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HSChapter 39
U.S. imports of polypropylene in primary forms (HS 390210) totaled $43.9M in April 2026, traded with 40 countries.
Importers of Polypropylene in Primary Forms paid $1.8M in duties in April 2026 — an effective duty rate of 14% on $12.7M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 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.
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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| Country | Imports | Exports | Balance |
|---|---|---|---|
| MEXICO | $1.2M | $102.5M | +$101.3M |
| CANADA | $29.9M | $26.9M | -$3.0M |
| COLOMBIA | $159K | $8.9M | +$8.7M |
| GUATEMALA | -- | $6.1M | +$6.1M |
| KOREA, SOUTH | $3.8M | $67K | -$3.8M |
Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 3902100000 | POLYPROPYLENE | $43.9M | 14.01% | $1.8M |
POLYPROPYLENE
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3902100000 | POLYPROPYLENE | $189.1M |
POLYPROPYLENE
130.5M kg
ARTICLES OF PLASTICS, NESOI
HS 392690
FLOOR, WALL, ETC COVERS, VINYL CHLORIDE POLYMERS
HS 391810
TABLEWARE AND KITCHENWARE OF PLASTICS
HS 392410
SACKS & BAGS (INCL CONES) OF POLYMERS OF ETHYLENE
HS 392321
HOUSEHOLD AND TOILET ARTICLES NESOI OF PLASTICS
HS 392490
PLATES, SHEETS ETC, NON-CELL ETC, POLYMER
HS 392010
| State | Imports | Exports | Balance |
|---|---|---|---|
| Texas | $4.7M | $94.2M | +$89.5M |
| South Carolina | $6.2M | $10.7M | +$4.5M |
| Illinois | $11.0M | $3.5M | -$7.5M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LAREDO, TX | $1.1M | $70.8M | +$69.6M |
| HOUSTON, TX | $249K | $32.6M | +$32.4M |
| PORTAL, ND | $17.6M | -- | -$17.6M |