325110

Petrochemical Manufacturing

Manufacturing › Chemical Manufacturing › Basic Chemical Manufacturing

SBA Size Standard

1,300 employees

Employee-Based Verify at SBA.gov →

NAICS Code Hierarchy

32

Sector

Manufacturing

325

Subsector

Chemical Manufacturing

3251

Industry Group

Basic Chemical Manufacturing

325110

National Industry (This Code)

Petrochemical Manufacturing

Official NAICS Description

Source: U.S. Census Bureau 2022 NAICS

📘 Source: U.S. Census Bureau — 2022 NAICS Manual
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.

✓ Small Business Eligibility at a Glance

Based on SBA Table of Small Business Size Standards (2024)

Size Standard

1,300 employees

Measurement Period

Current count

Standard Type

Employee-Based

Applies To

All contracts under NAICS 325110

Set-Aside Programs

8(a), WOSB, HUBZone, SDVOSB

Certification Required

No (self-certify in SAM.gov)

Size standards are set by the SBA and reviewed periodically. Always verify at SBA.gov before bidding.

Cross-References

The following activities are classified elsewhere in the NAICS system:

Manufacturing petrochemicals by refining crude petroleum--are classified in Industry 324110, Petroleum Refineries;
Manufacturing acetylene--are classified in Industry 325120, Industrial Gas Manufacturing;
Manufacturing basic organic chemicals (except petrochemicals)--are classified in Industry 32519, Other Basic Organic Chemical Manufacturing; and
Recovering liquid hydrocarbons from oil and gas field gases--are classified in Industry 211130, Natural Gas Extraction.

How to Use NAICS 325110 in SAM.gov

NAICS code 325110Petrochemical Manufacturing — is used in SAM.gov to identify businesses whose primary activity falls within this classification. When you add this code to your SAM.gov entity registration, contracting officers searching for vendors in the Basic Chemical Manufacturing space will be able to find your business.

If this code represents your primary business activity, designate it as your primary NAICS code. Your primary NAICS code determines your size standard for any contract solicited under this code. With a size standard of 1,300 employees, your business must be at or below this threshold to qualify as a small business for set-aside contracts under NAICS 325110.

Log in Entity Registration Goods & Services Add NAICS Code Enter 325110 Save

Frequently Asked Questions

What is NAICS code 325110?

NAICS code 325110 is 'Petrochemical Manufacturing', classified under the Manufacturing sector (NAICS 32). 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 hyd

What is the SBA small business size standard for NAICS code 325110?

The SBA defines a small business under NAICS code 325110 (Petrochemical Manufacturing) as one with 1,300 employees. This size standard determines eligibility for small business set-aside contracts, 8(a), HUBZone, WOSB, and SDVOSB programs in SAM.gov.

How do I register NAICS code 325110 in SAM.gov?

To register NAICS code 325110 in SAM.gov: (1) Log in at sam.gov, (2) Navigate to your Entity Registration, (3) Go to the Assertions section, (4) Add 325110 (Petrochemical Manufacturing) to your NAICS code list. You may designate one code as your Primary NAICS code.

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Related NAICS Codes

Other codes in Basic Chemical Manufacturing

Related PSC Codes

PSC codes commonly used with this NAICS sector

Source: GSA PSC Manual April 2025

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