Official definition
This Canadian industry comprises establishments primarily engaged in manufacturing alkalies and chlorine, often using an electrolysis process.
Canadian industry
325181 Alkali and chlorine manufacturing
Fabrication d'alcalis et de chlore
Official classification fields for this page
Official classification fields taken from the current StatCan source bundle.
| Characteristic | Description |
|---|---|
| Official title | Alkali and chlorine manufacturing |
| Classification | NAICS Canada 2022 Version 1.0 |
| Publishing authority | Statistics Canada |
| Hierarchical level | Canadian industry |
| Parent code | 32518 - Other basic inorganic chemical manufacturing |
| International correspondence | C2011* |
| Source | https://www.statcan.gc.ca/en/subjects/standard/naics/2022/v1/index |
| Source verification | 2026-05-05 |
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
- manufacturing chlorine preparations for swimming pools (See 325999 All other miscellaneous chemical product manufacturing (CAN))
- manufacturing household bleaches (See 325610 Soap and cleaning compound manufacturing (MEX))
- manufacturing industrial bleaches (See 325189 All other basic inorganic chemical manufacturing (CAN))
- mining and preparing alkalies (See 212396 Potash mining (CAN))
Examples
- potassium hydroxide (i.e., caustic potash), manufacturing
- sodium bicarbonate (i.e., baking soda), manufacturing
- sodium carbonate (i.e., soda ash), manufacturing
- sodium hydroxide (i.e., caustic soda), manufacturing
- alkalis, manufacturing
- caustic potash (i.e., potassium hydroxide), manufacturing
- caustic soda (i.e., sodium hydroxide), manufacturing
- chlorine, manufacturing
- potassium carbonate, manufacturing
- potassium hydroxide (i.e., caustic potash), manufacturing
- sal soda (i.e., washing soda), manufacturing
- soda ash (i.e., disodium carbonate), manufacturing
- sodium bicarbonate (i.e., baking soda), manufacturing
- sodium carbonate (i.e., soda ash), manufacturing
- sodium hydroxide (i.e., caustic soda), manufacturing
Who is this code for
This code typically applies to:
Also relevant for
potassium hydroxide (i.e., caustic potash), manufacturingsodium bicarbonate (i.e., baking soda), manufacturingsodium carbonate (i.e., soda ash), manufacturingsodium hydroxide (i.e., caustic soda), manufacturingalkalis, manufacturing
Source: STATCAN_TITLE, 2026-05-05
Classification Confidence Score
5 of 6 factors passing
8/ 10
Verified official source — naics-scian-2022-structure-v1-eng.csv (2026-05-05)
International crosswalk — ISIC Rev. 4 mapping: C2011*
Previous edition migration — NAICS 2017 to 2022 continuity confirmed
Complete hierarchy — 5 levels confirmed in hierarchy
Size or threshold documented — SME thresholds documented in federal tax pack
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 325181
These role examples come from the official title and example wording attached to this code.
01
325181
Alkali and chlorine manufacturing
Use this page when the business is directly described by the official title or definition for 325181 Alkali and chlorine manufacturing. It is the closest source-backed checkpoint before BN registration, GST/HST review, banking onboarding, or internal classification work.
02
325181
potassium hydroxide (i.e., caustic potash), manufacturing
Use this page when the activity is described in the official StatCan example wording as potassium hydroxide (i.e., caustic potash), manufacturing. Compare the definition, exclusions, and nearby codes here before attaching 325181 Alkali and chlorine manufacturing to a business file.
03
325181
sodium bicarbonate (i.e., baking soda), manufacturing
Use this page when the activity is described in the official StatCan example wording as sodium bicarbonate (i.e., baking soda), manufacturing. Compare the definition, exclusions, and nearby codes here before attaching 325181 Alkali and chlorine manufacturing to a business file.
04
325181
sodium carbonate (i.e., soda ash), manufacturing
Use this page when the activity is described in the official StatCan example wording as sodium carbonate (i.e., soda ash), manufacturing. Compare the definition, exclusions, and nearby codes here before attaching 325181 Alkali and chlorine manufacturing to a business file.
Business categories in this branch
A rotating set of business activity examples linked to this part of the Canadian hierarchy.
In this section
- 325181Alkali and chlorine manufacturing
- 325189All other basic inorganic chemical manufacturing
Commonly confused with
325999 — All other miscellaneous chemical product manufacturing
manufacturing chlorine preparations for swimming pools (See 325999 All other miscellaneous chemical...
325610 — Soap and cleaning compound manufacturing
manufacturing household bleaches (See 325610 Soap and cleaning compound manufacturing (MEX))
325189 — All other basic inorganic chemical manufacturing
manufacturing industrial bleaches (See 325189 All other basic inorganic chemical manufacturing (CAN...
212396 — Potash mining
mining and preparing alkalies (See 212396 Potash mining (CAN))
ISIC Rev. 4 correspondence
C2011*Manufacture of basic chemicals
Approximate correspondence
Alkali (e.g., sodium bicarbonate, caustic soda) and chlorine, manufacturing
US NAICS referenceNo exact same-code US entry appears in the local reference workbook.
Source row
325181Alkali and chlorine 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 325181 cover?
Alkali and chlorine manufacturing: This Canadian industry comprises establishments primarily engaged in manufacturing alkalies and chlorine, often using an electrolysis process.
Which level of the hierarchy is 325181?
It is a canadian industry page in the NAICS Canada 2026 hierarchy.
What is the parent of 325181?
It rolls up to 32518 Other basic inorganic chemical manufacturing.
Should I stop at 325181 or go lower?
This page already points to the exact six-digit Canadian industry in the current site structure.
Are official inclusion notes attached to 325181?
No inclusion rows are attached to this page in the local elements file.
Are there exclusion notes for 325181?
Yes. 4 exclusion note(s) help separate this page from nearby codes.
Does 325181 include illustrative examples?
Yes. 15 example row(s) are available for boundary checking.
What kinds of businesses often start from this page?
Examples in this branch include Wood products, Consumer goods, Food processing, Metal fabrication, Machinery assembly, Chemical production.
Is there an ISIC mapping for 325181?
Yes. The page shows C2011* Manufacture of basic chemicals.
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.