European Union tariff line 3911 90 99 23: Aqueous solution consisting of by weight 25 % or more, but not more than 40 % of a poly(isobutylene-maleic anhydride) modified with: -N,N-dimethylpropane-1,3-diamine, -a copolymer of ethylene oxide and propylene oxide, having aminopropyl and methoxy end-groups, -ethanol (CAS RN 497926-97-3)
Last updated
Key facts
- Tariff line
- 3911 90 99 23
- Covers
- Aqueous solution consisting of by weight 25 % or more, but not more than 40 % of a poly(isobutylene-maleic anhydride) modified with: -N,N-dimethylpropane-1,3-diamine, -a copolymer of ethylene oxide and propylene oxide, having aminopropyl and methoxy end-groups, -ethanol (CAS RN 497926-97-3)
- Duty (MFN)
- 6.5%
- Preferential rates
- From 0% (56 programmes or origins)
- Additional duties
- None recorded
- Restrictions
- None recorded
- Import VAT/GST in the European Union
- VAT 21%
- De minimis in the European Union
- Flat €3 duty up to €150; tax always charged
- Tariff
- European Union
- HS subheading
- 3911.90
Summary
In the European Union tariff, line 3911 90 99 23 covers aqueous solution consisting of by weight 25 % or more, but not more than 40 % of a poly(isobutylene-maleic anhydride) modified with: -N,N-dimethylpropane-1,3-diamine, -a copolymer of ethylene oxide and propylene oxide, having aminopropyl and methoxy end-groups, -ethanol (CAS RN 497926-97-3). The general (MFN) duty rate is 6.5%. It falls under HS subheading 3911.90 in heading 39.11 (chapter 39).
What this line covers
In the European Union tariff, line 3911 90 99 23 covers aqueous solution consisting of by weight 25 % or more, but not more than 40 % of a poly(isobutylene-maleic anhydride) modified with: -N,N-dimethylpropane-1,3-diamine, -a copolymer of ethylene oxide and propylene oxide, having aminopropyl and methoxy end-groups, -ethanol (CAS RN 497926-97-3).
Its legal text is “Aqueous solution consisting of by weight 25 % or more, but not more than 40 % of a poly(isobutylene-maleic anhydride) modified with: -N,N-dimethylpropane-1,3-diamine, -a copolymer of ethylene oxide and propylene oxide, having aminopropyl and methoxy end-groups, -ethanol (CAS RN 497926-97-3)”, read under “Other”, “Other”, “Other” and “Other”.
How it is structured
It falls under HS subheading 3911.90 in heading 39.11 (chapter 39). The first six digits are the Harmonized System code; the 4 digits after them are added by the European Union tariff.
- Chapter 39
- Plastics and articles thereof
- Heading 39.11
- Petroleum resins, coumarone-indene resins, polyterpenes, polysulphides, polysulphones and other products specified in note 3 to this chapter, not elsewhere specified or included, in primary forms
- Subheading 3911.90
- Other
- Within the subheading
- Other
- Within the subheading
- Other
- Within the subheading
- Other
- Line 3911 90 99 23
- Aqueous solution consisting of by weight 25 % or more, but not more than 40 % of a poly(isobutylene-maleic anhydride) modified with: -N,N-dimethylpropane-1,3-diamine, -a copolymer of ethylene oxide and propylene oxide, having aminopropyl and methoxy end-groups, -ethanol (CAS RN 497926-97-3)
Duty
The general (MFN) duty rate is 6.5%.
Duty-free entry applies to goods that qualify under 5 programmes, and to goods from 50 origins.
