Key Facts
072904 at a Glance
Code 072904
Official title Mining of zinc ore (calamine or smithsonite, zincite, etc)
Version NIC 2025
Source authority MoSPI
Section B - Mining and quarrying
Division 07 - Mining of metal ores
Mn
NIC 2025 MoSPI source NIC 072904 - Mining of zinc ore (calamine or smithsonite, zincite, etc)
NIC 072904 classifies mining of zinc ore (calamine or smithsonite, zincite, etc) as a final six-digit resource extraction activity under Section B and Division 07. Use it when this activity is the main source of revenue.
Source Verification for 072904
5 / 10
2 of 4 factors passing
- Verified in official source - Found in NIC_2025.xlsx official MoSPI release dataset.
- International crosswalk available - No official ISIC/NACE/CPC/ISCO correspondence table is bundled in this build input set.
- Migration from previous edition - No legacy migration candidate found in the NIC 2008 converter layer for this code.
- Complete hierarchy chain - All parent levels exist: Section > Division > Group > Class > Sub-class (5 levels).
- Official size/threshold documented - No official code-level size or threshold dataset is included in this source bundle.
- Trade or export crosswalk match - No official NIC-to-HS/export correspondence table is bundled in this source bundle.
- Legacy national crosswalk - No linked NIC 2008 legacy code is available for this record in the current converter layer.
Who typically uses this NIC code?
This code typically applies to:
Supervisors and Foremen in Mining and Mineral Processing Plant Operation Activities, OtherSampler, Mining/Sampler Metal/Non-MetalGroove Cutter, MiningMineral and Stone Processing Plant Operators, OtherMining Managers, Other
Also relevant for
Mining Engineers, Metallurgists and Related Professionals, OtherMining Engineer, Petroleum and GasMining Engineer, Metal
Source: NCO-2015-OFFICIAL, 2026-05-12
Related classifications
PROFESSION 3121.9900
Supervisors and Foremen in Mining and Mineral Processing Plant Operation Activities, Other
PROFESSION 8111.1900 Sampler, Mining/Sampler Metal/Non-Metal
PROFESSION 8111.2000 Groove Cutter, Mining
PROFESSION 8112.9900 Mineral and Stone Processing Plant Operators, Other
PROFESSION 1322.9900 Mining Managers, Other
PROFESSION 2146.9900 Mining Engineers, Metallurgists and Related Professionals, Other
PROFESSION 2146.0400 Mining Engineer, Petroleum and Gas
PROFESSION 2146.0300 Mining Engineer, Metal
Practical Summary
What Mining of zinc ore (calamine or smithsonite Means Under NIC 2025
NIC 072904 is the final six-digit endpoint for Mining of zinc ore (calamine or smithsonite, zincite, etc). It should be selected only when the enterprise's primary resource extraction activity matches this title more closely than 072901 Mining of copper ore (chalcopyrite), 072902 Mining of aluminium ore (bauxite), 072903 Mining of lead ore (lead sulphide/ galena/ lead glance).
How To Choose
When to Choose 072904 Over Nearby Codes
Choose 072904 only when operations, invoices and revenue narrative align with Mining of zinc ore (calamine or smithsonite, zincite, etc). If the activity also includes 072901 Mining of copper ore (chalcopyrite), 072902 Mining of aluminium ore (bauxite), 072903 Mining of lead ore (lead sulphide/ galena/ lead glance), compare those pages before filing.
In this section
072901
Mining of copper ore (chalcopyrite)
072902 Mining of aluminium ore (bauxite)
072903 Mining of lead ore (lead sulphide/ galena/ lead glance)
072904
072905 Mining of zinc ore (calamine or smithsonite, zincite, etc)
Mining of manganese ore (pyrolusite, etc)
072906 Mining of chrome ore
072907 Mining of precious metal ore (gold, silver)
072999 Mining of other non-ferrous metal ores n.e.c.
Common Questions About NIC 072904
Does NIC 072904 apply to extraction or only mining support work?
Use the mining or quarrying Sub-class only when the enterprise performs the extraction activity itself. Exploration, drilling, site preparation or contractor support may belong under mining support service codes instead.
Should mineral trading use NIC 072904?
No. Selling coal, ore, stone, sand or fuel without extracting it is usually a wholesale or retail trade activity. Section B is for extraction and directly related mining operations.
How do I verify that NIC 072904 is correct before filing?
Check the parent hierarchy, compare 072901 Mining of copper ore (chalcopyrite), 072902 Mining of aluminium ore (bauxite), 072903 Mining of lead ore (lead sulphide/ galena/ lead glance), and confirm that the official title matches the main revenue activity. For regulated or filing-critical decisions, verify the source row in the MoSPI dataset.
What happens if I use the wrong NIC code in Udyam or MCA registration?
A wrong code can cause mismatched business descriptions, follow-up questions or later compliance cleanup. It is better to compare nearby codes before filing than to correct a weak classification later.
Is there a legacy NIC 2008 equivalent for NIC 072904?
Use the legacy converter only as a migration aid. Old NIC 2008 matches can suggest where to look, but NIC 2025 should remain the primary reference for new code selection.
NIC 2026 guidance
Before you select NIC 072904
NIC 072904 should be selected only when the official title matches the main revenue-generating activity. If the business also trades, transports, processes, installs or supports the same product or service, compare nearby NIC pages before filing. This reduces the risk of choosing a code that describes the product being handled rather than the activity your enterprise actually performs.
Data Source and Verification Date
Source layer
Official NIC 2025 Excel and PDF from MoSPI.
Last verified
2026-04-21 from the generated NIC 2025 source layer used in this build.
Disclaimer
This is an independent reference tool. Verify filing-critical decisions in official sources.