SSIC 2025 sub-class

Construction & Real Estate Verified · 15 Apr 2025

43904

Production of pre-cast components

This sub-class includes: •production of precast concrete, wood or steel components such as: - beams, columns, planks, hollowcore slab, rafters and/or roof struts - load bearing walls, household shelters, prefabricated bathroom units, facades - bay windows, staircases, non-load bearing walls/panels, planter boxes - refuse chutes, tunnel segments, drains and/or kerbs - glue-laminated or metal connected prefabricated roof trusses - parquet floor blocks, strips, etc., assembled into panels - railings, doors, windows, shutters and/or their frames •production of pre-fabricated buildings, or elements thereof, predominantly of metal, wood or concrete (e.g., site huts, modular exhibition elements) •production of mobile homes Installation and erection may/may not be carried out by establishment itself.

SSIC hierarchy ISIC class Crosswalks

Level

final

Mapped ISIC codes

Source

SingStat

Official data

Official name	Singapore Standard Industrial Classification (SSIC 2025)
Issuing authority	Department of Statistics Singapore (SingStat / DOS)
Tax authority	Inland Revenue Authority of Singapore (IRAS) (IRAS)
Purpose	Mandatory at ACRA business/company registration; used by IRAS, MOM, EDB, SingStat
Active version	SSIC 2025 (15 Apr 2025)
Hierarchy level	Sub-class (5-digit) (final leaf)
Source	https://www.singstat.gov.sg/standards/standards-and-classifications/ssic
Prior versions	SSIC 2020, SSIC 2015

When you need this code

ACRA registration

Select this code as principal or secondary SSIC when registering your business entity via BizFile+.

Licensing

Building and Construction Authority (BCA) may require sector-specific licence. Check with authority.

Tax filing

IRAS uses SSIC for industry profiling. File Form C / C-S / C-S (Lite) via myTax Portal annually.

Banking

Banks may request your registered SSIC for KYC, merchant acquiring, and sector risk assessment.

Hierarchy

F→43→439→4390→43904 Production of pre-cast components

Correspondence tables

SSIC 2020

43904 — Production of pre-cast components

ISIC Rev. 5

1622 Manufacture of builders' carpentry and joinery
2395 Manufacture of articles of concrete, cement and plaster
2511 Manufacture of structural metal products
4390 Other specialized construction activities

ISIC crosswalk

ISIC Rev. 5 class 1622 Manufacture of builders' carpentry and joinery Open ISIC class page with reverse SSIC links. ISIC Rev. 5 class 2395 Manufacture of articles of concrete, cement and plaster Open ISIC class page with reverse SSIC links. ISIC Rev. 5 class 2511 Manufacture of structural metal products Open ISIC class page with reverse SSIC links. ISIC Rev. 5 class 4390 Other specialized construction activities Open ISIC class page with reverse SSIC links. Full table SSIC 2025 to ISIC Rev. 5 Open the full correspondence table.

Compliance risk score

Low friction

5 of 6 factors low-risk

✅ Verified source ≤90d
✅ ISIC mapping available
✅ SSIC 2020 migration mapped
✅ Full hierarchy chain
✅ GST registration applicable
⚠️ BCA registered?

How we calculate this score

Step-by-step guide

1. Confirm the activity matches

Examples: <Blank>

2. Check ISIC crosswalk

Maps to 4 ISIC Rev. 5 class(es). Verify the international alignment matches your scope.

3. Register via BizFile+

File entity registration with ACRA at https://www.bizfile.gov.sg. Declare this SSIC code as principal or secondary.

4. Apply for sector licences

Building and Construction Authority (BCA) — check the relevant authority for specific licence requirements and application forms.

Applicable taxes & forms

Corporate income tax

Rate: 17%

75% exemption on first SGD 10,000 + 50% on next SGD 190,000

GST

Rate: 9% (since 1 January 2024)

Threshold: SGD 1,000,000. If registered, InvoiceNow e-invoicing may apply.

Applicable filings

Form C

myTax Portal · Annual (by 30 Nov for paper, 15 Dec e-file)

Full corporate income tax return for companies. Requires audited/unaudited financial statements.

Form C-S

myTax Portal · Annual (by 15 Dec)

Simplified return for companies with revenue ≤ SGD 5M and deriving income taxed at prevailing corporate rate.

Form C-S (Lite)

myTax Portal · Annual (by 15 Dec)

Simplest return for companies with revenue ≤ SGD 200K.

Form F5

myTax Portal · Quarterly

GST return. GST-registered businesses must file within 1 month of quarter end.

Estimated Chargeable Income (ECI)

myTax Portal · Within 3 months of FYE

Compulsory for all companies. IRAS issues Notice of Assessment based on ECI.

