Norway
Duty free*
- Their lines2 Norwegian lines
29.17.3910 Acids, anhydrides and salts
Norwegian tariff data checked Sept. 13, 2026.
Customs code · HS subheading 2917 39
Final code reached
Halides, peroxides, peroxyacids and substituted 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 code covers aromatic compounds with several carboxylic acid groups, including their anhydrides, halides, peroxides, peroxyacids and halogen-, sulfo-, nitro- or nitroso-derivatives. It does not cover the specifically excluded products, including the products assigned to the two more specific codes in this group.
Official tariff text
Aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their halogenated, sulphonated, nitrated or nitrosated derivatives (excl. esters of orthophthalic acid, phthalic anhydride, terephthalic acid and its salts, dimethyl terephthalate, ester or anhydride of tetrabromophthalic acid, benzene-1,2,4-tricarboxylic acid, isophthaloyl dichloride containing by weight <= 0,8% of terephthaloyl dichloride, naphthalene-1,4,5,8-tetracarboxylic acid, tetrachlorophthalic anhydride, sodium 3,5-bis"methoxycarbonyl"benzenesulphonate and bis"2-ethylhexyl" benzene-1,4-dicarboxylate "DOTP")
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
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
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*
29.17.3910 Acids, anhydrides and salts
Norwegian tariff data checked Sept. 13, 2026.
Great Britain
6.0%*
2917 39 85 20 Dibutyl-1,4-benzenedicarboxylate (CAS RN 1962-75-0)
Northern Ireland follows other rules.
UK tariff data checked Sept. 13, 2026.
United States
10.0%†
Estimated from published US measures
2917.39.04.00 Polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids
The US importer of record files the entry.
US tariff data checked Sept. 16, 2026.
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.
29.17.3910
Acids, anhydrides and salts
29.17.3990
Other
Contains data from Norwegian Customs (data.toll.no), licensed under CC BY 4.0, adapted for display.
What UK customs charges when goods like these arrive in Great Britain.
All 8 UK lines under this code
They all have the same duty rates shown here.
These rates apply in Great Britain. Different rules may apply for goods entering Northern Ireland.
Contains public sector information licensed under the Open Government Licence v3.0.
Source: UK Department for Business and Trade (data.api.trade.gov.uk).
What US customs charges when goods like these arrive from the EU. The US importer of record files the entry and pays the duty.
2917.39.04.00
Polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives, Other, 1,2,4-Benzenetricarboxylic acid, 1,2-dianhydride (Trimellitic anhydride); Phthalic acid; and 4-Sulfo-1,8-naphthalic anhydride
2917.39.08.00
Polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives, Other, Naphthalic anhydride
2917.39.12.00
Polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives, Other, 4,4'-(Hexafluoroisopropylidene)bis(phthalic anhydride)
2917.39.15.00
Polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives, Other, Isophthalic acid
2917.39.17.00
Polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives, Other, Tetrabromophthalic anhydride
2917.39.20.00
Polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives, Other, Plasticizers
2917.39.30.00
Polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives, Other, Products described in additional U.S. note 3 to section VI
2917.39.70.00
Polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives, Aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives, Other
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
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.
On an EU import declaration
8 import lines
When these goods are imported into the EU, the declaration needs a 10-digit code. Under 2917 39 85 the EU tariff has 8 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.
2917 39 85 20
Dibutyl-1,4-benzenedicarboxylate (CAS RN 1962-75-0)
2917 39 85 25
Naphthalene-1,8-dicarboxylic anhydride (CAS RN 81-84-5)
2917 39 85 30
Benzene-1,2:4,5-tetracarboxylic dianhydride (CAS RN 89-32-7)
2917 39 85 45
3-(4-Chlorophenyl)glutaric acid (CAS RN 35271-74-0) with a purity by weight of 98 % or more
2917 39 85 50
1,4,5,8-Naphthalenetetracarboxylic acid-1,8-monoanhydride (CAS RN 52671-72-4)
2917 39 85 55
3-Nitrophthalic acid (CAS RN 603-11-2) with a purity by weight of 98 % or more
2917 39 85 60
Perylene-3,4:9,10-tetracarboxylic dianhydride(CAS RN 128-69-8)
2917 39 85 90
Other
Duty free*
No import line matches that search.
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
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
Preferential rates exist for goods originating in:
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 databaseImport restrictions are recorded for goods originating in:
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.
Sanctions and restricted regions 10 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.
One last classification check
Use this view if you are still unsure the code describes the product precisely.
Compare the sibling codes at this level before you settle on this one.
Worth comparing
Codes that sit close to this one, for when the material itself could be different.
That code concerns aromatic monocarboxylic acids and related derivatives, whereas this code concerns aromatic polycarboxylic acids and related derivatives.
That code specifically names tetrabromophthalic acid ester or anhydride, benzene-1,2,4-tricarboxylic acid and the other compounds listed there; this code covers the remaining products in the group.
That code is specifically for bis(2-ethylhexyl) benzene-1,4-dicarboxylate, known as DOTP; this code excludes DOTP.
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.
Create a free account to keep the customs codes you care about in one place, and come back to them whenever you need them.