Official definition
This Canadian industry comprises establishments primarily engaged in mining or quarrying dimension limestone, rough blocks or slabs of limestone, crushed and broken limestone, and related rocks.
Canadian industry
212315 Limestone mining and quarrying
Extraction de calcaire
Official classification fields for this page
Official classification fields taken from the current StatCan source bundle.
| Characteristic | Description |
|---|---|
| Official title | Limestone mining and quarrying |
| Classification | NAICS Canada 2022 Version 1.0 |
| Publishing authority | Statistics Canada |
| Hierarchical level | Canadian industry |
| Parent code | 21231 - Stone mining and quarrying |
| International correspondence | B0891* |
| Source | https://www.statcan.gc.ca/en/subjects/standard/naics/2022/v1/index |
| Source verification | 2026-08-13 |
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
- grinding or pulverizing of limestone
Exclusions
- limestone fertilizer made in plants producing nitrogenous or phosphatic fertilizer materials (See 325313 Chemical fertilizer (except potash) manufacturing (CAN))
- limestone manufacturing made by mixing purchased materials (See 325314 Mixed fertilizer manufacturing (US))
- producing lime (See 327410 Lime manufacturing)
Examples
- agricultural limestone, ground (except fertilizer)
- calcareous tufa, crushed and broken, quarrying
- cement rock, quarrying
- chalk mine or quarry
- dolomite, crushed and broken stone, quarrying
- travertine, quarrying
- agricultural limestone, ground (except fertilizer)
- bituminous limestone quarrying
- building stone, limestone, rough, mining
- calcareous tufa, crushed and broken, quarrying
- calcareous tufa, dimension, quarrying
- calcium limestone, crude, mining
- cement rock, quarrying
- chalk mine or quarry
- chalk, ground or otherwise treated, mining
- chemical and metallurgical stone, limestone, crude, mining
- dolomite (limestone), crude, quarrying
- dolomite, crushed and broken stone, quarrying
- flux stone, limestone, crude, mining
- grinding or pulverizing of limestone
- lime rock, ground, mining
- limestone crushing, on contract
- limestone cutting (quarrying)
- magnesium limestone, crude, mining
- marl bed or pit
- quarry, dolomite
- sedimentary rock quarry
- stone quarrying, limestone
- travertine, quarrying
- whiting mining, crushed and broken stone, quarrying
Who is this code for
This code typically applies to:
Also relevant for
agricultural limestone, ground (except fertilizer)calcareous tufa, crushed and broken, quarryingcement rock, quarryingchalk mine or quarrydolomite, crushed and broken stone, quarrying
Source: STATCAN_TITLE, 2026-08-13
Classification Confidence Score
5 of 6 factors passing
8/ 10
Verified official source — naics-scian-2022-structure-v1-eng.csv (2026-08-13)
International crosswalk — ISIC Rev. 4 mapping: B0891*
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 212315
These role examples come from the official title and example wording attached to this code.
01
212315
Limestone mining and quarrying
Use this page when the business is directly described by the official title or definition for 212315 Limestone mining and quarrying. It is the closest source-backed checkpoint before BN registration, GST/HST review, banking onboarding, or internal classification work.
02
212315
agricultural limestone, ground (except fertilizer)
Use this page when the activity is described in the official StatCan example wording as agricultural limestone, ground (except fertilizer). Compare the definition, exclusions, and nearby codes here before attaching 212315 Limestone mining and quarrying to a business file.
03
212315
calcareous tufa, crushed and broken, quarrying
Use this page when the activity is described in the official StatCan example wording as calcareous tufa, crushed and broken, quarrying. Compare the definition, exclusions, and nearby codes here before attaching 212315 Limestone mining and quarrying to a business file.
04
212315
cement rock, quarrying
Use this page when the activity is described in the official StatCan example wording as cement rock, quarrying. Compare the definition, exclusions, and nearby codes here before attaching 212315 Limestone 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
- 212314Granite mining and quarrying
- 212315Limestone mining and quarrying
- 212316Marble mining and quarrying
- 212317Sandstone mining and quarrying
Commonly confused with
325313 — Chemical fertilizer (except potash) manufacturing
limestone fertilizer made in plants producing nitrogenous or phosphatic fertilizer materials (See 3...
325314 — Mixed fertilizer manufacturing
limestone manufacturing made by mixing purchased materials (See 325314 Mixed fertilizer manufacturi...
327410 — Lime manufacturing
producing lime (See 327410 Lime manufacturing)
ISIC Rev. 4 correspondence
B0891*Mining of chemical and fertilizer minerals
Approximate correspondence
Agricultural limestone, mining, quarrying, grinding and pulverizing
US NAICS referenceNo exact same-code US entry appears in the local reference workbook.
Source row
212315Limestone 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 212315 cover?
Limestone mining and quarrying: This Canadian industry comprises establishments primarily engaged in mining or quarrying dimension limestone, rough blocks or slabs of limestone, crushed and broken limestone, and related rocks.
Which level of the hierarchy is 212315?
It is a canadian industry page in the NAICS Canada 2026 hierarchy.
What is the parent of 212315?
It rolls up to 21231 Stone mining and quarrying.
Should I stop at 212315 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 212315?
Yes. 1 inclusion note(s) are attached on this page.
Are there exclusion notes for 212315?
Yes. 3 exclusion note(s) help separate this page from nearby codes.
Does 212315 include illustrative examples?
Yes. 30 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, Mine support services.
Is there an ISIC mapping for 212315?
Yes. The page shows B0891* Mining of chemical and fertilizer minerals.
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.