BCA CRS Registration

BCA · 3-year renewal

BCA Contractors Registry System registration and renewal.

Who uses this code

Typical professionals and business operators mapped to the Construction & Real Estate cluster.

M&E (Mechanical & Electrical) subcontractor

Installs HVAC, plumbing, fire protection, and electrical systems.

Typically also needs

EMA electrical worker licence, SCDF fire protection licence.

Demolition contractor

Carries out controlled demolition of structures.

Typically also needs

BCA demolition permit, NEA noise and dust management plan.

Construction safety officer

Ensures site compliance with Workplace Safety and Health regulations.

Typically also needs

MOM WSH Officer registration, bizSAFE Level 4+.

Project manager (construction)

Coordinates project timeline, budget, and stakeholder communications.

Typically also needs

BCA Construction Project Manager accreditation.

General building contractor

Oversees residential and commercial construction projects end to end.

Typically also needs

BCA registration (A1–C3 grade), MOM WSH risk assessment, SCDF fire safety plan.

Related codes

Parent class

4390 Other Specialised Construction Activities

Parent division

43 SPECIALISED CONSTRUCTION ACTIVITIES

Parent section

F CONSTRUCTION

Sibling codes

class 4390 Other Specialised Construction Activities final 43901 Foundation works; micropiling, conventional piling and underpinning final 43902 Brick laying, stone setting and cement works final 43903 Roofing works; timber carcassing final 43905 Scaffolding works final 43906 Sandblasting/shotblasting works (except ships)

Alphabetical index entries

Principal Title 43904 Production of pre-cast components Alternative Title 43904 Bridge structural metal section manufacturing Alternative Title 43904 Building structural metal section manufacturing Alternative Title 43904 Concrete pre-cast component production Alternative Title 43904 Concrete-filled column production Alternative Title 43904 Erection of complete prefabricated constructions from self-manufactured parts of all materials

Frequently asked questions

About this specific SSIC code and the Construction & Real Estate sector

Do I need BCA registration or licensing?

Builders, specialist contractors, and construction-related firms must register with the Building and Construction Authority (BCA) under the BCA Contractors Registry System or relevant licensing scheme.

What workplace safety requirements apply?

The Workplace Safety and Health (WSH) Act requires risk assessments, safety management systems, and specific permits for high-risk construction work. MOM enforces compliance.

Are there minimum financial requirements?

BCA registration grades (A1 to C3) have minimum paid-up capital and net worth requirements. Higher-value projects require a higher registration grade.

What environmental impact obligations apply?

Construction sites must comply with NEA regulations on noise, dust, and waste management. Environmental impact assessments may be required for large-scale projects.

What is SSIC and why does it matter?

The Singapore Standard Industrial Classification (SSIC) is the national system for categorising business activities. It is mandatory at ACRA registration and is used by IRAS, MOM, and other government agencies for tax, licensing, statistical, and policy purposes.

Do I need to register with this SSIC code?

Every business entity registered with ACRA must select at least one SSIC code that best describes its principal economic activity. You can declare up to two codes — one primary and one secondary — via BizFile+.

What international standard does SSIC map to?

SSIC 2025 is aligned with the UN International Standard Industrial Classification (ISIC) Rev. 5. Each SSIC code maps to one or more ISIC Rev. 5 classes, making Singapore business data internationally comparable.

Can I hold more than one SSIC code at the same time?

Yes. ACRA allows one primary SSIC code and one secondary SSIC code per registered entity. If your business spans multiple distinct activities, choose the code that generates the highest share of revenue as primary.

How do I change my registered SSIC code?

You can update your SSIC code through BizFile+ by filing a "Change in Business Activity" transaction. Changes take effect upon ACRA approval. IRAS and other agencies should also be notified if the change affects tax classification.

Official sources

SingStat SSIC page Official · opens in new tab ACRA BizFile+ Official · opens in new tab IRAS website Official · opens in new tab GoBusiness Singapore Official · opens in new tab UN ISIC Rev. 5 Official · opens in new tab Data.gov.sg Official · opens in new tab Enterprise Singapore Official · opens in new tab

What to do next

Go to BizFile+ and register your company or business with this SSIC code.

Verify ISIC mapping

Check the full SSIC 2025 to ISIC Rev. 5 correspondence table.

Tax obligations

IRAS for corporate tax, GST registration, and filing requirements.

Data source: Department of Statistics Singapore (SingStat / DOS) (https://www.singstat.gov.sg/standards/standards-and-classifications/ssic). The site mirrors official workbook data and adds deterministic cluster mapping and risk scoring. Not the authoritative source — always verify against the original spreadsheet.

Last data refresh: 15 Apr 2025. Classification version: SSIC 2025.

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