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Code 2918 99 90 · 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. There is no further code choice to make below it.

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.

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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)

Classification complete

2918 99 90

Other carboxylic acids with additional oxygen-containing groups, and their derivatives

The spaces only make the code easier to read. Customs declarations normally use the unspaced form, 29189990.

See how EU customs ruled on similar products

One last check

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

Classification decides the rate here: from 0.0% to 6.5%.

Trade measures to be aware of

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.

  • Lower duty for goods from some countries

    Preferential rates exist for goods originating in San Marino; Economic Partnership Agreements; CARIFORUM except Haiti; Comoros (excluding Mayotte), Madagascar, Mauritius, Seychelles and dependencies and Zimbabwe; Botswana, Eswatini, Lesotho, Mozambique and Namibia; GSP-EBA (Special arrangement for the least-developed countries - Everything But Arms); OCTs (Overseas Countries and Territories); Ivory Coast; 51 more origins. 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

    Import restrictions are recorded for goods originating in Ukraine; Belarus; Russian Federation; any country.

    Document or certificate conditions are recorded. Customs may ask for:

    • Movement certificate EUR.1
    • Invoice declaration or origin declaration made out by any exporter on invoice or any other commercial document
    • 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)
    • Goods other than those described in the Common Military List of the European Union
    Show all 12 document conditions
    • 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)
    • 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
    Check this code in the official EU TARIC database

EU tariff measure data version 2026-08-03-tullverket.

Export to Norway

What Norwegian customs charges when goods like these are imported into Norway.

  • 29.18.9900

    Other

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

Norwegian tariff data version 1.5/1.2, last checked Aug. 9, 2026.

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

Export to the United Kingdom

What UK customs charges when goods like these are imported into the UK.

  • 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 v4.0.1576, last checked Aug. 9, 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).

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 SKAT or TARIC.

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 SKAT, 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.