Chapter 39 · Plastics and articles thereof · Section 7
HS Code 3911.90
Other
Heading 3911: Petroleum resins, coumarone-indene resins, polyterpenes, polysulfides, polysulfones and other products specified in note 3 to this chapter, not elsewhere specified or included, in primary forms
US duty (general)
Free - 6.5%
US HTS lines
7
EU CN codes
6
UK commodity codes
31
Unit
kg
US HTS + UK Tariff v4.0.1633 · updated 2026-10-21 · sources
Rates on this page are the official published schedule rates, shown for information. This is not a customs ruling: preference programs, Section 232/301 surcharges and per-shipment fees can change what you actually pay.
United States - HTS lines under 3911.90
Source: official Harmonized Tariff Schedule (USITC). "General" is the normal-trade-relations rate; "Special" lists preference programs; "Other" is the column-2 rate. Additional Section 232/301 duties may apply on top.
| HTS code | Description | General | Special | Other | Unit |
|---|---|---|---|---|---|
| 3911.90.10 | Elastomeric | Free | - | 20% | kg |
| 3911.90.15 |
Containing monomer units which are aromatic or modified aromatic, or which are obtained, derived or manufactured in whole or in part therefrom > Thermoplastic > Poly(nitrilomethanetetraarylnitrilo- [2,4,6-tris-(1-methyethyl)-1,3- phenylene]]-2,6-bis(1-methylethyl)- phenyl]-ω-[[[2,6-bis(1-methylethyl)- phenyl]amino]methylene]amino carbodiimide or 2,4-diisocyanate-1,3,5-tris(1-methyl- ethyl) homopolymer with polyethylene |
Free | - | 15.4¢/kg + 49% | kg |
| 3911.90.25 |
Containing monomer units which are aromatic or modified aromatic, or which are obtained, derived or manufactured in whole or in part therefrom > Thermoplastic > Other |
6.1% | Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 49% | kg |
| 3911.90.35 |
Containing monomer units which are aromatic or modified aromatic, or which are obtained, derived or manufactured in whole or in part therefrom > Thermosetting > 1,1'-Bis(methylenedi-4,1-phenylene)- 1H-pyrrole-2,5-dione, copolymer with 4,4'-methylenebis(benzeneamine); and Hydrocarbon novolac cyanate ester |
Free | - | 15.4¢/kg + 45% | kg |
| 3911.90.45 |
Containing monomer units which are aromatic or modified aromatic, or which are obtained, derived or manufactured in whole or in part therefrom > Thermosetting > Other |
5.8% | Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 45% | kg |
| 3911.90.70 |
Other > Other > Chlorinated synthetic rubber |
Free | - | 2.2¢/kg + 33.5% | kg |
| 3911.90.91 |
Other > Other > Other 2 statistical lines (10-digit)
|
6.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) | 2.2¢/kg + 33.5% | kg |
Estimate the US duty runs in your browser · no caps
Enter the customs value (and quantity, when a rate is per-unit) to estimate the general-rate duty per HTS line. Estimates exclude Section 232/301 surcharges, MPF/HMF and fees. Not a customs ruling.
European Union - CN codes under 3911.90
Source: EU Combined Nomenclature (Eurostat, © European Union, reused per Decision 2011/833/EU). Duty rates and measures live in TARIC; each code links to the official consultation.
| CN code | Description | |
|---|---|---|
| 3911 90 92 | Copolymer 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 | EU duty (TARIC) → |
| 3911 90 99 | Other | EU duty (TARIC) → |
| 3911 90 11 | Poly(oxy-1,4-phenylenesulphonyl-1,4-phenyleneoxy-1,4-phenyleneisopropylidene-1,4-phenylene), in one of the forms mentioned in note 6(b) to this chapter | EU duty (TARIC) → |
| 3911 90 19 | Other | EU duty (TARIC) → |
| 3911 90 13 | Poly(thio-1,4-phenylene) | EU duty (TARIC) → |
| 3911 90 00 | Other | EU duty (TARIC) → |
United Kingdom - commodity codes under 3911.90
Source: UK Integrated Online Tariff (Open Government Licence v3.0). Declarable 10-digit codes go on the customs declaration; check the official page for the current duty and VAT measures.
