3911.90.25.00
Thermoplastic / Other
Classification path
- 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
- Other
- Other
- Containing monomer units which are aromatic or modified aromatic, or which are obtained, derived or manufactured in whole or in part therefrom
- Thermoplastic
- Other
Rates of duty
- General (MFN)
- 6.1%
- Column 2Cuba, North Korea, Russia, Belarus
- 15.4¢/kg + 49%
- Unit of quantity
- kg
Trade agreement rates
Related lines in heading 3911
- 3911.10.00.00Petroleum resins, coumarone, indene or coumarone-indene resins; polyterpenes6.1%
- 3911.20.00.00Poly(1,3-phenylene methylphosphonate)6.5%
- 3911.90.10.00ElastomericFree
- 3911.90.15.00Poly(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 polyethyleneFree
- 3911.90.35.001,1'-Bis(methylenedi-4,1-phenylene)- 1H-pyrrole-2,5-dione, copolymer with 4,4'-methylenebis(benzeneamine); and Hydrocarbon novolac cyanate esterFree
- 3911.90.45.00Thermosetting / Other5.8%
- 3911.90.70.00Chlorinated synthetic rubberFree
- 3911.90.91.10Thermoplastic6.5%
- 3911.90.91.50Thermosetting6.5%
About 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
Heading 3911 covers a group of specialty and synthetic resins in primary forms that are not covered by the more common polymer headings, such as petroleum resins, coumarone-indene resins, polyterpenes, polysulfides and polysulfones. The heading splits first by product family: 3911.10 for petroleum, coumarone-indene and polyterpene resins, 3911.20 for poly(1,3-phenylene methylphosphonate), and 3911.90 for all other products of the heading. The 3911.90 lines then split by elastomeric status, by whether monomer units are aromatic or modified aromatic, and by thermoplastic versus thermosetting form.
Full guide to heading 3911Products in this heading
- Petroleum resin tackifier used in hot melt adhesives
- Coumarone-indene resin used in coatings and rubber compounds
- Polyterpene resin made from turpentine feedstocks
- Polysulfide rubber in primary form for sealants
- Polysulfone pellets for injection molding
- Chlorinated synthetic rubber in primary form
- Aromatic thermoplastic resin pellets for compounding
- Aromatic thermosetting resin in bulk for laminates
Frequently asked questions
What is the HTS code for petroleum resins and polyterpene resins?
Petroleum resins, coumarone, indene or coumarone-indene resins and polyterpenes are classified under 3911.10.00.00. The general (MFN) duty rate for that line is 6.1%.
What is the duty on aromatic thermoplastic resins in primary forms?
Aromatic or modified aromatic thermoplastic resins of heading 3911, other than the named chemical in 3911.90.15.00, fall under 3911.90.25.00. The general (MFN) duty rate for that line is 6.1%.
How do I classify chlorinated synthetic rubber in primary form?
Chlorinated synthetic rubber is named in 3911.90.70.00, since it is an other product of the heading that is not aromatic-based. The general (MFN) duty rate for that line is Free.
Source: USITC Harmonized Tariff Schedule, retrieved October 21, 2026.