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Customs code · HS subheading 2918 99

Final code reached

Other carboxylic acids with additional 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 covers carboxylic acids that have oxygen-containing groups in addition to the carboxylic acid group, including their anhydrides, halides, peroxides, peroxyacids and halogen-, sulfo-, nitro- or nitroso derivatives. It excludes products whose only other oxygen-containing groups are alcohol, phenol, aldehyde or ketone groups, as well as the specifically named products and substances.

See the official tariff text

Official tariff text

Carboxylic acids with additional oxygen function, their anhydrides, halides, peroxides and peroxyacids and their halogenated, sulphonated, nitrated or nitrosated derivatives (excl. only with alcohol, phenol, aldehyde or ketone function, and 2,6-dimethoxybenzoic acid, dicamba [ISO], sodium phenoxyacetate, and 2,4,5-T [ISO] [2,4,5-trichlorophenoxyacetic acid] and its salts and esters)

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 99 90.

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 lines1 Norwegian line

29.18.9900 Other

Norwegian tariff data checked Sept. 13, 2026.

Great Britain

The rate depends on the line.

  • Their lines19 British lines
  • EU originDuty free

2918 99 90 13 3-Methoxy-2-methylbenzoyl chloride (CAS RN 24487-91-0)

Northern Ireland follows other rules.

UK tariff data checked Sept. 13, 2026.

United States

6.5% or 15.0%

Depends on a question

  • Their lines13 US lines
  • Entry dateSept. 17, 2026

2918.99.05.00 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 1 Norwegian line

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.

  • 29.18.9900

    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 99 90 13

    3-Methoxy-2-methylbenzoyl chloride (CAS RN 24487-91-0)

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

  • 2918 99 90 15

    Ethyl 2,3-epoxy-3-phenylbutyrate (CAS RN 77-83-8)

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

  • 2918 99 90 18

    Ethyl 2-hydroxy-2-(4-phenoxyphenyl)propanoate (CAS RN 132584-17-9)

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

  • 2918 99 90 25

    Methyl (E)-3-methoxy-2-(2-chloromethylphenyl)-2-propenoate (CAS RN 117428-51-0)

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

  • 2918 99 90 27

    Ethyl 3-ethoxypropionate (CAS RN 763-69-9)

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

  • 2918 99 90 35

    p-Anisic acid (CAS RN 100-09-4)

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

  • 2918 99 90 38

    Diclofop-methyl (ISO) (CAS RN 51338-27-3)

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

  • 2918 99 90 40

    trans-4-Hydroxy-3-methoxycinnamic acid (CAS RN 1135-24-6)

    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 99 90 45

    4-Methylcatechol dimethyl acetate (CAS RN 52589-39-6)

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

  • 2918 99 90 48

    2-Bromo-5-methoxybenzoic acid (CAS RN 22921-68-2) 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 99 90 50

    Methyl 3,4,5-trimethoxybenzoate (CAS RN 1916-07-0)

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

  • 2918 99 90 58

    2,4-D (ISO) (CAS RN 94-75-7) 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 99 90 60

    3,4,5-Trimethoxybenzoic acid (CAS RN 118-41-2)

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

  • 2918 99 90 63

    2-methyl-3-phenyloxirane-2-carboxylic acid (BMK glycidic acid) CAS No. 25547-51-7

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

  • 2918 99 90 67

    Allyl-(3-methylbutoxy)acetate (CAS RN 67634-00-8) 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 99 90 73

    Methyl (2R)-2-(4-hydroxyphenoxy)propionate (CAS RN 96562-58-2) with a purity by weight of 97 % or more

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

  • 2918 99 90 78

    3,4-Epoxycyclohexylmethyl-3',4'-epoxycyclohexane carboxylate (CAS RN 2386-87-0) with a purity by weight of 91 % or more

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

  • 2918 99 90 85

    Trinexapac-Ethyl (ISO) (CAS RN 95266-40-3) with a purity by weight of 96 % or more

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

  • 2918 99 90 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 13 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.