A preferential rate of 5.2% applies to goods from Mercosur.
| Preferential rate | Programme or origin |
|---|---|
| 0% | EU-Switzerland agreement: re-imported goods (1007) |
| 0% | CARIFORUM (1033) |
| 0% | Eastern and Southern Africa States (1034) |
| 0% | SADC EPA (1035) |
| 0% | Preferential origin in accordance with the Agreement in the form of an Exchange of Letters between the European Union and the Kingdom of Morocco on the amendment of Protocols 1 and 4 to the Euro-Mediterranean Agreement establishing an association between the European Communities and their Member St… (2000) |
| 0% | GSP-EBA (Special arrangement for the least-developed countries - Everything But Arms) (2005) |
| 0% | EEA - European Economic Area (2012) |
| 0% | GSP - General arrangements (2020) |
| 0% | GSP+ (incentive arrangement for sustainable development and good governance) (2027) |
| 0% | OCTs (Overseas Countries and Territories) (2080) |
| 0% | Central America (2200) |
| 0% | Albania (AL) |
| 0% | Bosnia and Herzegovina (BA) |
| 0% | Canada (CA) |
| 0% | Switzerland (CH) |
| 0% | Côte d'Ivoire (CI) |
| 0% | Chile (CL) |
| 0% | Cameroon (CM) |
| 0% | Colombia (CO) |
| 0% | Algeria (DZ) |
| 0% | Ecuador (EC) |
| 0% | Egypt (EG) |
| 0% | Fiji (FJ) |
| 0% | Faroe Islands (FO) |
| 0% | United Kingdom (GB) |
| 0% | Georgia (GE) |
| 0% | Ghana (GH) |
| 0% | Israel (IL) |
| 0% | Jordan (JO) |
| 0% | Japan (JP) |
| 0% | Kenya (KE) |
| 0% | South Korea (KR) |
| 0% | Lebanon (LB) |
| 0% | Morocco (MA) |
| 0% | Moldova (MD) |
| 0% | Montenegro (ME) |
| 0% | North Macedonia (MK) |
| 0% | Mexico (MX) |
| 0% | New Zealand (NZ) |
| 0% | Peru (PE) |
| 0% | Papua New Guinea (PG) |
| 0% | Palestine (PS) |
| 0% | Solomon Islands (SB) |
| 0% | Singapore (SG) |
| 0% | Syria (SY) |
| 0% | Tunisia (TN) |
| 0% | Ukraine (UA) |
| 0% | United States (US) |
| 0% | Vietnam (VN) |
| 0% | Samoa (WS) |
| 0% | a group of origins (TARIC area XC) (XC) |
| 0% | Kosovo (XK) |
| 0% | a group of origins (TARIC area XL) (XL) |
| 0% | Serbia (XS) |
| 0% | South Africa (ZA) |
| 5.2% | Mercosur (5500) |
Import VAT and de minimis in the European Union
The European Union charges VAT on imports at a standard rate of 21%.
From 1 July 2026 until 1 July 2028, consignments sold to buyers in the European Union worth up to €150 pay a flat customs duty of €3 per tariff classification in the consignment instead of the tariff rate. Import tax is charged whatever the value.
