China HS Code

HS Code 290435: Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride : Other salts of perfluorooctane sulphonic acid in China

Q: Is HS code 290435 the same across all countries?

Yes — up to the 6-digit level, HS code 290435 is the same in every WCO member country. Beyond 6 digits, each country extends the code for national tariff and statistical use. China extends it under China HS / CCCHS.

Q: What system does China use to classify HS code 290435?

China classifies products under the Customs Import and Export Tariff of the People's Republic of China (China HS / CCCHS; locally 中华人民共和国海关进出口税则), which extends HS codes to 13 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 290435 in China?

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

What is HS Code 290435 in China

Under China's Customs Import and Export Tariff of the People's Republic of China (中华人民共和国海关进出口税则), HS Code 290435 is the WCO Harmonized System subheading for Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride : Other salts of perfluorooctane sulphonic acid. This is the most detailed internationally standardized level; China extends classifications to 13 digits under its national tariff system. 290435 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 China import export trade data and shipment records for HS Code Other PFOS Salts on TradeInt global trade data platform

Classification Path of HS Code 290435 in China

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 290435

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

HS Code 29043500

Other salts of perfluorooctane sulphonic acid 其他全氟辛基磺酸盐

China Tariff Classification: Customs Import and Export Tariff of the People's Republic of China (China HS / CCCHS)

In China, HS 290435 is classified under the Customs Import and Export Tariff of the People's Republic of China (中华人民共和国海关进出口税则) — a 13-digit national extension of the WCO 6-digit Harmonized System.

Tariff schedule Customs Import and Export Tariff of the People's Republic of China (China HS / CCCHS)

Local name 中华人民共和国海关进出口税则

Digits 13

Official source http://english.customs.gov.cn/

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Top Trading Product of HS Code 2904

Top China import Product Under HS Code 2904

1 290410: Derivatives containing only sulpho groups, their salts and ethyl esters $41.6M 2 290499: Other : Other $14.2M 3 290420: Derivatives containing only nitro or only nitroso groups $7.5M

Figures shown for 2025.

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

Top China export Product Under HS Code 2904

1 290499: Other : Other $133.2M 2 290410: Derivatives containing only sulpho groups, their salts and ethyl esters $73.9M 3 290420: Derivatives containing only nitro or only nitroso groups $68.3M

Figures shown for 2025.

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

Related HS Code to China Other PFOS Salts (290435)

HS Code 29043500

Other salts of 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 290431

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

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 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 290435 in China?

HS code 290435 covers Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride : Other salts of perfluorooctane sulphonic acid in China. It sits in Chapter 29 (Organic chemicals), Heading 2904 of the Harmonized System, and is classified under China HS / CCCHS.

Is HS code 290435 the same across all countries?

What system does China use to classify HS code 290435?

Where can I officially look up HS code 290435 in China?