Japan HS Code

HS Code 381231: Antioxidising preparations and other compound stabilisers for rubber or plastics : Mixtures of oligomers of 2,2,4trimethyl1,2dihydroquinoline (TMQ) in Japan

Q: Is HS code 381231 the same across all countries?

Yes — up to the 6-digit level, HS code 381231 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 381231?

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 381231 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 381231 in Japan

Under Japan's Customs Tariff Schedules of Japan (実行関税率表), HS Code 381231 is the WCO Harmonized System subheading for Antioxidising preparations and other compound stabilisers for rubber or plastics : Mixtures of oligomers of 2,2,4trimethyl1,2dihydroquinoline (TMQ). This is the most detailed internationally standardized level; Japan extends classifications to 9 digits under its national tariff system. 381231 belongs to Section VI: Products of the chemical or allied industries, Chapter 38: Miscellaneous chemical products, Heading 3812: Prepared rubber accelerators; compound plasticisers for rubber or plastics, not elsewhere specified or included; antioxidising preparations and other compound stabilisers for rubber or plastics.

Explore more 2026 Latest Japan import export trade data and shipment records for HS Code TMQ Rubber Stabilisers on TradeInt global trade data platform

Classification Path of HS Code 381231 in Japan

Section VI

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

Chapter 38

Miscellaneous chemical products

HS Code 3812

Prepared rubber accelerators; compound plasticisers for rubber or plastics, not elsewhere specified or included; antioxidising preparations and other compound stabilisers for rubber or plastics

HS Code 381231

Antioxidising preparations and other compound stabilisers for rubber or plastics : Mixtures of oligomers of 2,2,4trimethyl1,2dihydroquinoline (TMQ)

HS Code 381231000

Prepared rubber accelerators; compound plasticisers for rubber or plastics, not elsewhere specified or included; anti-oxidising preparations and other compound stabilisers for rubber or plastics > -- Mixtures of oligomers of 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ) 調製したゴム加硫促進剤、ゴム用又はプラスチック用の複合した可塑剤（他の項に該当するものを除く。）及びゴム用又はプラスチック用の調製した老化防止剤その他の複合した安定剤 > －－ 2,2,4-トリメチル-1,2-ジヒドロキノリン（TMQ）のオリゴマーの混合物

HS Code 381231100

HS Code 381231900

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

In Japan, HS 381231 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 381231 means. Now see 2026 latest real trade activity for TMQ Rubber Stabilisers 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 3812

Top Japan import Product Under HS Code 3812

1 381239: Antioxidising preparations and other compound stabilisers for rubber or plastics : Other $61.8M 2 381220: Compound plasticisers for rubber or plastics $25.9M 3 381231: Antioxidising preparations and other compound stabilisers for rubber or plastics : Mixtures of oligomers of 2,2,4trimethyl1,2dihydroquinoline (TMQ) $18.3M

Figures shown for 2025.

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

Top Japan export Product Under HS Code 3812

1 381239: Antioxidising preparations and other compound stabilisers for rubber or plastics : Other $57.1M 2 381210: Prepared rubber accelerators $23.0M 3 381220: Compound plasticisers for rubber or plastics $4.2M

Figures shown for 2025.

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

Related HS Code to Japan TMQ Rubber Stabilisers (381231)

Prepared rubber accelerators

HS Code 381220

Compound plasticisers for rubber or plastics

HS Code 381239

Antioxidising preparations and other compound stabilisers for rubber or plastics : Other

HS Code 380110

Artificial graphite

HS Code 380120

Colloidal or semicolloidal graphite

HS Code 380130

Carbonaceous pastes for electrodes and similar pastes for furnace linings

HS Code 380190

Other

Frequently Asked Questions

What is HS code 381231 in Japan?

HS code 381231 covers Antioxidising preparations and other compound stabilisers for rubber or plastics : Mixtures of oligomers of 2,2,4trimethyl1,2dihydroquinoline (TMQ) in Japan. It sits in Chapter 38 (Miscellaneous chemical products), Heading 3812 of the Harmonized System, and is classified under Japan HS / Statistical Code.

Is HS code 381231 the same across all countries?

What system does Japan use to classify HS code 381231?

Where can I officially look up HS code 381231 in Japan?