Other lines under 3911.90
- 3911 90 11 10Poly(oxy-1,4-phenylenesulphonyl-1,4-phenyleneoxy-1,4-phenyleneisopropylidene-1,4-phenylene) (CAS RN 25135-51-7 and CAS RN 25154-01-2), in one of the forms mentioned in note 6(b) to this chapter containing by weight not more than 20 % of additives
- 3911 90 11 90Other
- 3911 90 13 00Poly(thio-1,4-phenylene)
- 3911 90 19 15Polyetherimide of - 5,5′-[(isopropylidene)bis(4,1-phenylene)dioxy]bis(1,3-isobenzofurandione) and 1,3-benzenediamine whether or not as a copolymer with 3-aminopropyl terminated dimethylsilicones (CAS RN 61128-46-9 or 99904-16-2), or - 5,5′-[(isopropylidene)bis(4,1-phenylene)dioxy]bis(1,3-isobenzofurandione) and 1,4-benzenediamine (CAS RN 61128-47-0), or - 4,4′-[(isopropylidene)bis(4,1-phenylene)dioxy]bis(1,3-isobenzofurandione), 5,5′-[(isopropylidene)bis(4,1-phenylene)dioxy]bis(1,3-isobenzofurandione), 4,5′-[(isopropylidene)bis(4,1-phenylene)dioxy]bis(1,3-isobenzofurandione), pyromellitic dianhydride, 1,2-benzenediamine, 1,3-benzenediamine and 1,4-benzenediamine with phthalic anhydride endcaps (CAS RN 96557-46-9)
- 3911 90 19 25Polyamideimide of -4-Chloroformylphthalic anhydride and 4,4′-methylenedianiline (CAS RN 35463-82-2), or -4-Chloroformyphthalic anhydride, 4,4′-oxydianiline and 1,3-phenylenediamine (CAS RN 25928-85-2), containing by weight not more than 35 % of additives
- 3911 90 19 30Copolymer of ethyleneimine and ethyleneimine dithiocarbamate, in an aqueous solution of sodium hydroxide
- 3911 90 19 35Poly(oxy-1,4-phenylenesulfonyl-1,4-phenyleneoxy-4,4’-biphenylene) (CAS RNs 25608-64-4 and 25839-81-0) containing by weight not more than 20 % of additives
- 3911 90 19 40m- Xylene formaldehyde resin
- 3911 90 19 80Poly(oxy-1,4-phenylenesulfonyl-1,4-phenylene) (CAS RN 25608-63-3 and CAS RN 25667-42-9) containing by weight not more than 20 % of additives
- 3911 90 19 90Other
- 3911 90 92 00Copolymer of p-cresol and divinylbenzene, in the form of a solution in N,N-dimethylacetamide containing by weight 50 % or more of polymer; hydrogenated copolymers of vinyltoluene and α-methylstyrene
- 3911 90 99 10For cavity filling, for use in certain types of aircraft
- 3911 90 99 25Copolymer of vinyltoluene and α-methylstyrene
- 3911 90 99 35Alternated copolymer of ethylene and maleic anhydride (EMA)
- 3911 90 99 38Mixture containing by weight: -90 % (± 1 %) of 1,4:5,8- Dimethanonaphthalene, 2-ethylidene-1,2,3,4,4a,5,8,8a-octahydro-,polymer with 3a,4,7,7a- tetrahydro- 4,7-methano-1H-indene, hydrogenated (CAS RN 881025-72-5), and -10 % (± 1 %) of a hydrogenated styrene butadiene copolymer (CAS RN 66070-58-4)
- 3911 90 99 40Mixed calcium and sodium salt of a copolymer of maleic acid and methyl vinyl ether, having a calcium content of 9 % or more but not more than 16 % by weight
- 3911 90 99 43Copolymer of α-methylstyrene and styrene, having a softening point of more than 113 ºC
- 3911 90 99 45Copolymer of maleic acid and methyl vinyl ether
- 3911 90 99 48Mixture containing by weight: -90 % (± 1 %) of 1,4:5,8- Dimethanonaphthalene, 2-ethylidene-1,2,3,4,4a,5,8,8a-octahydro-,polymer with 3a,4,7,7a- tetrahydro- 4,7-methano-1H-indene, hydrogenated (CAS RN 881025-72-5), and -10 % (± 1 %) of an ethylene-propylene copolymer (CAS RN 9010-79-1)
- 3911 90 99 60Copolymer of styrene with maleic anhydride, either partially esterified or completely chemically modified, in flake or powder form
- 3911 90 99 63Mixture, containing by weight: - 20% or more but not more than 40% of a copolymer of methyl vinyl ether and monobutyl maleate (CAS RN 25119-68-0), - 7% or more but not more than 20% of a copolymer of methyl vinyl ether and monoethyl maleate (CAS RN 25087-06-3), - 40% or more, but not more than 65% of ethanol (CAS RN 64-17-5), - 1% or more but not more than 7% of butan-1-ol (CAS RN 71-36-3)