| Commodity code | Description | |
|---|---|---|
| 3911 90 00 00 | Other | UK duty & VAT → |
| 3911 90 11 00 | Poly(oxy-1,4-phenylenesulphonyl-1,4-phenyleneoxy-1,4-phenyleneisopropylidene-1,4-phenylene), in one of the forms mentioned in note 6(b) to this chapter | UK duty & VAT → |
| 3911 90 11 10 | Poly(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 | UK duty & VAT → |
| 3911 90 11 90 | Other | UK duty & VAT → |
| 3911 90 13 00 | Poly(thio-1,4-phenylene) | UK duty & VAT → |
| 3911 90 19 00 | Other | UK duty & VAT → |
| 3911 90 19 15 | Polyetherimide 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) | UK duty & VAT → |
| 3911 90 19 25 | Polyamideimide 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 | UK duty & VAT → |
| 3911 90 19 30 | Copolymer of ethyleneimine and ethyleneimine dithiocarbamate, in an aqueous solution of sodium hydroxide | UK duty & VAT → |
| 3911 90 19 35 | Poly(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 | UK duty & VAT → |
| 3911 90 19 40 | m- Xylene formaldehyde resin | UK duty & VAT → |
| 3911 90 19 80 | Poly(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 | UK duty & VAT → |
| 3911 90 19 90 | Other | UK duty & VAT → |
| 3911 90 92 00 | Copolymer 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 | UK duty & VAT → |
| 3911 90 99 00 | Other | UK duty & VAT → |
| 3911 90 99 10 | For cavity filling, for use in certain types of aircraft | UK duty & VAT → |
| 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) | UK duty & VAT → |
| 3911 90 99 25 | Copolymer of vinyltoluene and α-methylstyrene | UK duty & VAT → |
| 3911 90 99 35 | Alternated copolymer of ethylene and maleic anhydride (EMA) | UK duty & VAT → |
| 3911 90 99 38 | Mixture 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) | UK duty & VAT → |
| 3911 90 99 40 | Mixed 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 | UK duty & VAT → |
| 3911 90 99 43 | Copolymer of α-methylstyrene and styrene, having a softening point of more than 113 ºC | UK duty & VAT → |
| 3911 90 99 45 | Copolymer of maleic acid and methyl vinyl ether | UK duty & VAT → |
| 3911 90 99 48 | Mixture 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) | UK duty & VAT → |
| 3911 90 99 60 | Copolymer of styrene with maleic anhydride, either partially esterified or completely chemically modified, in flake or powder form | UK duty & VAT → |
| 3911 90 99 63 | Mixture, 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) | UK duty & VAT → |
| 3911 90 99 65 | Calcium zinc salt of a copolymer of maleic acid and methyl vinyl ether | UK duty & VAT → |
| 3911 90 99 70 | Aqueous solution containing by weight: <br><br><br>- 30 % or more but not more than 40 % of poly-4-vinylpyridine-N-oxide, <br> <br><br><br>- 0,1 % or more but not more than 4 % of isonicotinic acid-N-oxide, <br> <br><br><br>- 0,1 % or more but not more than 3,5 % of sodium sulphate, <br> <br><br><br>- 0,1 % or more but not more than 2 % of 4-acetylpyridine-N-oxide | UK duty & VAT → |
| 3911 90 99 73 | A 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) | UK duty & VAT → |
| 3911 90 99 86 | Copolymer of methyl vinyl ether and maleic acid anhydride (CAS RN 9011-16-9) | UK duty & VAT → |
| 3911 90 99 90 | Other | UK duty & VAT → |
Not a customs ruling. Classification is determined by the importing country's customs authority and depends on the exact product. This page is reference information from official published schedules, not legal advice. For a binding decision, request a ruling (US: CBP CROSS · UK: HMRC ATaR · EU: BTI).
Nearby codes in heading 3911
The subheadings immediately before and after 3911.90 in chapter 39.
3911.00 3911 Petroleum resins, coumarone-indene resins, polyterpenes, polysulphides, polysulphones
3911.10 Petroleum resins, coumarone, indene or coumarone-indene resins; polyterpenes
3911.20 Poly(1,3-phenylene methylphosphonate)
Sources: U.S. International Trade Commission, Harmonized Tariff Schedule (public domain) · EU Combined Nomenclature © European Union, Eurostat (Decision 2011/833/EU) · UK Integrated Online Tariff, contains public sector information licensed under the Open Government Licence v3.0. Data refreshed weekly. Details on About & Data Sources.
Frequently asked questions
Common questions about HS code 3911.90.
What is HS code 3911.90?
HS code 3911.90 covers: Other. It belongs to chapter 39 (Plastics and articles thereof) of the Harmonized System.
What is the US import duty for HS code 3911.90?
The US general (normal trade relations) rates under this subheading range: Free - 6.5%. Preference programs and Section 232/301 surcharges can change the effective rate; see the HTS lines for detail.
What is the UK commodity code for 3911.90?
The UK extends 3911.90 to 31 declarable 10-digit commodity codes, starting with 3911900000. The full code goes on the UK customs declaration.