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HSChapter 39
U.S. exports of polypropylene in primary forms (HS 390210) totaled $181.0M in July 2026.
Importers of Polypropylene in Primary Forms paid $2.4M in duties in July 2026 — an effective duty rate of 13% on $18.2M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataPolypropylene (PP) resin in primary forms — pellets, granules, powder, or flake — is one of the most widely traded commodity plastics globally, serving as a feedstock for injection-molded parts, woven bags, nonwoven fabrics, and automotive components. The entire heading resolves to a single 10-digit line (3902100000), so classification disputes typically arise not from line selection but from distinguishing polypropylene homopolymer from propylene copolymers (heading 390230) based on comonomer content. Canada leads US imports, with South Korea and Germany also significant sources. Importers sourcing from South Korea may evaluate KORUS FTA eligibility for qualifying shipments.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
1.0K shipments/mo
The key is comonomer content: a homopolymer contains only propylene repeat units, while a copolymer incorporates a second monomer such as ethylene. Suppliers should provide a certificate of composition or polymer data sheet specifying the monomer ratio. Even small amounts of comonomer can shift classification to heading 390230, so lot-level documentation is advisable.
PP resin is typically shipped in bulk railcar, bulk container (flexi-bag or box), or 25 kg bags. Moisture ingress during transit can affect melt-flow index and surface quality of molded parts, so importers should specify desiccant requirements and verify container integrity. Port dwell time also matters because extended outdoor storage in humid climates can degrade certain additive packages.
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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 3902100000 | Polypropylene | $40.9M | 5.96% | 44.43% | $2.4M |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3902100000 | Polypropylene | $181.0M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$40.9MYoY · Pro
Exports
$181.0MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Exports · July 2026
destination
Mexico and Canada together take 72% of it.
customs district
origin
entry
rate provision · imports
55.5% enters free of duty; the effective duty rate is 5.96%.