  • 2918.99.05.00

    Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Other, Aromatic, p-Anisic acid; Clofibrate; and 3-Phenoxybenzoic acid

    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

  • 2918.99.06.00

    Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Other, Aromatic, 1-Hydroxy-6-octadecyloxy-2-naphthalene- carboxylic acid; and 1-Hydroxy-6-docosyloxy-2-naphthalene- carboxylic acid

    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

  • 2918.99.14.00

    Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Other, Aromatic, 2-(4-Chloro-2-methylphenoxy)propionic acid and its salts

    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

  • 2918.99.18.00

    Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Other, Aromatic, Other, Pesticides, 4-(4-Chloro-2-methylphenoxy) butyric acid;p-Chlorophenoxyacetic acid; and 2-(2,4-Dichlorophenoxy) propionic acid

    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

  • 2918.99.20.10

    Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Other, Aromatic, Other, Pesticides, Other, 2,4-Dichlorophenoxyacetic acid, its salts and esters

    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

  • 2918.99.20.15

    Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Other, Aromatic, Other, Pesticides, Other, 2-Methyl-4-chlorophenoxyacetic acid

    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

  • 2918.99.20.50

    Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Other, Aromatic, Other, Pesticides, 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

  • 2918.99.30.00

    Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Other, Aromatic, Other, Drugs

    General rate
    6.5%
    From the EU
    6.5% or 15.0% Depends on a question US headings applied: 9903.04.62 Section 232 pharmaceuticals, Proclamation 11020 of 2 April 2026 (91 FR 18183) clauses (3)(c), (4), (5) and (7), heading 9903.04.62 of subchapter III of chapter 99 with U.S. note 40(c) and (f): the rate for patented pharmaceuticals and associated ingredients shall be 15 percent for products of the European Union, the sum of the column 1 duty rate and the additional duty being that rate; generic pharmaceuticals are not subject to tariffs pursuant to section 232 at this time; effective 31 July 2026 for the companies listed in Annex III and 29 September 2026 for other companies
Show all 13 lines

  • 2918.99.35.00

    Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Other, Aromatic, Other, Odoriferous or flavoring compounds

    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

  • 2918.99.43.10

    Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Other, Aromatic, Other, Products described in additional U.S. note 3 to section VI, 2-Methyl-3-phenyloxirane-2-carboxylic acid (P-2-P methyl glycidic acid), its salts and esters

    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

  • 2918.99.43.50

    Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Other, 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

  • 2918.99.47.00

    Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Other, 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

  • 2918.99.50.00

    Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Other

    General rate
    4%
    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 99 90 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

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).

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

Restrictions and paperwork

Important

Import restrictions are recorded for goods originating in:

  • Ukraine
  • Belarus
  • Russian Federation
  • 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 5 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
  • The prohibitions defined in article 1aa paragraph 1 of Council Regulation (EC) No 765/2006 do not apply (see contractual exemptions in article 1aa paragraph 2b)
  • The prohibitions defined in article 1aa.1 of Council Regulation (EC) No 765/2006 do not apply (see exemptions in article 1aa.2a)
  • The prohibitions defined in article 4 paragraph 1 of Council Regulation (EU) No 833/2014 do not apply (see exemptions in article 4 paragraph 2)

Product controls and permits 4 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
  • Compliance with the REACH restrictions defined in Column 2 of Annex XVII of Regulation (EC) No 1907/2006
  • Exemption from REACH restrictions by virtue of Article 67(1) and 67(2) of Regulation (EC) No 1907/2006
  • Substance/mixture not subjected to the provisions of Regulation (EC) No 1907/2006 (Annex XVII)
  • Import authorisation (precursors) issued by the competent authorities of the Member State where the importer is established

Statements that the goods are outside a rule's scope 1 condition

Some conditions are statements that a rule does not cover the goods, for example that the product is not on a controlled list.

Show the EU's own wording for this condition
  • Goods other than those described in the Common Military List of the European Union
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 99
  5. 2918 99 90
Show the steps

Compare with the codes next to it.

Compare the sibling codes at this level before you settle on this one.

Classification decides the rate here: from duty free to 6.5%.

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.