Norway
Duty free*
- Their lines4 Norwegian lines
29.31.4901 Butyl methylphosphinate
Norwegian tariff data checked Sept. 13, 2026.
Customs code · HS subheading 2931 49
Final code reached
Other derivatives of non-halogenated organic phosphorus compounds
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 derivatives of non-halogenated organic phosphorus compounds that are not otherwise named in the listed product groups. The compound must be non-halogenated and be an organic–inorganic compound.
See the official tariff text
Official tariff text
Separate chemically defined non-halogenated organo-phosphorous derivatives, n.e.s.
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
The full EU export code is 2931 49 80.
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
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.
Great Britain
The rate depends on the line.
- Their lines11 British lines
- EU originDuty free*
2931 49 80 08 Sodium diisobutyldithiophosphinate (CAS RN 13360-78-6) in an aqueous solution
Northern Ireland follows other rules.
UK tariff data checked Sept. 13, 2026.
United States
10.0%†
Estimated from published US measures
- Their lines8 US lines
- Entry dateSept. 17, 2026
2931.49.00.05 Other organo-inorganic compounds, Non-halogenated organo-phosphorous derivatives
The US importer of record files the entry.
US tariff data checked Sept. 16, 2026.
See the 4 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.
-
29.31.4901
Butyl methylphosphinate
- Ordinary duty
- Duty free*
-
29.31.4902
Bis(1-methylpentyl) methylphosphonate
- Ordinary duty
- Duty free*
-
29.31.4903
Containing a phosphorus atom to which one methyl, ethyl, n-propyl or isopropyl group is bonded but no further carbon atoms
- Ordinary duty
- Duty free*
-
29.31.4909
Other
- Ordinary duty
- Duty free*
Contains data from Norwegian Customs (data.toll.no), licensed under CC BY 4.0, adapted for display.
See the 11 British lines
Selling to Great Britain
What UK customs charges when goods like these arrive in Great Britain.
-
2931 49 80 08
Sodium diisobutyldithiophosphinate (CAS RN 13360-78-6) in an aqueous solution
- Ordinary duty
- 6.0%*
- Goods of EU origin
- Duty free* You need documentation of EU preferential origin to use this rate.
-
2931 49 80 10
Triethyl phosphonoacetate (CAS RN 867-13-0) 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.
-
2931 49 80 13
Trioctylphosphine oxide (CAS RN 78-50-2)
- Ordinary duty
- 6.0%*
- Goods of EU origin
- Duty free* You need documentation of EU preferential origin to use this rate.
-
2931 49 80 20
Tetrabutylphosphonium acetate (CAS RN 30345-49-4) in the form of an aqueous solution, containing by weight 40 % or more but not more than 50 % of tetrabutylphosphonium acetate
- Ordinary duty
- 6.0%*
- Goods of EU origin
- Duty free* You need documentation of EU preferential origin to use this rate.
-
2931 49 80 25
(Z)-Prop-1-en-1-ylphosphonic acid (CAS RN 25383-06-6)
- Ordinary duty
- 6.0%*
- Goods of EU origin
- Duty free* You need documentation of EU preferential origin to use this rate.
-
2931 49 80 35
Ethyl phenyl(2,4,6-trimethylbenzoyl)phosphinate (CAS RN 84434-11-7)
- Ordinary duty
- 6.0%*
- Goods of EU origin
- Duty free* You need documentation of EU preferential origin to use this rate.
-
2931 49 80 38
N-(Phosphonomethyl)iminodiacetic acid (CAS RN 5994-61-6) containing by weight not more than 15 % of water, and with a dry weight purity 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.
-
2931 49 80 40
Tetrakis(hydroxymethyl)phosphonium chloride (CAS RN 124-64-1)
- Ordinary duty
- 6.0%*
- Goods of EU origin
- Duty free* You need documentation of EU preferential origin to use this rate.
