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Customs code · HS subheading 2918 30

Final code reached

Carboxylic acids with an aldehyde or ketone group

But no other oxygen-containing groups, and their derivatives

This is a complete 8-digit customs code. Exports and Intrastat use it as it is. For an import into the EU, pick a 10-digit line below.

This code covers carboxylic acids that contain an aldehyde or ketone group but no other oxygen-containing groups. It also covers their anhydrides, halides, peroxides, peroxyacids and halogen-, sulfo-, nitro- or nitroso derivatives.

For example

  • Pyruvic acid, a carboxylic acid containing a ketone group and no other oxygen-containing groups
  • Glyoxylic acid, a carboxylic acid containing an aldehyde group and no other oxygen-containing groups
See the official tariff text

Official tariff text

Carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their halogenated, sulphonated, nitrated or nitrosated derivatives

You are seeing what applies when you export from the EU. Switch above if you import.

You are seeing what applies when you import into the EU. Switch above if you export.

Your answer for export

The full EU export code is 2918 30 00.

You do not pick a 10-digit EU import line for an export declaration or Intrastat. The destination classifies the goods under its own tariff.

8 digits, ready

Selling to Norway, Great Britain and the United States

What they charge on arrival.

Norway, Great Britain and the United States use their own tariff lines under the 6-digit HS code. The rates below are what their customs charge on goods arriving from the EU. Match the goods against each country's own wording before you rely on a rate.

Norway

Duty free

  • Their lines2 Norwegian lines

29.18.3010 Acids, anhydrides and salts

Norwegian tariff data checked Sept. 13, 2026.

Great Britain

The rate depends on the line.

  • Their lines19 British lines
  • EU originDuty free

2918 30 00 10 Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride (CAS RN 2421-28-5)

Northern Ireland follows other rules.

UK tariff data checked Sept. 13, 2026.

United States

10.0%

Estimated from published US measures

  • Their lines7 US lines
  • Entry dateSept. 17, 2026

2918.30.10.00 Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides

The US importer of record files the entry.

US tariff data checked Sept. 16, 2026.

See the 2 Norwegian lines

Selling to Norway

Norway splits the 6-digit category its own way, so these are Norway's own lines under it, not this EU code. Check your product against their wording; what Norwegian customs charges is shown per line.

  • 29.18.3010

    Acids, anhydrides and salts

    Ordinary duty
    Duty free

  • 29.18.3090

    Other

    Ordinary duty
    Duty free

Norwegian tariff data version 1.5/1.2, last checked Sept. 13, 2026.

Contains data from Norwegian Customs (data.toll.no), licensed under CC BY 4.0, adapted for display.

See the 19 British lines

Selling to Great Britain

What UK customs charges when goods like these arrive in Great Britain.

  • 2918 30 00 10

    Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride (CAS RN 2421-28-5)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2918 30 00 13

    Other than for use in the production of formaldehyde-free sulfur-based reducing agents (“FFSRAs”) and with an iron (Fe) content of ≥ 10 and ≤ 20 PPM (parts per million)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2918 30 00 14

    Other

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2918 30 00 17

    Ethyl alpha-phenylacetoacetate (EAPA) CAS No 5413-05-8

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2918 30 00 27

    Diethyl (phenylacetyl) propanedioate (DEPAPD) (CAS RN 20320-59-6)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2918 30 00 30

    Methyl-2-benzoylbenzoate (CAS RN 606-28-0)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2918 30 00 35

    3-Oxocyclobutane-1-carboxylic acid with a purity by weight of 98 % or more (CAS RN 23761-23-1)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2918 30 00 37

    Methyl alpha-phenylacetoacetate (MAPA) CAS No. 16648-44-5

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.
Show all 19 lines

  • 2918 30 00 43

    Ethyl 4-oxovalerate (CAS RN 539-88-8) with a purity by weight of 98 % or more

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2918 30 00 48

    Prohexadione-calcium (ISOM) (CAS RN 127277-53-6) with a purity by weight of 95 % or more

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2918 30 00 53

    2-(4-Chlorobenzoyl)benzoic acid (CAS RN 85-56-3) with a purity by weight of 99 % or more

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2918 30 00 55

    Methyl 3-oxo-pentanoate (CAS RN 30414-53-0) with a purity by weight of 98 % or more

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2918 30 00 60

    4-Oxovaleric acid (CAS RN 123-76-2)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2918 30 00 70

