Japan HS Code

HS Code 281511: Sodium hydroxide (caustic soda) : Solid in Japan

Q: Is HS code 281511 the same across all countries?

Yes — up to the 6-digit level, HS code 281511 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 281511?

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 281511 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 281511 in Japan

Under Japan's Customs Tariff Schedules of Japan (実行関税率表), HS Code 281511 is the WCO Harmonized System subheading for Sodium hydroxide (caustic soda) : Solid. This is the most detailed internationally standardized level; Japan extends classifications to 9 digits under its national tariff system. 281511 belongs to Section VI: Products of the chemical or allied industries, Chapter 28: Inorganic chemicals : organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes, Heading 2815: Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium.

Explore more 2026 Latest Japan import export trade data and shipment records for HS Code Solid Caustic Soda on TradeInt global trade data platform

Classification Path of HS Code 281511 in Japan

Section VI

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

Chapter 28

Inorganic chemicals : organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes

HS Code 2815

Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium

HS Code 281511

Sodium hydroxide (caustic soda) : Solid

HS Code 281511000

Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium 水酸化ナトリウム（かせいソーダ）、水酸化カリウム（かせいカリ）及びナトリウム又はカリウムの過酸化物 > －－固体のもの

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

In Japan, HS 281511 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 281511 means. Now see 2026 latest real trade activity for Solid Caustic Soda 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 2815

Top Japan import Product Under HS Code 2815

1 281520: Potassium hydroxide (caustic potash) $19.8M 2 281511: Sodium hydroxide (caustic soda) : Solid $8.9M 3 281512: Sodium hydroxide (caustic soda) : In aqueous solution (soda lye or liquid soda) $991.2K

Figures shown for 2025.

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

Top Japan export Product Under HS Code 2815

1 281512: Sodium hydroxide (caustic soda) : In aqueous solution (soda lye or liquid soda) $379.7M 2 281520: Potassium hydroxide (caustic potash) $13.3M 3 281511: Sodium hydroxide (caustic soda) : Solid $6.2M

Figures shown for 2025.

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

Related HS Code to Japan Solid Caustic Soda (281511)

HS Code 281511000

Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium

HS Code 281512

Sodium hydroxide (caustic soda) : In aqueous solution (soda lye or liquid soda)

HS Code 281520

Potassium hydroxide (caustic potash)

HS Code 281530

Peroxides of sodium or potassium

Sulphur, sublimed or precipitated; colloidal sulphur

HS Code 280300

Carbon (carbon blacks and other forms of carbon not elsewhere specified or included)

HS Code 280410

Hydrogen

Frequently Asked Questions

What is HS code 281511 in Japan?

HS code 281511 covers Sodium hydroxide (caustic soda) : Solid in Japan. It sits in Chapter 28 (Inorganic chemicals : organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes), Heading 2815 of the Harmonized System, and is classified under Japan HS / Statistical Code.

Is HS code 281511 the same across all countries?

What system does Japan use to classify HS code 281511?

Where can I officially look up HS code 281511 in Japan?