Show all 11 lines
-
2931 49 80 55
3-(Hydroxyphenylphosphinoyl)propionic acid (CAS RN 14657-64-8)
- Ordinary duty
- 6.0%*
- Goods of EU origin
- Duty free* You need documentation of EU preferential origin to use this rate.
-
2931 49 80 60
alkyl phosphonic acids and their sodium salts
- Ordinary duty
- 6.0%*
- Goods of EU origin
- Duty free* You need documentation of EU preferential origin to use this rate.
-
2931 49 80 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.
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 8 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.
-
2931.49.00.05
Other organo-inorganic compounds, Non-halogenated organo-phosphorous derivatives, Other, O-Alkyl (≤C10, including cycloalkyl) N,N-dialkyl (methyl, ethyl, n-propyl or isopropyl) phosphoramidocyanidates
- 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
-
2931.49.00.08
Other organo-inorganic compounds, Non-halogenated organo-phosphorous derivatives, Other, [O-2-(Dialkyl (methyl, ethyl, n-propyl or isopropyl) amino)ethyl] hydrogen alkyl (methyl, ethyl, n-propyl or isopropyl) phosphonites and their O-alkyl (≤C10, including cycloalkyl) esters; alkylated or protonated salts thereof
- 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
-
2931.49.00.10
Other organo-inorganic compounds, Non-halogenated organo-phosphorous derivatives, Other, 2-Amino-4-[hydroxy(methyl)phosphonoyl] butanoic acid (glufosinate) and its salts and esters
- 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
-
2931.49.00.15
Other organo-inorganic compounds, Non-halogenated organo-phosphorous derivatives, Other, Butyl methylphosphinate
- 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
-
2931.49.00.20
Other organo-inorganic compounds, Non-halogenated organo-phosphorous derivatives, Other, N-(Phosphonomethyl) glycine (glyphosate) and its salts and esters
- 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
-
2931.49.00.25
Other organo-inorganic compounds, Non-halogenated organo-phosphorous derivatives, Other, Bis(1-methylpentyl) methylphosphonate
- 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
-
2931.49.00.55
Other organo-inorganic compounds, Non-halogenated organo-phosphorous derivatives, Other, Containing a phosphorus atom to which one methyl, ethyl, n-propyl or isopropyl group is bonded but no further carbon atoms
- 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
-
2931.49.00.80
Other organo-inorganic compounds, Non-halogenated organo-phosphorous 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
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
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.
- 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.
- Country of origin Trade agreements, sanctions and extra measures can change the treatment of the very same code.
- Current tariff measures Check today's rate, any restrictions or licences, and the quantity customs asks for, with Toldstyrelsen or TARIC.
On an EU import declaration
Pick the 10-digit line that matches the goods.
11 import lines
When these goods are imported into the EU, the declaration needs a 10-digit code. Under 2931 49 80 the EU tariff has 11 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.
- Match the whole wording A line is its own wording plus the grouping text above it. Read both before you settle on one.
-
2931 49 80 08
Sodium diisobutyldithiophosphinate (CAS RN 13360-78-6) in an aqueous solution
-
2931 49 80 10
Triethyl phosphonoacetate (CAS RN 867-13-0) with a purity by weight of 98 % or more
-
2931 49 80 13
Trioctylphosphine oxide (CAS RN 78-50-2)
-
2931 49 80 20
Tetrabutylphosphonium acetate (CAS RN 30345-49-4) in the form of an aqueous solution, containing by weight 40 % or more but not more than 50 % of tetrabutylphosphonium acetate
-
2931 49 80 25
(Z)-Prop-1-en-1-ylphosphonic acid (CAS RN 25383-06-6)
-
2931 49 80 35
Ethyl phenyl(2,4,6-trimethylbenzoyl)phosphinate (CAS RN 84434-11-7)
-
2931 49 80 38
N-(Phosphonomethyl)iminodiacetic acid (CAS RN 5994-61-6) containing by weight not more than 15 % of water, and with a dry weight purity of 97 % or more
-
2931 49 80 40
Tetrakis(hydroxymethyl)phosphonium chloride (CAS RN 124-64-1)
-
2931 49 80 55
3-(Hydroxyphenylphosphinoyl)propionic acid (CAS RN 14657-64-8)
-
2931 49 80 60
alkyl phosphonic acids and their sodium salts
-
2931 49 80 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.
