Official definition
This Canadian industry comprises establishments primarily engaged in mining or quarrying shale and mining, beneficiating or otherwise preparing kaolin or ball clay and other clays and refractory minerals.
Canadian industry
212326 Shale, clay and refractory mineral mining and quarrying
Extraction de schiste, d'argile et de minerais réfractaires
Official classification fields for this page
Official classification fields taken from the current StatCan source bundle.
| Characteristic | Description |
|---|---|
| Official title | Shale, clay and refractory mineral mining and quarrying |
| Classification | NAICS Canada 2022 Version 1.0 |
| Publishing authority | Statistics Canada |
| Hierarchical level | Canadian industry |
| Parent code | 21232 - Sand, gravel, clay, and ceramic and refractory minerals mining and quarrying |
| International correspondence | B0899* |
| 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. |
Inclusions
- operations in conjunction with plants that manufacture cement, brick or other structural clay products, or pottery and related products, when separate reports are not available
Exclusions
- grinding, pulverizing or otherwise treating ceramic minerals, not in conjunction with mining or quarrying operations (See 327110 Pottery, ceramics and plumbing fixture manufacturing (US))
- grinding, pulverizing or otherwise treating clay and refractory minerals, not in conjunction with mining or quarrying operations (See 327120 Clay building material and refractory manufacturing (US))
Examples
- bentonite mining
- common clay quarrying
- fuller's earth mining
- nepheline syenite mining
- andalusite mining
- aplite mining
- ball clay mining
- bentonite mining
- brucite mining
- burley mining
- china clay mining
- common clay quarrying
- conglomerate mine or quarry
- Cornwall stone mining
- cyanite mining
- diaspore mining
- dumortierite mining
- feldspar mining
- feldspar, crushed, ground or pulverized, mining
- fire clay mining
- fuller's earth mining
- kaolin mining
- kyanite mining
- magnesite mining
- nepheline syenite mining
- nepheline syenite quarrying
- olivine (nongem) mining
- operations in conjunction with plants that manufacture cement, brick or other structural clay products, or pottery and related products, when separate reports are not available
- pegmatite (feldspar) mining
- pinite mining
- plastic fire clay mining
- shale mining
- sillimanite mining
- slip clay mining
- stoneware clay mining
- topaz (nongem) mining
Who is this code for
This code typically applies to:
Also relevant for
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: B0899*
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 212326
These role examples come from the official title and example wording attached to this code.
01
212326
Shale, clay and refractory mineral mining and quarrying
Use this page when the business is directly described by the official title or definition for 212326 Shale, clay and refractory mineral mining and quarrying. It is the closest source-backed checkpoint before BN registration, GST/HST review, banking onboarding, or internal classification work.
02
212326
bentonite mining
Use this page when the activity is described in the official StatCan example wording as bentonite mining. Compare the definition, exclusions, and nearby codes here before attaching 212326 Shale, clay and refractory mineral mining and quarrying to a business file.
03
212326
common clay quarrying
Use this page when the activity is described in the official StatCan example wording as common clay quarrying. Compare the definition, exclusions, and nearby codes here before attaching 212326 Shale, clay and refractory mineral mining and quarrying to a business file.
04
212326
fuller's earth mining
Use this page when the activity is described in the official StatCan example wording as fuller's earth mining. Compare the definition, exclusions, and nearby codes here before attaching 212326 Shale, clay and refractory mineral mining and quarrying 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
- 212323Sand and gravel mining and quarrying
- 212326Shale, clay and refractory mineral mining and quarrying
Commonly confused with
327110 — Pottery, ceramics and plumbing fixture manufacturing
grinding, pulverizing or otherwise treating ceramic minerals, not in conjunction with mining or qua...
327120 — Clay building material and refractory manufacturing
grinding, pulverizing or otherwise treating clay and refractory minerals, not in conjunction with m...
ISIC Rev. 4 correspondence
B0899*Other mining and quarrying n.e.c.
Approximate correspondence
Minerals n.e.c. (e.g., brucite, feldspar, magnesite, olivine and topaz (non-gem)), quarrying
US NAICS referenceNo exact same-code US entry appears in the local reference workbook.
Source row
212326Shale, clay and refractory mineral mining and quarrying
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 212326 cover?
Shale, clay and refractory mineral mining and quarrying: This Canadian industry comprises establishments primarily engaged in mining or quarrying shale and mining, beneficiating or otherwise preparing kaolin or ball clay and other clays and refractory minerals.
Which level of the hierarchy is 212326?
It is a canadian industry page in the NAICS Canada 2026 hierarchy.
What is the parent of 212326?
It rolls up to 21232 Sand, gravel, clay, and ceramic and refractory minerals mining and quarrying.
Should I stop at 212326 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 212326?
Yes. 1 inclusion note(s) are attached on this page.
Are there exclusion notes for 212326?
Yes. 2 exclusion note(s) help separate this page from nearby codes.
Does 212326 include illustrative examples?
Yes. 36 example row(s) are available for boundary checking.
What kinds of businesses often start from this page?
Examples in this branch include Field drilling, Quarry operations, Oil and gas support, Industrial minerals, Resource extraction.
Is there an ISIC mapping for 212326?
Yes. The page shows B0899* Other mining and quarrying n.e.c..
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.