    2-​[4-​Chloro-​3-​(chlorosulphonyl)​benzoyl]​benzoic acid (CAS RN 68592-12-1)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2918 30 00 75

    Methyl 2-((1S,2R)-3-oxo-2-pentylcyclopentyl)acetate (CAS RN 151716-35-7) with a purity by weight of 99 % or more

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2918 30 00 80

    Methyl benzoylformate (CAS RN 15206-55-0)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2918 30 00 85

    2-Fluoro-5-formylbenzoic acid (CAS RN 550363-85-4) with a purity by weight of 98 % or more

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2918 30 00 87

    Ethyl acetoacetate (CAS RN 141-97-9) with a purity by weight of 98 % or more

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2918 30 00 90

    Other

    Ordinary duty
    Depends on the product details
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

These rates apply in Great Britain. Different rules may apply for goods entering Northern Ireland.

UK tariff data version v4.0.1599, last checked Sept. 13, 2026.

Contains public sector information licensed under the Open Government Licence v3.0.

Source: UK Department for Business and Trade (data.api.trade.gov.uk).

See the 7 US lines

Selling to the United States

What US customs charges when goods like these arrive from the EU. The US importer of record files the entry and pays the duty.

  • 2918.30.10.00

    Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives, Aromatic, 1-Formylphenylacetic acid, methyl ester

    General rate
    5.8%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2918.30.15.00

    Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives, Aromatic, 2-Chloro-4,5-difluoro-ß-oxobenzenepropanoic acid, ethyl ester; and Ethyl 2-keto-4-phenylbutanoate

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2918.30.25.10

    Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives, Aromatic, Other, Products described in additional U.S. note 3 to section VI, Methyl 3-oxo-2-phenylbutanoate (methyl alpha-phenylacetoacetate, MAPA)

    General rate
    6.5%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2918.30.25.50

    Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives, Aromatic, Other, Products described in additional U.S. note 3 to section VI, Other

    General rate
    6.5%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2918.30.30.00

    Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives, Aromatic, Other

    General rate
    6.5%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2918.30.70.00

    Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives, Other, Dimethyl acetyl succinate; Oxalacetic acid diethyl ester, sodium salt; 4,4,4-Trifluoro-3-oxobutanoic acid, ethyl ester; and 4,4,4-Trifluoro-3-oxobutanoic acid, methyl ester

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2918.30.90.00

    Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives, Other

    General rate
    3.7%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

Worked out for an entry on Sept. 17, 2026.

US tariff schedule 2026HTSRev19, last checked Sept. 16, 2026.

Last change we recorded: Revision 19 (2026), Sept. 16, 2026.

Anti-dumping and countervailing duties, US import taxes and customs fees are not included.

The descriptions above are the US tariff texts, which the United States publishes in English only.

Source: the US International Trade Commission's Harmonized Tariff Schedule (hts.usitc.gov), public domain, and the measures published in the Federal Register.

This is a planning estimate from the US Harmonized Tariff Schedule (revision shown) and the published Federal Register measures as of the date shown, for a shipment of EU origin. It is not a customs entry, legal advice or a broker's opinion, and tariffs.help is not a US-licensed customs broker. The US importer of record or their broker confirms the classification, origin, value and the duty due before filing.

Before you use the code

Check the facts that sit outside the code

The code can be right while what you pay still changes, because of where the goods come from, when they arrive, or extra EU measures.

Classify your own product, free Look up the current rates and rules
  1. The product and its form Check that your product really matches this description, including what it is made of and the form it arrives in.
  2. Country of origin Trade agreements, sanctions and extra measures can change the treatment of the very same code.
  3. Current tariff measures Check today's rate, any restrictions or licences, and the quantity customs asks for, with Toldstyrelsen or TARIC.

On an EU import declaration

Pick the 10-digit line that matches the goods.

19 import lines

When these goods are imported into the EU, the declaration needs a 10-digit code. Under 2918 30 00 the EU tariff has 19 lines, each with its own wording.

You or your customs agent pick the line whose wording fits the goods; the last line, "Other", covers what none of the specific wordings describe.

Some lines depend on what the goods will be used for and need customs authorisation; matching the wording alone does not give a lower rate.

  1. Match the whole wording A line is its own wording plus the grouping text above it. Read both before you settle on one.
  2. Check the intended use On some lines the lower rate belongs to what the goods will be used for, not to the goods alone.
  3. Confirm the authorisation Where the lower rate carries conditions, customs asks for an authorisation before it can be used.

