Japan HS Code

HS Code 290431: Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride : Perfluorooctane sulphonic acid in Japan

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. Japan extends it under Japan HS / Statistical Code.

Q: What system does Japan use to classify HS code 290431?

Japan classifies products under the Customs Tariff Schedules of Japan (Japan HS / Statistical Code; locally 実行関税率表), which extends HS codes to 9 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 Japan?

The official source is https://www.customs.go.jp/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 Japan

Under Japan's Customs Tariff Schedules of Japan (実行関税率表), 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; Japan extends classifications to 9 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 Japan 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 Japan

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 290431000

Sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated. > Perfluorooctane sulphonic acid 炭化水素のスルホン化誘導体、ニトロ化誘導体及びニトロソ化誘導体（ハロゲン化してあるかないかを問わない。） > －－ペルフルオロオクタンスルホン酸

Japan Tariff Classification: Customs Tariff Schedules of Japan (Japan HS / Statistical Code)

In Japan, HS 290431 is classified under the Customs Tariff Schedules of Japan (実行関税率表) — a 9-digit national extension of the WCO 6-digit Harmonized System.

Tariff schedule Customs Tariff Schedules of Japan (Japan HS / Statistical Code)

Local name 実行関税率表

Digits 9

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

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

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 Japan import Product Under HS Code 2904

1 290410: Derivatives containing only sulpho groups, their salts and ethyl esters $23.8M 2 290499: Other : Other $23.7M 3 290420: Derivatives containing only nitro or only nitroso groups $6.5M

Figures shown for 2025.

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

Top Japan export Product Under HS Code 2904

1 290410: Derivatives containing only sulpho groups, their salts and ethyl esters $23.5M 2 290499: Other : Other $2.1M 3 290420: Derivatives containing only nitro or only nitroso groups $38.5K

Figures shown for 2025.

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

Related HS Code to Japan Perfluorooctane Sulphonic Acid (PFOS) (290431)

HS Code 290431000

Sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated. > Perfluorooctane sulphonic 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 Japan?

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

Is HS code 290431 the same across all countries?

What system does Japan use to classify HS code 290431?

Where can I officially look up HS code 290431 in Japan?