Polybutene

CAS 9003-29-6

Companies reported imports and no US production of this chemical to EPA for 2023.

US productionZero

Import value, 2024$178M

Import volume29.7K lb

Import dependency100%

Top sourceCanada 20%

Production is reported production, not a complete census of factories. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Polybutene · US import value by year

2013: $163M · Peak 2022: $201M · 2024: $178M · 2025: $168M

Where It Comes From

Customs basis: HS 390290 · basket

EPA reports by year

2023: US production Zero · Imports 29.7K lb
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 390290, which covers 17 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

CA 20%CanadaIT 17%ItalyKR 15%South KoreaJP 13%JapanNL 8%Netherlands

Malaysia
Kazakhstan
India
United Kingdom
Spain
Sweden
Turkey
United Arab Emirates
Poland
Switzerland
Australia
Portugal
Ireland
Brazil
Denmark
Austria
Senegal

EPA-registered importers (1)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Flow Polymers

Why It Matters

Sectors

Core Chemicals

Downstream UsesNot recorded

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Industrial Uses

•Binder in All Other Chemical Product and Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS9003-29-6

PubChem CIDNot recorded

DTXSIDDTXSID2034831

FormulaNot recorded

Mol. WeightNot recorded

SMILESNot recorded

Data Sources

EPA CompTox (DSSTox) · DTXSID2034831Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Polybutene (CAS 9003-29-6) https://chemicalindependence.com/chemical/9003-29-6/ EPA CompTox (DSSTox): DTXSID2034831. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID2034831 EPA Chemical Data Reporting: 9003-29-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 9003-29-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 390290 for CAS 9003-29-6. Reporting year: 2024. https://usatrade.census.gov/