This subsector comprises establishments primarily engaged in manufacturing chemicals and chemical preparations, from organic and inorganic raw materials.

Classification Reference

Official classification fields for this page

Official classification fields taken from the current StatCan source bundle.

Characteristic	Description
Official title	Chemical manufacturing
Classification	NAICS Canada 2022 Version 1.0
Publishing authority	Statistics Canada
Hierarchical level	Subsector
Parent code	31-33 - Manufacturing
International correspondence	ISIC Rev. 4; harmonized with US and Mexico NAICS at higher levels.
Source	https://www.statcan.gc.ca/en/subjects/standard/naics/2022/v1/index
Source verification	2026-07-17

Canada Business Context

Canada-wide tax and filing context

Canada-wide business, tax, and filing context from the local country pack and tax pack.

Characteristic	Description
Tax authority	Canada Revenue Agency (CRA)
Business identifier	Business Number (BN): 9-digit identifier with program account suffixes such as RT0001 for GST/HST, RP0001 for payroll, and RC0001 for corporate income tax.
Filing requirements	Business Number registration; Form T2125 (Statement of Business or Professional Activities) attached to T1; Form T2 (Corporation Income Tax Return); Form T5013; Form GST34
Sector authority	No cluster authority recorded in the local country pack.

Exclusions

beneficiating mineral ores (See 212 Mining and quarrying (except oil and gas))
field processing of crude petroleum and natural gas (See 211 Oil and gas extraction)
processing crude petroleum and coal (See 324 Petroleum and coal product manufacturing)
smelting and refining ores and concentrates (See 331 Primary metal manufacturing)

Classification Confidence Score

3 of 5 factors passing

6/ 10

Verified official source — naics-scian-2022-structure-v1-eng.csv (2026-07-17)

International crosswalk — No international correspondence found

Previous edition migration — NAICS 2017 to 2022 continuity confirmed

Complete hierarchy — 2 levels confirmed in hierarchy

Size or threshold documented — Not applicable for hub levels

Trade or export match — No direct HS code correspondence in current bundle

Legacy crosswalk — Legacy system (SIC 1980) retired in this region

Business Profiles

When you might need code 325

Professions specific to this sector are linked to this part of the Canadian classifier so the page speaks to real work teams.

01 325

Packaging line coordinator

Use this page when the file covers labeling, filling, sealing, palletizing, and contract packing. It helps confirm whether 325 Chemical manufacturing is the closest NAICS Canada branch before BN registration, GST/HST review, banking onboarding, procurement notes, or internal classification work.

02 325

Metal fabrication estimator

Use this page when the file covers custom metal jobs, fabrication quotes, welding loads, and shop planning. It helps confirm whether 325 Chemical manufacturing is the closest NAICS Canada branch before BN registration, GST/HST review, banking onboarding, procurement notes, or internal classification work.

03 325

Food plant production manager

Use this page when the file covers food processing lines, packaging shifts, quality holds, and plant throughput. It helps confirm whether 325 Chemical manufacturing is the closest NAICS Canada branch before BN registration, GST/HST review, banking onboarding, procurement notes, or internal classification work.

04 325

Plastics extrusion supervisor

Use this page when the file covers extrusion runs, resin changeovers, tooling setups, and output scheduling. It helps confirm whether 325 Chemical manufacturing is the closest NAICS Canada branch before BN registration, GST/HST review, banking onboarding, procurement notes, or internal classification work.

Business Map

Business categories in this branch

A rotating set of business activity examples linked to this part of the Canadian hierarchy.

In this section

Commonly confused with

212 — Mining and quarrying (except oil and gas)

beneficiating mineral ores (See 212 Mining and quarrying (except oil and gas))

211 — Oil and gas extraction

field processing of crude petroleum and natural gas (See 211 Oil and gas extraction)

324 — Petroleum and coal product manufacturing

processing crude petroleum and coal (See 324 Petroleum and coal product manufacturing)

331 — Primary metal manufacturing

smelting and refining ores and concentrates (See 331 Primary metal manufacturing)

Source row

325Chemical manufacturing

This page mirrors the source row from the structure CSV and the matching rows from the elements and crosswalk files.

Frequently asked questions

What does code 325 cover?

Chemical manufacturing: This subsector comprises establishments primarily engaged in manufacturing chemicals and chemical preparations, from organic and inorganic raw materials.

Which level of the hierarchy is 325?

It is a subsector page in the NAICS Canada 2026 hierarchy.

What is the parent of 325?

It rolls up to 31-33 Manufacturing.

Should I stop at 325 or go lower?

7 lower-level item(s) sit under this branch: Basic chemical manufacturing, Resin, synthetic rubber, and artificial and synthetic fibres and filaments manufacturing, Pesticide, fertilizer and other agricultural chemical manufacturing, Pharmaceutical and medicine manufacturing.

Are official inclusion notes attached to 325?

No inclusion rows are attached to this page in the local elements file.

Are there exclusion notes for 325?

Yes. 4 exclusion note(s) help separate this page from nearby codes.

Does 325 include illustrative examples?

No example rows are attached on this page in the local elements file.

What kinds of businesses often start from this page?

Examples in this branch include Wood products, Consumer goods, Food processing, Metal fabrication.

Is there an ISIC mapping for 325?

No ISIC correspondence row is attached to this page.

Does this page show a US NAICS reference?

No same-code US NAICS reference row is attached on this page.

Why are both English and French titles shown?

NAICS Canada is bilingual, so the page keeps both language titles visible for comparison and lookup.

Where does the page text come from?

From the local StatCan structure file, elements file, ISIC crosswalk, and the bundled US 6-digit reference workbook.