Korea, Republic of HS Code

HS Code 290431: Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride : Perfluorooctane sulphonic acid in Korea, Republic of

Q: Is HS code 290431 the same across all countries?

Yes — up to the 6-digit level, HS code 290431 is the same in every WCO member country. Beyond 6 digits, each country extends the code for national tariff and statistical use. Korea, Republic of extends it under HSK.

Q: What system does Korea, Republic of use to classify HS code 290431?

Korea, Republic of classifies products under the Harmonized System of Korea (HSK; locally 관세·통계통합품목분류표), which extends HS codes to 10 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 290431 in Korea, Republic of?

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

What is HS Code 290431 in Korea, Republic of

Under Korea, Republic of's Harmonized System of Korea (관세·통계통합품목분류표), HS Code 290431 is the WCO Harmonized System subheading for Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride : Perfluorooctane sulphonic acid. This is the most detailed internationally standardized level; Korea, Republic of extends classifications to 10 digits under its national tariff system. 290431 belongs to Section VI: Products of the chemical or allied industries, Chapter 29: Organic chemicals, Heading 2904: Sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated.

Explore more 2026 Latest Korea, Republic of import export trade data and shipment records for HS Code Perfluorooctane Sulphonic Acid (PFOS) on TradeInt global trade data platform

Classification Path of HS Code 290431 in Korea, Republic of

Section VI

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

Chapter 29

Organic chemicals

HS Code 2904

Sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated

HS Code 290431

Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride : Perfluorooctane sulphonic acid

HS Code 2904310000

Perfluorooctanesulfonic acid 과불화옥탄술폰산

Korea, Republic of Tariff Classification: Harmonized System of Korea (HSK)

In Korea, Republic of, HS 290431 is classified under the Harmonized System of Korea (관세·통계통합품목분류표) — a 10-digit national extension of the WCO 6-digit Harmonized System.

Tariff schedule Harmonized System of Korea (HSK)

Local name 관세·통계통합품목분류표

Digits 10

Official source https://www.customs.go.kr/english/

You know what 290431 means. Now see 2026 latest real trade activity for Perfluorooctane Sulphonic Acid (PFOS) in Korea, Republic of.

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

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Top Trading Product of HS Code 2904

Top Korea, Republic of import Product Under HS Code 2904

1 290410: Derivatives containing only sulpho groups, their salts and ethyl esters $24.1M 2 290499: Other : Other $19.6M 3 290420: Derivatives containing only nitro or only nitroso groups $2.6M

Figures shown for 2025.

For more 2026 recent data, search for Korea, Republic of import trade records

Top Korea, Republic of export Product Under HS Code 2904

1 290410: Derivatives containing only sulpho groups, their salts and ethyl esters $17.7M 2 290420: Derivatives containing only nitro or only nitroso groups $3.2M 3 290499: Other : Other $2.1M

Figures shown for 2025.

For more 2026 recent data, search for Korea, Republic of export trade records

Related HS Code to Korea, Republic of Perfluorooctane Sulphonic Acid (PFOS) (290431)

HS Code 2904310000

Perfluorooctanesulfonic acid

HS Code 290410

Derivatives containing only sulpho groups, their salts and ethyl esters

HS Code 290420

Derivatives containing only nitro or only nitroso groups

HS Code 290432

Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride : Ammonium perfluorooctane sulphonate

HS Code 290433

Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride : Lithium perfluorooctane sulphonate

HS Code 290434

Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride : Potassium perfluorooctane sulphonate

HS Code 290435

Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride : Other salts of perfluorooctane sulphonic acid

HS Code 290436

Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride : Perfluorooctane sulphonyl fluoride

HS Code 290491

Other : Trichloronitromethane (chloropicrin)

HS Code 290499

Other : Other

Frequently Asked Questions

What is HS code 290431 in Korea, Republic of?

HS code 290431 covers Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride : Perfluorooctane sulphonic acid in Korea, Republic of. It sits in Chapter 29 (Organic chemicals), Heading 2904 of the Harmonized System, and is classified under HSK.

Is HS code 290431 the same across all countries?

What system does Korea, Republic of use to classify HS code 290431?

Where can I officially look up HS code 290431 in Korea, Republic of?