Singapore HS Code

HS Code 290123: Acyclic hydrocarbons : Unsaturated : Butene (butylene) and isomers thereof in Singapore

Q: Is HS code 290123 the same across all countries?

Yes — up to the 6-digit level, HS code 290123 is the same in every WCO member country. Beyond 6 digits, each country extends the code for national tariff and statistical use. Singapore extends it under STCCED / HS-SG.

Q: What system does Singapore use to classify HS code 290123?

Singapore classifies products under the Singapore Trade Classification, Customs & Excise Duties 2022 (STCCED / HS-SG; locally STCCED 2022), which extends HS codes to 8 digits. The first 6 digits align with the WCO Harmonized System, and the rest cover national tariff and statistical needs.

Q: Where can I officially look up HS code 290123 in Singapore?

The official source is https://www.customs.gov.sg/. For faster cross-country lookups, TradeInt's HS Code Tool consolidates classifications across all major countries in one place.

What is HS Code 290123 in Singapore

Under Singapore's Singapore Trade Classification, Customs & Excise Duties 2022 (STCCED 2022), HS Code 290123 is the WCO Harmonized System subheading for Acyclic hydrocarbons : Unsaturated : Butene (butylene) and isomers thereof. This is the most detailed internationally standardized level; Singapore extends classifications to 8 digits under its national tariff system. 290123 belongs to Section VI: Products of the chemical or allied industries, Chapter 29: Organic chemicals, Heading 2901: Acyclic hydrocarbons.

Explore more 2026 Latest Singapore import export trade data and shipment records for HS Code Butene and Isomers on TradeInt global trade data platform

Classification Path of HS Code 290123 in Singapore

Section VI

Chapters (28-38) Products of the chemical or allied industries

Chapter 29

Organic chemicals

HS Code 2901

Acyclic hydrocarbons

HS Code 290123

Acyclic hydrocarbons : Unsaturated : Butene (butylene) and isomers thereof

HS Code 29012300

"Butene ""butylene"" and isomers thereof"

Singapore Tariff Classification: Singapore Trade Classification, Customs & Excise Duties 2022 (STCCED / HS-SG)

In Singapore, HS 290123 is classified under the Singapore Trade Classification, Customs & Excise Duties 2022 (STCCED 2022) — a 8-digit national extension of the WCO 6-digit Harmonized System.

Tariff schedule Singapore Trade Classification, Customs & Excise Duties 2022 (STCCED / HS-SG)

Local name STCCED 2022

Digits 8

Official source https://www.customs.gov.sg/

You know what 290123 means. Now see 2026 latest real trade activity for Butene and Isomers in Singapore.

Buyers, suppliers, origin and destination countries, shipment dates, and quantities direct from customs records.

Search 2026 Latest Singapore Import Data Search 2026 Latest Singapore Export Data

Top Trading Product of HS Code 2901

Top Singapore import Product Under HS Code 2901

1 290129: Unsaturated : Other $218.4M 2 290122: Unsaturated : Propene (propylene) $70.1M 3 290110: Saturated $29.2M

Figures shown for 2025.

For more 2026 recent data, search for Singapore import trade records

Top Singapore export Product Under HS Code 2901

1 290121: Unsaturated : Ethylene $291.4M 2 290124: Unsaturated : Buta1,3diene and isoprene $123.0M 3 290129: Unsaturated : Other $78.2M

Figures shown for 2025.

For more 2026 recent data, search for Singapore export trade records

Related HS Code to Singapore Butene and Isomers (290123)

HS Code 29012300

"Butene ""butylene"" and isomers thereof"

HS Code 290110

Acyclic hydrocarbons : Saturated

HS Code 290121

Acyclic hydrocarbons : Unsaturated : Ethylene

HS Code 290122

Acyclic hydrocarbons : Unsaturated : Propene (propylene)

HS Code 290124

Acyclic hydrocarbons : Unsaturated : Buta1,3diene and isoprene

HS Code 290129

Acyclic hydrocarbons : Unsaturated : Other

HS Code 290211

Cyclic hydrocarbons : Cyclanes, cyclenes and cycloterpenes : Cyclohexane

HS Code 290219

Cyclic hydrocarbons : Cyclanes, cyclenes and cycloterpenes : Other

HS Code 290220

Cyclic hydrocarbons : Benzene

HS Code 290230

Cyclic hydrocarbons : Toluene

Frequently Asked Questions

What is HS code 290123 in Singapore?

HS code 290123 covers Acyclic hydrocarbons : Unsaturated : Butene (butylene) and isomers thereof in Singapore. It sits in Chapter 29 (Organic chemicals), Heading 2901 of the Harmonized System, and is classified under STCCED / HS-SG.

Is HS code 290123 the same across all countries?

What system does Singapore use to classify HS code 290123?

Where can I officially look up HS code 290123 in Singapore?