- 3911 90 99 65Calcium zinc salt of a copolymer of maleic acid and methyl vinyl ether
- 3911 90 99 70Aqueous solution containing by weight: - 30 % or more but not more than 40 % of poly-4-vinylpyridine-N-oxide, - 0,1 % or more but not more than 4 % of isonicotinic acid-N-oxide, - 0,1 % or more but not more than 3,5 % of sodium sulphate, - 0,1 % or more but not more than 2 % of 4-acetylpyridine-N-oxide
- 3911 90 99 73A mixture containing by weight: -89 % or more but not more than 91 % of 1,4:5,8-dimethanonaphthalene, 2-ethylidene-1,2,3,4,4a,5,8,8a-octahydro-, polymer with 3a,4,7,7a-tetrahydro-4,7-methano-1H-indene, hydrogenated (CAS RN 881025-72-5), and -9 % or more but not more than 11 % of polypropylene homopolymer (CAS RN 9003-07-0)
- 3911 90 99 86Copolymer of methyl vinyl ether and maleic acid anhydride (CAS RN 9011-16-9)
- 3911 90 99 90Other
In other countries
National tariff lines under 3911.90 are live on border.bot for the United States (8 lines, also used by 1 other country).
- United States8 lines, used by 1 other country
Frequently asked questions
What does tariff line 3911 90 99 23 cover in the European Union tariff?
In the European Union tariff, line 3911 90 99 23 covers aqueous solution consisting of by weight 25 % or more, but not more than 40 % of a poly(isobutylene-maleic anhydride) modified with: -N,N-dimethylpropane-1,3-diamine, -a copolymer of ethylene oxide and propylene oxide, having aminopropyl and methoxy end-groups, -ethanol (CAS RN 497926-97-3).
What is the general (MFN) duty on 3911 90 99 23 in the European Union?
The general (MFN) duty rate is 6.5%.
Which preferential rates apply to 3911 90 99 23?
Duty-free entry applies to goods that qualify under 5 programmes: EU-Switzerland agreement: re-imported goods, Preferential origin in accordance with the Agreement in the form of an Exchange of Letters between the European Union and the Kingdom of Morocco on the amendment of Protocols 1 and 4 to the Euro-Mediterranean Agreement establishing an association between the European Communities and their Member St…, EEA - European Economic Area, a group of origins (TARIC area XC) and a group of origins (TARIC area XL), and to goods from CARIFORUM, the Eastern and Southern Africa States, SADC EPA, GSP-EBA (Special arrangement for the least-developed countries - Everything But Arms), GSP - General arrangements, GSP+ (incentive arrangement for sustainable development and good governance), OCTs (Overseas Countries and Territories), Central America, Albania, Bosnia and Herzegovina, Canada, Switzerland, Côte d'Ivoire, Chile, Cameroon, Colombia, Algeria, Ecuador, Egypt, Fiji, the Faroe Islands, the United Kingdom, Georgia, Ghana, Israel, Jordan, Japan, Kenya, South Korea, Lebanon, Morocco, Moldova, Montenegro, North Macedonia, Mexico, New Zealand, Peru, Papua New Guinea, Palestine, the Solomon Islands, Singapore, Syria, Tunisia, Ukraine, the United States, Vietnam, Samoa, Kosovo, Serbia and South Africa. A preferential rate of 5.2% applies to goods from Mercosur.
Sources and updates
The tariff lines for the European Union come from border.bot release 1, read from the publisher’s files, and have been live since 11 October 2026.
The duty rates for the European Union come from border.bot release 1, read from the publisher’s files, and have been live since 11 October 2026.
The trade programmes for the European Union come from border.bot release 1, read from the publisher’s files, and have been live since 11 October 2026.
The import taxes for the European Union come from border.bot release 1, imported from a file, and have been live since 9 October 2026.
The de minimis thresholds for the European Union come from border.bot release 2, entered by border.bot, and have been live since 11 October 2026.
This page was last updated on 11 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.