This is the catch-all under 2931 49: it covers what the sibling codes below do not.
Within its parent group, this is for derivatives of non-halogenated organic phosphorus compounds that are left after the specifically named sibling products are excluded.
- 2931 49 10 Sodium 3-(trihydroxysilyl)propyl methylphosphonate
- 2931 49 20 Bis[(5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl] methylphosphonate
- 2931 49 30 Etidronic acid (INN) (1-hydroxyethane-1,1-diphosphonic acid) and its salts
- 2931 49 40 (Nitrilotrimethanediyl)tris(phosphonic acid), {ethane-1,2-diylbis[nitrilobis(methylene)]}tetrakis(phosphonic acid), [(bis{2-[bis(phosphonomethyl)amino]ethyl}amino)methyl]phosphonic acid, {hexane-1,6-diylbis[nitrilobis(methylene)]}tetrakis(phosphonic acid), {[(2-hydroxyethyl)imino]bis(methylene)}bis(phosphonic acid), and [(bis{6-[bis(phosphonomethyl)amino]hexyl}amino)methyl]phosphonic acid; salts thereof
- 2931 49 50 Bis(1-methylpentyl) methylphosphonate
- 2931 49 60 Butyl methylphosphinate
Rates, origin and documents
Read the signals first. Open only the ones you want to check.
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
Extra duty on goods from some countries
First
Trade-defence measures, such as anti-dumping duty, may apply to goods originating in:
- China
- any country except China
The duty depends on the producer or exporter, so two shipments of the same goods can be charged differently.
This is recorded on a more detailed code below this one, so it may not cover your goods. See the import lines under this code
Check this code in the official EU TARIC database
Lower duty for goods from some countries
Possible
Preferential rates exist for goods originating in:
- San Marino
- Comoros (excluding Mayotte), Madagascar, Mauritius, Seychelles and dependencies and Zimbabwe
- Botswana, Eswatini, Lesotho, Mozambique and Namibia
- Ivory Coast
- Cameroon
- Fiji
- United Kingdom
- Georgia
- +46 origins
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 - General arrangements except India; 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 database
Restrictions and paperwork
Important
Import restrictions are recorded for goods originating in:
- Ukraine
- Belarus
- Russian Federation
- any country
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.
Show the EU's own wording for these conditions
- Movement certificate EUR.1
- Invoice declaration or origin declaration made out by any exporter on invoice or any other commercial document
Sanctions and restricted regions 13 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.
Show the EU's own wording for these conditions
- 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 1ra paragraph 1 of Council Regulation (EU) No 765/2006 do not apply (see exemptions in article 1ra paragraph 4)
- The prohibitions defined in article 1ra paragraph 1 of Council Regulation (EU) No 765/2006 do not apply (see exemptions in article 1ra paragraph 3)
- Goods entered the territory of the customs union of the EU and presented to customs authorities prior to the entry into force or to applicability date of the present sanction, whichever is latest (see Article 8f of Regulation (EU) No 765/2006)
- Import authorisation by virtue of article 1ra paragraph 10 of Council Regulation (EU) 765/2006
- The prohibitions defined in article 3i.1 of Council Regulation (EU) No 833/2014 do not apply (see exemptions in article 3i.3aa)
- Import authorisation by virtue of article 12b.2 of Council Regulation (EU) 833/2014
- Goods entered the territory of the customs union of the EU and presented to customs authorities prior to the entry into force or to applicability date of the present sanction, whichever is latest (see Article 12e of Regulation (EU) No 833/2014)
- Import authorisation by virtue of article 3i paragraph 3c of Council Regulation (EU) 833/2014
- 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)
- 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)
Product controls and permits 3 conditions
Depending on the exact product, customs may ask for a licence, a permit or a control certificate before the goods are released.
