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Code 2920 90 · Heading 2920

Esters of inorganic non-metal acids and their salts or derivatives, excluding specified acid esters and mercury components

This code covers esters of inorganic acids of non-metals, their salts, and their halogen-, sulfo-, nitro- or nitroso-derivatives. It does not cover esters of hydrogen halides, phosphoric acid or thiophosphoric acid, their related salts or derivatives, or inorganic or organic mercury components.

For example

  • A sulfuric acid ester
  • A carbonic acid ester
See the official tariff text

Official tariff text

Esters of inorganic acids of non-metals and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives (excl. esters of hydrogen halides, phosphoric esters, phosphite esters, and thiophosphoric esters "phosphorothioates", their salts and their halogenated, sulphonated, nitrated or nitrosated derivatives, endosulfan "ISO" and inorganic or organic compounds of mercury)

How we got to this code

  1. VI
  2. 29
  3. 2920
  4. 2920 90
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Pick the description that best matches your product.

Import duty on the codes below: 6.5%

2 codes below this one

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See all 9 codes at this level

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

29.20.9000 Other

Norwegian tariff data checked Sept. 13, 2026.

Great Britain

The rate depends on the line.

  • Their lines21 British lines
  • EU originDuty free

2920 90 10 13 Tetraethyl orthocarbonate (CAS RN 78-09-1) with a purity by weight of 99 % or more

Northern Ireland follows other rules.

UK tariff data checked Sept. 13, 2026.

United States

10.0%

Estimated from published US measures

  • Their lines4 US lines
  • Entry dateSept. 17, 2026

2920.90.10.00 Esters of other inorganic acids of nonmetals (excluding esters of hydrogen halides)

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.

  • 29.20.9000

    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 21 British lines

Selling to Great Britain

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

  • 2920 90 10 13

    Tetraethyl orthocarbonate (CAS RN 78-09-1) 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.

  • 2920 90 10 20

    Diallyl 2,2'-oxydiethyl dicarbonate (CAS RN 142-22-3)

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

  • 2920 90 10 23

    1,3,2-Dioxathiolane 2,2-dioxide (CAS RN 1072-53-3) 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.

  • 2920 90 10 33

    Ethyl methyl carbonate (CAS RN 623-53-0) 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.

  • 2920 90 10 40

    Dimethyl carbonate (CAS RN 616-38-6)

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

  • 2920 90 10 45

    Ethylene carbonate (CAS RN 96-49-1) 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.

  • 2920 90 10 50

    Di-tert-butyl dicarbonate (CAS RN 24424-99-5)

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

  • 2920 90 10 55

    Vinylene carbonate (CAS RN 872-36-6) with a purity by weight of 99,9 % or more

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.
Show all 21 lines

  • 2920 90 10 65

    Vinyl ethylene carbonate (CAS RN 4427-96-7) 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.

  • 2920 90 10 75

    Dimethyl Sulphate (CAS RN 77-78-1) with a purity of at least 99 %

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

  • 2920 90 10 85

    Diethyl carbonate (CAS RN 105-58-8) with a purity by weight of 99,9 % or more

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

  • 2920 90 10 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.

  • 2920 90 70 10

    Tris(2-propylheptyl) borate (CAS RN 1488321-95-4) with a purity by weight of 90 % or more

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

  • 2920 90 70 15

    α-endosulfan (CAS 959-98-8)

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

  • 2920 90 70 20

    Diethyl phosphorochloridate (CAS RN 814-49-3)

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

  • 2920 90 70 25

    endosulfan II; β-endosulfan (CAS 33213-65-9)

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

  • 2920 90 70 35

    Triisopropyl borate (CAS RN 5419-55-6) 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.

  • 2920 90 70 60

    Bis(neopentylglycolato)diboron (CAS RN 201733-56-4)

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

  • 2920 90 70 70

    4,4,5,5-Tetramethyl-1,3,2-dioxaborolane (CAS RN 25015-63-8) with a purity by weight of 97 % or more, containing not more than 1 % of the stabiliser triethylamine (CAS RN 121-44-8)

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

  • 2920 90 70 80

    Bis(pinacolato)diboron (CAS RN 73183-34-3)

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

  • 2920 90 70 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 4 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.

  • 2920.90.10.00

    Esters of other inorganic acids of nonmetals (excluding esters of hydrogen halides) and their salts; their halogenated, sulfonated, nitrated or nitrosated derivatives, Other, Aromatic, Pesticides

    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

  • 2920.90.20.00

    Esters of other inorganic acids of nonmetals (excluding esters of hydrogen halides) and their salts; 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

  • 2920.90.51.10

    Esters of other inorganic acids of nonmetals (excluding esters of hydrogen halides) and their salts; their halogenated, sulfonated, nitrated or nitrosated derivatives, Other, Ethylene carbonate (1,3-dioxolan-2-one)

    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

  • 2920.90.51.50

    Esters of other inorganic acids of nonmetals (excluding esters of hydrogen halides) and their salts; their halogenated, sulfonated, nitrated or nitrosated 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.

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.