NAICS 2022 nationalIndustry USA Verified: Census NAICS 2022 · 2026-01-01

NAICS 325110 — Petrochemical Manufacturing

Petrochemical Manufacturing

NAICS 325110 is the national industry code for petrochemical manufacturing establishments in the United States. The Small Business Administration sets a size standard of 1,300 for this classification. It forms part of the hierarchical North American Industry Classification System maintained by the Census Bureau.

SBA: 1,300 View full SBA standard

Exclusions & Cross-References

Activities classified under other official NAICS codes:

converting petrochemicals into other basic chemicals (See 325190 Other basic organic chemical manufacturing (MEX))
manufacturing acetylene (See 325120 Industrial gas manufacturing)
manufacturing plastics resins and synthetic rubber (See 325210 Resin and synthetic rubber manufacturing (CAN))
refining crude petroleum into petrochemicals (See 324110 Petroleum refineries)

Official Illustrative Examples

Primary activities officially recognized by Census Bureau / Statistics Canada:

acyclic hydrocarbons (except acetylene), made from refined petroleum or natural gas liquids aromatic cyclic hydrocarbons, made from refined petroleum or natural gas liquids benzene, made from refined petroleum or natural gas liquids butane, made from refined petroleum or natural gas liquids ethane, made from refined petroleum or natural gas liquids ethylene (ethene), made from refined petroleum or natural gas liquids hexane, made from refined petroleum or natural gas liquids paraffins (alkanes), made from refined petroleum or natural gas liquids pentane, made from refined petroleum or natural gas liquids styrene, made from refined petroleum or natural gas liquids toluene, made from refined petroleum or natural gas liquids xylene, made from refined petroleum or natural gas liquids

Complete Index of Activities (27 recognized activities) ▼

acyclic hydrocarbons (except acetylene), made from refined petroleum or natural gas liquids

aliphatic hydrocarbons (except acetylene), made from refined petroleum or natural gas liquids

aromatic cyclic hydrocarbons, made from refined petroleum or natural gas liquids

benzene, made from refined petroleum or natural gas liquids

butadiene, made from refined petroleum or natural gas liquids

butane, made from refined petroleum or natural gas liquids

butylene (butene), made from refined petroleum or natural gas liquids

cumene, made from refined petroleum or natural gas liquids

ethane, made from refined petroleum or natural gas liquids

ethylbenzene, made from refined petroleum or natural gas liquids

ethylene (ethene), made from refined petroleum or natural gas liquids

heptane, made from refined petroleum or natural gas liquids

heptene, made from refined petroleum or natural gas liquids

hexane, made from refined petroleum or natural gas liquids

isobutene, made from refined petroleum or natural gas liquids

isoprene, made from refined petroleum or natural gas liquids

naphthalene, made from refined petroleum or natural gas liquids

nonene, made from refined petroleum or natural gas liquids

olefins (alkenes), made from refined petroleum or natural gas liquids

paraffins (alkanes), made from refined petroleum or natural gas liquids

pentane, made from refined petroleum or natural gas liquids

pentene, made from refined petroleum or natural gas liquids

petrochemicals, made from refined petroleum or natural gas liquids

propylene (propene), made from refined petroleum or natural gas liquids

styrene, made from refined petroleum or natural gas liquids

toluene, made from refined petroleum or natural gas liquids

xylene, made from refined petroleum or natural gas liquids

Official data

Feature	Description
Official name	North American Industry Classification System (NAICS) 2022
Issuing authority	U.S. Census Bureau with OMB, Statistics Canada, and INEGI
Tax authority	Internal Revenue Service (IRS)
Purpose	Statistical business classification and federal contracting (SAM.gov, SBA standards)
Used in	SAM.gov registration, SBA size determinations, IRS tax classification, SEC EDGAR (via SIC crosswalk)
Active since	2022 (current edition)
Hierarchy level	Sector (2-digit)
Source	https://www.census.gov/naics/