Code 2918 29 · Heading 2918

Phenol-group carboxylic acids and specified derivatives, excluding salicylic acid and o-acetylsalicylic acid

This category covers carboxylic acids containing phenol groups but no other oxygen-containing groups. It also covers their anhydrides, halides, peroxides, peroxyacids and halo-, sulfo-, nitro- or nitroso-derivatives, except salicylic acid, o-acetylsalicylic acid and their salts and esters.

See the official tariff text

Official tariff text

Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their halogenated, sulphonated, nitrated or nitrosated derivatives (excl. salicylic acid and o-Acetylsalicylic acid, and their salts and esters)

How we got to this code

VI
29
2918
2918 29

Show the steps

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 2918 Carboxylic acids with additional oxygen function an… 18 of 42 headings under chapter 29
Which listed substance or group is it: lactic acid or its salts and esters; tartaric acid; salts or esters of tartaric acid; citric acid; salts or esters of citric acid; gluconic acid or its salts and esters; benzilic acid; chlorobenzilate; other carboxylic acids containing alcohol groups; salicylic acid or its salts; o-acetylsalicylic acid or its salts and esters; other salicylic acid esters or their salts; carboxylic acids containing aldehyde or ketone groups; 2,4,5-T or its salts and esters; or another product covered by this heading?
✓
Step 4 · Subheading 2918 29 Carboxylic acids with phenol function but without o… 13 of 16 subheadings under heading 2918
Is the product a carboxylic acid containing phenol groups but no other oxygen-containing groups, or one of its specified derivatives, excluding salicylic acid, o-acetylsalicylic acid and their salts and esters?

Pick the 8-digit code

Import duty on the codes below: No rate on file

Only one code below

2918 29 00

No rate on file

This subheading has one 8-digit code, so that is the code to use.

Open 2918 29 00 Save

Compare the sibling codes

See all 16 codes at this level

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

2918 11 Lactic acid, its salts and esters (excl. inorganic or organic compounds of mercury) 6.5%
2918 12 Tartaric acid 6.5%
2918 13 Salts and esters of tartaric acid 6.5%
2918 14 Citric acid 6.5%
2918 15 Salts and esters of citric acid (excl. inorganic or organic compounds of mercury) 6.5%
2918 16 Gluconic acid, its salts and esters No rate on file
2918 17 2,2-Diphenyl-2-hydroxyacetic acid "benzilic acid" 6.5%
2918 18 Chlorobenzilate "ISO" 6.5%
2918 19 Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives (excl. lactic acid, tartaric acid, citric acid, gluconic acid and their salts and esters, and chlorobenzilate [ISO]) 0.0–6.5%
2918 21 Salicylic acid and its salts (excl. inorganic or organic compounds of mercury) 6.5%
2918 22 o-Acetylsalicylic acid, its salts and esters 0.0%
2918 23 Esters of salicylic acid and their salts (excl. o-acetylsalicylic acid, its salts and esters) 6.5%
2918 29 Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their halogenated, sulphonated, nitrated or nitrosated derivatives (excl. salicylic acid and o-Acetylsalicylic acid, and their salts and esters) you are here No rate on file
2918 30 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 6.5%
2918 91 2,4,5-T "ISO" "2,4,5-trichlorophenoxyacetic acid", its salts and esters 6.5%
2918 99 Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives (excl. only with alcohol, phenol, aldehyde or ketone function, and 2,4,5-T [ISO] [2,4,5-trichlorophenoxyacetic acid] and its salts and esters) 0.0–6.5%

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

29.18.2910 Acids, anhydrides and salts

Norwegian tariff data checked Sept. 13, 2026.

Great Britain

The rate depends on the line.

Their lines8 British lines
EU originDuty free

2918 29 00 35 Propyl 3,4,5-trihydroxybenzoate (CAS RN 121-79-9)

Northern Ireland follows other rules.

UK tariff data checked Sept. 13, 2026.

United States

From 6.5% to 10.0%

Estimated from published US measures

Their lines10 US lines
Entry dateSept. 17, 2026

2918.29.04.00 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.

29.18.2910

Acids, anhydrides and salts

Ordinary duty

Duty free
29.18.2990

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 8 British lines

Selling to Great Britain

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

2918 29 00 35

Propyl 3,4,5-trihydroxybenzoate (CAS RN 121-79-9)

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2918 29 00 45

3-Hydroxy-2-naphthoic acid (CAS RN 92-70-6) 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 29 00 60

Methyl-, ethyl-, propyl- or butyl esters of 4-hydroxybenzoic acid or their sodium salts (CAS RN 35285-68-8, 99-76-3, 5026-62-0, 94-26-8, 94-13-3, 35285-69-9, 120-47-8, 36457-20-2 or 4247-02-3)

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2918 29 00 70

3,5-Diiodosalicylic acid (CAS RN 133-91-5)

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2918 29 00 75

Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate (CAS RN 2082-79-3) with - a sieve passing fraction at a mesh width of 500 μm of more than 99 % by weight and - a melting point of 49 °C or more, but not more than 54 °C, for use in the manufacture of PVC processing stabilizer-one packs based on powder mixtures (powders or press granulates)

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2918 29 00 80

Pentaerythritol tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate) (CAS RN 6683-19-8) with: - a sieve passing fraction at a mesh width of 250 μm of more than 75 % by weight and at a mesh width of 500 μm of more than 99 % by weight, and - a melting point of 110 °C or more, but not more than 125 °C, for use in the manufacture of PVC processing stabilizer-one packs based on powder mixtures (powders or press granulates)

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.
2918 29 00 85

Hexamethylene bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] (CAS RN 35074-77-2) 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 29 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 10 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.

2918.29.04.00

Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives, Other, 2,3-Cresotic acid; 2-Hydroxybenzoic acid, calcium salt; 1-Hydroxy-2-naphthoic acid; 2-Hydroxy-1-naphthoic acid; 1-Hydroxy-2-naphthoic acid, phenyl ester;α-Resorcylic acid;γ-Resorcylic acid; and 5-Sulfosalicylic 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
2918.29.06.00

Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives, Other, 1,6-Hexanediol bis(3,5-dibutyl-4-hydroxyphenyl)propionate)

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
2918.29.08.00

Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives, Other, m-Hydroxybenzoic 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
2918.29.20.00

Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives, Other, Gentisic acid; and Hydroxycinnamic acid and its salts

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
2918.29.22.00

Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives, Other, p-Hydroxybenzoic 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
2918.29.25.00

Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives, Other, 3-Hydroxy-2-naphthoic 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
2918.29.30.00

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

General rate

1%

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
2918.29.39.00

Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives, Other, 4,4-Bis(4-hydroxyphenyl) pentanoic acid; and 3,5,6-Trichlorosalicylic 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

Show all 10 lines

2918.29.65.00

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

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
2918.29.75.00

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

General rate

6.5%

From the EU

6.5% Estimated from published US measures US headings applied: 9903.05.86 U.S. note 52(b) to subchapter III of chapter 99, 91 FR 47318: as provided in heading 9903.05.86, the duties imposed by headings 9903.05.20 through 9903.05.84 shall not apply to articles classifiable in the listed provisions

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.