroleum or liquid hydrocarbons and/or (2) manufacturing cyclic aromatic hydrocarbons such as benzene, toluene, styrene, xylene, ethyl benzene, and cumene made from refined petroleum or liquid hydrocarbons (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Overview Facts
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 2865 - Cyclic Organic Crudes and Intermediates and Organic Dyes and Pigments (via SIC1987:2865→NAICS1997:32511→2002:325110→2007:325110→2012:325110→2017:325110→2022:325110)
- SIC 2869 - Industrial Organic Chemicals, NEC (via SIC1987:2869→NAICS1997:32511→2002:325110→2007:325110→2012:325110→2017:325110→2022:325110)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC 3650 — Chemical and Pharmaceutical Products Manufacturing Machinery
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 325110 valid in 2022? ▾
Yes, 325110 is a valid 6-digit 2022 NAICS national industry code representing 'Petrochemical Manufacturing' under Sector 31-33 in the official classification index.
What is the SBA size standard for NAICS code 325110? ▾
The Small Business Administration (SBA) has established a small business size standard of 1,300 employees for NAICS code 325110 (Petrochemical Manufacturing), calculated based on employees.
What is the legacy SIC equivalent for NAICS 325110? ▾
According to official Census Bureau concordance tables, NAICS code 325110 (Petrochemical Manufacturing) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 2865 - Cyclic Organic Crudes and Intermediates and Organic Dyes and Pigments, 2869 - Industrial Organic Chemicals, NEC.
Related Pages & Tools
Further regulatory reference links for NAICS code 325110:
- 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.
- NAICS 325110 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Petrochemical Manufacturing).
- 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.