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

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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)

The path to this code

Every code is reached through these choices, one level at a time.

Step 4 of 4

Step 1 · Section VI Products of the chemical or allied industries
Is it an inorganic or organic chemical; a pharmaceutical product; a fertilizer; a tanning or dye extract, pigment, paint, varnish, filler or printing ink; an essential oil, perfume, cosmetic or toilet product; soap, a surface-active, washing, cleaning, polishing or wax product; a protein, modified starch, glue or enzyme; an explosive, pyrotechnic article, match or other specified combustible material; a photographic or cinematographic product; or another chemical product?
✓
Step 2 · Chapter 29 Organic chemicals 2 of 11 chapters in section VI
What type of organic chemical is it—for example, a hydrocarbon, alcohol, acid, nitrogen compound, sulfur compound, heterocyclic compound, vitamin, hormone, glycoside, plant alkaloid, sugar, antibiotic or another listed organic compound?
✓
Step 3 · Heading 2920 Esters of inorganic acids of non-metals and their s… 20 of 42 headings under chapter 29
Which type is the product: parathion or methyl parathion; a thiophosphoric-acid ester or related salt or derivative; dimethyl, diethyl, trimethyl or triethyl phosphite; another phosphite ester, salt or derivative; endosulfan; or another product in this group?
✓
Step 4 · Subheading 2920 90 Esters of inorganic acids of non-metals and their s… 9 of 9 subheadings under heading 2920
Is it an ester of sulfuric or carbonic acid, or its salt or halogen-, sulfo-, nitro- or nitroso-derivative?

Full 8-digit codes

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2 codes below this one

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2920 11 Parathion "ISO" and parathion-methyl "ISO" "methyl-parathion" 6.5%
2920 19 Thiophosphoric esters "phosphorothioates" and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives (excl. parathion [ISO] and parathion-methyl [ISO] [methyl-parathion]) 6.5%
2920 21 Dimethyl phosphite 6.5%
2920 22 Diethyl phosphite 6.5%
2920 23 Trimethyl phosphite 6.5%
2920 24 Triethyl phosphite 6.5%
2920 29 Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives (excl. dimethyl, diethyl, trimethyl and triethyl phosphites) 6.5%
2920 30 Endosulfan "ISO" 6.5%
2920 90 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) you are here 6.5%

Export to Norway

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

29.20.9000

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.

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 v4.0.1576, 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).

Check the neighbouring codes

The codes just before and after this one, in case a nearby group fits better.

See all 9 codes at this level

Previous code 2920 30

Endosulfan "ISO"

you are here 2920 90

Esters of inorganic acids of non-metals and their salts; their haloge…

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.