Japan HS Code

HS Code 381111: Antiknock preparations : Based on lead compounds in Japan

Q: Is HS code 381111 the same across all countries?

Yes — up to the 6-digit level, HS code 381111 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 381111?

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 381111 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 381111 in Japan

Under Japan's Customs Tariff Schedules of Japan (実行関税率表), HS Code 381111 is the WCO Harmonized System subheading for Antiknock preparations : Based on lead compounds. This is the most detailed internationally standardized level; Japan extends classifications to 9 digits under its national tariff system. 381111 belongs to Section VI: Products of the chemical or allied industries, Chapter 38: Miscellaneous chemical products, Heading 3811: Antiknock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anticorrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils.

Explore more 2026 Latest Japan import export trade data and shipment records for HS Code Leaded Anti-Knock Additives on TradeInt global trade data platform

Classification Path of HS Code 381111 in Japan

Section VI

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

Chapter 38

Miscellaneous chemical products

HS Code 3811

Antiknock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anticorrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils

HS Code 381111

Antiknock preparations : Based on lead compounds

HS Code 381111000

Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils. > Based on lead compounds アンチノック剤、酸化防止剤、ガム化防止剤、粘度指数向上剤、腐食防止剤その他の調製添加剤（鉱物油（ガソリンを含む。）用又は鉱物油と同じ目的に使用するその他の液体用のものに限る。） > －－鉛化合物をもととしたもの

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

In Japan, HS 381111 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 381111 means. Now see 2026 latest real trade activity for Leaded Anti-Knock Additives 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 3811

Top Japan import Product Under HS Code 3811

1 381121: Additives for lubricating oils : Containing petroleum oils or oils obtained from bituminous minerals $347.3M 2 381190: Other $42.9M 3 381129: Additives for lubricating oils : Other $19.6M

Figures shown for 2025.

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

Top Japan export Product Under HS Code 3811

1 381121: Additives for lubricating oils : Containing petroleum oils or oils obtained from bituminous minerals $150.2M 2 381190: Other $54.1M 3 381129: Additives for lubricating oils : Other $20.7M

Figures shown for 2025.

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

Related HS Code to Japan Leaded Anti-Knock Additives (381111)

HS Code 381111000

HS Code 381119

Antiknock preparations : Other

HS Code 381121

Additives for lubricating oils : Containing petroleum oils or oils obtained from bituminous minerals

HS Code 381129

Additives for lubricating oils : Other

Colloidal or semicolloidal graphite

HS Code 380130

Carbonaceous pastes for electrodes and similar pastes for furnace linings

Frequently Asked Questions

What is HS code 381111 in Japan?

HS code 381111 covers Antiknock preparations : Based on lead compounds in Japan. It sits in Chapter 38 (Miscellaneous chemical products), Heading 3811 of the Harmonized System, and is classified under Japan HS / Statistical Code.

Is HS code 381111 the same across all countries?

What system does Japan use to classify HS code 381111?

Where can I officially look up HS code 381111 in Japan?