Japan HS Code

HS Code 391231: Cellulose ethers : Carboxymethylcellulose and its salts in Japan

Q: Is HS code 391231 the same across all countries?

Yes — up to the 6-digit level, HS code 391231 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 391231?

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 391231 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 391231 in Japan

Under Japan's Customs Tariff Schedules of Japan (実行関税率表), HS Code 391231 is the WCO Harmonized System subheading for Cellulose ethers : Carboxymethylcellulose and its salts. This is the most detailed internationally standardized level; Japan extends classifications to 9 digits under its national tariff system. 391231 belongs to Section VII: Plastics and articles thereof; rubber and articles thereof, Chapter 39: Plastics and articles thereof, Heading 3912: Cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms.

Explore more 2026 Latest Japan import export trade data and shipment records for HS Code Carboxymethyl Cellulose (CMC) on TradeInt global trade data platform

Classification Path of HS Code 391231 in Japan

Section VII

Chapters (39-40) Plastics and articles thereof; rubber and articles thereof

Chapter 39

Plastics and articles thereof

HS Code 3912

Cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms

HS Code 391231

Cellulose ethers : Carboxymethylcellulose and its salts

HS Code 391231000

Cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms. > Carboxymethylcellulose and its salts セルロース及びその化学的誘導体（一次製品に限るものとし、他の項に該当するものを除く。） > －－カルボキシメチルセルロース及びその塩

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

In Japan, HS 391231 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 391231 means. Now see 2026 latest real trade activity for Carboxymethyl Cellulose (CMC) in Japan.

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

Search 2026 Latest Japan Import Data Search 2026 Latest Japan Export Data

Top Trading Product of HS Code 3912

Top Japan import Product Under HS Code 3912

1 391290: Other $75.0M 2 391239: Cellulose ethers : Other $43.3M 3 391231: Cellulose ethers : Carboxymethylcellulose and its salts $26.8M

Figures shown for 2025.

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

Top Japan export Product Under HS Code 3912

1 391239: Cellulose ethers : Other $228.0M 2 391290: Other $123.4M 3 391231: Cellulose ethers : Carboxymethylcellulose and its salts $41.5M

Figures shown for 2025.

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

Related HS Code to Japan Carboxymethyl Cellulose (CMC) (391231)

HS Code 391231000

Cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms. > Carboxymethylcellulose and its salts

HS Code 391211

Cellulose acetates : Nonplasticised

HS Code 391212

Cellulose acetates : Plasticised

HS Code 391220

Cellulose nitrates (including collodions)

HS Code 391239

Cellulose ethers : Other

HS Code 391290

Other

HS Code 390110

Polyethylene having a specific gravity of less than 0,94

HS Code 390120

Polyethylene having a specific gravity of 0,94 or more

HS Code 390130

Ethylenevinyl acetate copolymers

HS Code 390140

Ethylenealphaolefins copolymers, having a specific gravity of less than 0,94

Frequently Asked Questions

What is HS code 391231 in Japan?

HS code 391231 covers Cellulose ethers : Carboxymethylcellulose and its salts in Japan. It sits in Chapter 39 (Plastics and articles thereof), Heading 3912 of the Harmonized System, and is classified under Japan HS / Statistical Code.

Is HS code 391231 the same across all countries?

What system does Japan use to classify HS code 391231?

Where can I officially look up HS code 391231 in Japan?