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HTS 3902.20Chapter 39

HTS 3902.20Polyisobutylene: Duty Rate & Import Guide

Plastics · 4 court cases · $6.9M monthly imports · 100% from 1 countries · Updated daily from USITC

Duty Rates

General

Free

Special

Free

Column 2

Free

Trade Agreement Eligibility

CUSMAKORUS

Trade Intelligence

Monthly Imports

$6.9M

2026-01

Trade Concentration

100%

from top 3 of 1 origins

Regulatory Pressure

MODERATE

1 rulings — · 0 reg · 3 CIT, 1 CAFC

Global Rates

🇺🇸 Free

🇬🇧 United Kingdom: N/A · 🇪🇺 European Union: N/A · 🇨🇦 Canada: Free · 🇧🇷 Brazil: 1 NCM code

Compare All →

Data compiled from USITC HTS, US Census Bureau, CBP CROSS Rulings, CourtListener, HMRC / DG TAXUD / CBSA / SISCOMEX · As of 2026-04-28 · Updates monthly

Supply Chain Risk

100% of US imports for this code come from just 1 countries. High origin concentration increases exposure to trade disruptions or tariff escalations.

Trade Remedy

Additional Tariffs Apply

Section 301 — China Tariffs+25%

List 2 — ~$16B of Chinese goods (semiconductors, chemicals, plastics)

Active — 7.5%–25% additional duties on Chinese-origin goods across four tranches (Lists 1–4A), with higher 2024/2025 increases on targeted product categories.

Effective 2018-07-06

These additional tariffs apply on top of the general duty rate. View full trade remedy tracker →

Subheadings (3)

CodeDescriptionRate
3902.20Polyisobutylene:
3902.20.10.00ElastomericFree
3902.20.50.00Other6.5%

CBP Rulings (1)

H044564Classification

Application for Further Review of Protest 3901-08-101355; Duty Suspension of Polyisobutylene

Court of International Trade & Federal Circuit (4)

Matching Export Code (Schedule B)

3902201000Schedule B

POLYISOBUTYLENE,ELASTOMERIC

Census Bureau export classification matching this HTS import code.

3902.10.00.003902.20.10.00