3911.90.45.00

Other

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: Thermosetting

Unit: kg Heading: 3911 Chapter: 39 As of May 1, 2026

Duty rates

Column 1 (General / MFN)

5.8%

Column 2 (Non-NTR)

15.4¢/kg + 45%

Column 1 (Special / FTA)

Free

Eligible

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The rates above are statutory column rates. Trade remedies in Chapter 99 (Section 301, 232, IEEPA, reciprocal) and FTA preferences can change the duty owed on a given entry — see below.

Trade measures (Chapter 99)

9903.03.01

The duty provided in the applicable subheading + 10%

Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

Effective from February 24, 2026 through July 24, 2026

9903.03.02

The duty provided in the applicable subheading

Articles the product of any country that (1) were loaded onto a vessel at the port of loading and in transit on the final mode of transit prior to entry into the United States, before 12:01 a.m. eastern standard time on February 24, 2026; and (2) are entered for consumption, or withdrawn from warehouse for consumption, before 12:01 a.m. eastern standard time on February 28, 2026

Effective from February 24, 2026 through July 24, 2026

9903.03.03

The duty provided in the applicable subheading

Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

Effective from February 24, 2026 through July 24, 2026

9903.03.04

The duty provided in the applicable subheading

Articles the product of any country, as provided for in subdivision (aa)(iii) of U.S. note 2 to this subchapter

Effective from February 24, 2026 through July 24, 2026

9903.03.05

The duty provided in the applicable subheading

Articles of civil aircraft (all aircraft other than military aircraft); their engines, parts and components; their other parts, components and subassemblies; and ground flight simulators and their parts and components of any country, provided for in subdivision (aa)(iv) of U.S. note 2 to this subchapter

Effective from February 24, 2026 through July 24, 2026

9903.03.06

The duty provided in the applicable subheading

Articles of aluminum, of steel, or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; and semiconductor articles, of any country, as provided in subdivision (aa)(v) of U.S. note 2 to this subchapter

Effective from February 24, 2026 through July 24, 2026

9903.03.07

The duty provided in the applicable subheading

Articles the product of Canada, as provided for in subdivision (aa)(vi) of U.S. note 2 to this subchapter

Applies to origin: CA

Effective from February 24, 2026 through July 24, 2026

9903.03.08

The duty provided in the applicable subheading

Articles the product of Mexico, as provided for in subdivision (aa)(vii) of U.S. note 2 to this subchapter

Applies to origin: MX

Effective from February 24, 2026 through July 24, 2026

9903.03.09

The duty provided in the applicable subheading

Articles of textiles or apparel the product of Costa Rica, the Dominican Republic, El Salvador, Guatemala, Honduras or Nicaragua, as provided for in subdivision (aa)(viii) of U.S. note 2 to this subchapter

Applies to origin: CR, SV, GT, HN, NI, DO

Effective from February 24, 2026 through July 24, 2026

9903.03.10

The duty provided in the applicable subheading

Articles that are donations, by persons subject to the jurisdiction of the United States, such as food, clothing and medicine, intended to be used to relieve human suffering

Effective from February 24, 2026 through July 24, 2026

9903.03.11

The duty provided in the applicable subheading

Articles that are informational materials, including but not limited to publications, films, posters, phonograph records, photographs, microfilms, microfiche, tapes, compact disks, CD ROMs, artworks and news wire feeds

Applies to origin: IL

Effective from February 24, 2026 through July 24, 2026

9903.88.02

LIST_1

The duty provided in the applicable subheading + 25%

Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)

Applies to origin: CN

Effective from August 23, 2018

Related CBP rulings

N356246 December 2, 2025

The tariff classification of polyether ether ketone pellets, plates, rods and filament from Germany

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H312427 September 9, 2020

Preferential Tariff Treatment of aquaSAVE under the Trade Agreement between the United States and Japan

Mitsubishi exports an antistatic agent named aquaSAVE for the semiconductor manufacturing process from Japan to the United States. The Mitsubishi Chemical’s website describes the product as follows: “This antistatic agent is used to prevent

N274358 April 22, 2016

The tariff classification of four grades of Duranate from Japan

The merchandise at issue consists of four grades of Duranate, identified as TKA-100, TLA-100, 24A-100, and TKA-90SB. Per your submission the four grades consist of hexamethylene diisocyanate (HDI) based polyisocyanates for polymerization an

N272078 February 5, 2016

The tariff classification of P84 Polyimide Powder from Germany

The merchandise at issue is identified as P84 Polyimide Powder, a product composed primarily of aromatic polyimide resin. You indicate that the product is intended for use as an ingredient in a thermal spray powder.

N270849 December 11, 2015

The tariff classification of SUPERCHLON EN-1160A from Japan

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N268399 September 16, 2015

The tariff classification of a ketone-aldehyde resin from Israel

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N257885 October 29, 2014

The tariff classification of a modified resin emulsion from Japan

The product is identified as Superchlon® S-4625 (Waterborne), CAS #68609-36-9. Technical data, formulation information and a Material Safety Data Sheet were included. The product is a maleic anhydride modified chlorinated polypropylene emul

N251704 April 10, 2014

The tariff classification of Superchlon EN-30 maleic anhydride with polypropylene chlorinated (CAS-68609-36-9) in aqueous solution from Japan

You provided CAS numbers and MSDS sheets for our review. Superchlon EN-30 is described in the MSDS sheets as maleic anhydride with polypropylene chlorinated (CAS-68609-36-9) in the form of a light brown liquid in aqueous solution for use as

N252161 April 9, 2014

Tariff classification of a two part water based polyisocyanate coating system from Italy

You provided MSDS sheets, percent by weight component breakdowns and two sample containers labeled Parts A and B for review. Your samples are being returned. ECOBICO is described as a two part water based aliphatic polyisocyanate protective

N249886 February 6, 2014

Tariff classification of a two part water based polyisocyanate coating system from Italy.

You provided MSDS sheets, percent by weight component breakdowns and two sample containers with printed paper labels for our review. Your samples are being returned. ECOBICO is described as a two part water based aliphatic polyisocyanate pr

N245037 August 28, 2013

The tariff classification of a two part polycarbamide based coating system from Canada.

You provided technical data sheets, MSDS sheets and two samples in small labeled metal tins for our review. Your samples are being returned. CCrete Concrete Resurfacing Coating is described as a two part polycarbamide based coating system d

N226099 August 10, 2012

Tariff classification of poly(hexamethyl biguanide) hydrochloride (CAS-32289-58-0) in aqueous solution; and a mixture of glycine, n-(hydroxymethyl)-, monosodium salt (CAS-70161-44-3) and sodium benzoate (CAS-532-32-1) in aqueous solution from Israel.

You provided MSDS sheets with CAS numbers for our review. Sharomix PHMB is described as an ingredient for cosmetics. Based on your MSDS sheets, the product consists of 20% poly(hexamethyl biguanide) hydrochloride (CAS-32289-58-0) and 80% wa

Other codes in heading 3911

View all codes in heading 3911 →

Duty by origin country

The rate above is the statutory base. Total landed duty depends on origin — see the calculated rate for 3911.90.45.00 from each major US trading partner.

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