A suspension is a lower rate the EU grants for specific products; whether your goods qualify depends on the line's wording and conditions.

Exports from the EU and Intrastat normally use the 8-digit code as it is.

EU tariff data of Sept. 13, 2026.

Rates, origin and documents

Read the signals first. Open only the ones you want to check.

Besides the ordinary duty, the EU records these kinds of measure against this code. They are listed as signals only: whether one applies to your goods can depend on where they come from, who produced them, the exact product and the documents you present. No amounts are worked out here.

Data of Sept. 1, 2026

Extra duty on goods from some countries

First

Trade-defence measures, such as anti-dumping duty, may apply to goods originating in:

  • China
  • any country except China
  • Türkiye

The duty depends on the producer or exporter, so two shipments of the same goods can be charged differently.

This is recorded on a more detailed code below this one, so it may not cover your goods. See the import lines under this code

Check this code in the official EU TARIC database

Lower duty for goods from some countries

Possible

Preferential rates exist for goods originating in:

  • San Marino
  • Comoros (excluding Mayotte), Madagascar, Mauritius, Seychelles and dependencies and Zimbabwe
  • Botswana, Eswatini, Lesotho, Mozambique and Namibia
  • Ivory Coast
  • Cameroon
  • Fiji
  • United Kingdom
  • Georgia
  • +46 origins

These rates apply to Economic Partnership Agreements; CARIFORUM except Haiti; GSP-EBA (Special arrangement for the least-developed countries - Everything But Arms); OCTs (Overseas Countries and Territories); GSP+ (incentive arrangement for sustainable development and good governance); GSP - General arrangements except India.

Whether you can use one depends on the origin rules for the goods and on the documentation you can show.

Check this code in the official EU TARIC database

A limited quantity at a lower rate

Check

A tariff quota is recorded for this code. This does not say whether any of the quota is still available. It covers goods originating in:

  • any country except Belarus and Russian Federation

This is recorded on a more detailed code below this one, so it may not cover your goods. See the import lines under this code

Check this code in the official EU TARIC database

Restrictions and paperwork

Important

Import restrictions are recorded for goods originating in:

  • Ukraine
  • China
  • any country

The EU records document conditions on this code. What customs may ask for depends on where the goods come from, exactly what the product is and the customs procedure.

Proof of origin 2 conditions

If you claim a lower rate for goods from a country the EU has a trade agreement with, customs asks for proof of origin, for example a EUR.1 certificate or an origin declaration.

Show the EU's own wording for these conditions
  • Movement certificate EUR.1
  • Invoice declaration or origin declaration made out by any exporter on invoice or any other commercial document

Sanctions and restricted regions 2 conditions

Some conditions come from EU sanctions rules. They matter when the goods are linked to a country or region the EU restricts trade with.

Show the EU's own wording for these conditions
  • Goods not originating from or destined to Crimea or Sevastopol (Articles 2 and 2b.1 of Council Regulation (EU) No 692/2014)
  • Goods not originating from or not destined for the non-government controlled areas of Ukraine in the oblasts of Donetsk, Kherson, Luhansk and Zaporizhzhia

Product controls and permits 2 conditions

Depending on the exact product, customs may ask for a licence, a permit or a control certificate before the goods are released.

Show the EU's own wording for these conditions
  • Authorisation to use a customs procedure with economic impact/end-use within the context of an anti-dumping/countervailing measure (Column 8c, Annex A of Delegated Regulation (EU) 2015/2446)
  • Import authorisation (precursors) issued by the competent authorities of the Member State where the importer is established
Check this code in the official EU TARIC database

EU tariff measure data of Sept. 1, 2026.

One last classification check

Check the path and the nearest alternatives.

Use this view if you are still unsure the code describes the product precisely.

How we got to this code

  1. VI
  2. 29
  3. 2918
  4. 2918 30
  5. 2918 30 00
Show the steps

Subheading 2918 30 has only this one 8-digit code, so there is no neighbour to compare with.

Worth comparing

Codes that sit close to this one, for when the material itself could be different.

Browse chapter 29

Similar products elsewhere in the tariff

Often confused with

Duty rates shown here are estimates, read from official EU / Danish, Norwegian and UK tariff data for orientation only. Confirm the current rate with Toldstyrelsen, TARIC, Norwegian Customs or the UK Online Trade Tariff before you file. The rate you pay can also depend on the country of origin. These are base customs duties only: import VAT, excise duties, anti-dumping duties and safeguard or quota measures are not included.