Show the EU's own wording for these conditions
- Exemption from REACH restrictions by virtue of Article 67(1) and 67(2) of Regulation (EC) No 1907/2006
- Compliance with the REACH restrictions defined in Column 2 of Annex XVII of Regulation (EC) No 1907/2006
- Substance/mixture not subjected to the provisions of Regulation (EC) No 1907/2006 (Annex XVII)
Statements that the goods are outside a rule's scope 1 condition
Some conditions are statements that a rule does not cover the goods, for example that the product is not on a controlled list.
Show the EU's own wording for this condition
- Goods other than those described in the Common Military List of the European Union
One last classification check
Check the path and the nearest alternatives.
Use this view if you are still unsure the code describes the product precisely.
Show the steps
Compare with the codes next to it.
Compare the sibling codes at this level before you settle on this one.
- another option 2931 49 10 Sodium 3-(trihydroxysilyl)propyl methylphosphonate 6.5%*
- another option 2931 49 20 Bis[(5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl] methylphosphonate 6.5%*
- another option 2931 49 30 Etidronic acid (INN) (1-hydroxyethane-1,1-diphosphonic acid) and its salts Duty free*
- another option 2931 49 40 (Nitrilotrimethanediyl)tris(phosphonic acid), {ethane-1,2-diylbis[nitrilobis(methylene)]}tetrakis(phosphonic acid), [(bis{2-[bis(phosphonomethyl)amino]ethyl}amino)methyl]phosphonic acid, {hexane-1,6-diylbis[nitrilobis(methylene)]}tetrakis(phosphonic acid), {[(2-hydroxyethyl)imino]bis(methylene)}bis(phosphonic acid), and [(bis{6-[bis(phosphonomethyl)amino]hexyl}amino)methyl]phosphonic acid; salts thereof 6.5%*
- another option 2931 49 50 Bis(1-methylpentyl) methylphosphonate 6.5%*
- another option 2931 49 60 Butyl methylphosphinate 6.5%*
-
you are here 2931 49 80 Separate chemically defined non-halogenated organo-phosphorous derivatives, n.e.s. Rate depends on the 10-digit line
Worth comparing
Codes that sit close to this one, for when the material itself could be different.
Similar products elsewhere in the tariff
- 2942 00 00 Separate chemically defined organic compounds, n.e.s. 6.5%*
- 2904 10 00 Derivatives of hydrocarbons containing only sulpho groups, their salts and ethyl esters 5.5%*
- 2904 20 00 Derivatives of hydrocarbons containing only nitro or nitroso groups 5.5%*
- 2932 91 00 Isosafrole 6.5%*
- 2932 19 00 Heterocyclic compounds with oxygen hetero-atom[s] only, containing an unfused furan ring, whether or not hydrogenated, in the structure (excl. tetrahydrofuran, 2-furaldehyde "furfuraldehyde", furfuryl alcohol, tetrahydrofurfuryl alcohol and sucralose) 6.5%*
Often confused with
-
2931 49 30
Etidronic acid (INN) (1-hydroxyethane-1,1-diphosphonic acid) and its salts
Duty free*
That code specifically names etidronic acid and its salts; this code covers other derivatives of non-halogenated organic phosphorus compounds.
-
2931 49 50
Bis(1-methylpentyl) methylphosphonate
6.5%*
That code specifically names bis(1-methylethyl) methylphosphonate; this code covers other derivatives of non-halogenated organic phosphorus compounds.
-
2931 49 60
Butyl methylphosphinate
6.5%*
That code specifically names butylmethylphosphinate; this code covers other derivatives of non-halogenated organic phosphorus compounds.
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.
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