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HSChapter 39
U.S. imports of ethylene-alpha-olefin copolymers with specific gravity below 0.94 (HS 390140) totaled $121.6M in April 2026, traded with 19 countries.
Importers of Ethylene-Alpha-Olefin Copolymers with Specific Gravity Below 0.94 paid $1.2M in duties in April 2026 — an effective duty rate of 12% on $10.1M in dutiable value, based on actual customs collections rather than the published tariff schedule. Ethylene-Alpha-Olefin Copolymers with Specific Gravity Below 0.94 imports of $121.6M in April 2026 ran 16% above the year-to-date monthly average of $104.9M.
Last updated: April 2026 dataEthylene-alpha-olefin copolymers with a specific gravity below 0.94 — a family that includes linear low-density polyethylene (LLDPE) and metallocene-catalyzed grades — are critical inputs for stretch film, flexible packaging, and impact-modifier applications. The density threshold of less than 0.94 is the defining classification boundary separating these materials from HDPE (heading 390120), and a single data-sheet value can shift a shipment between headings. Canada is the leading US supplier, with South Korea and Singapore also significant sources. Importers should confirm specific gravity via certified test results, as density can vary by production lot.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
CBP may request a manufacturer's certificate of analysis or an independent laboratory test report confirming the specific gravity of the resin lot. Because density can vary slightly between production runs, importers should maintain lot-level documentation and be prepared to provide test data during a CBP inquiry or audit.
Stretch film, food-contact flexible packaging, and automotive impact modifiers are among the primary end uses. Demand in these sectors can be seasonal or tied to automotive production cycles, so importers often maintain safety stock and diversify across North American and Asian suppliers to manage lead-time risk.
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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 |
|---|---|---|---|---|
| 3901400000 | ETHYLENE-ALPHA-OLEFIN COPOLYMERS, HAVING <0.94 | $121.6M | 11.74% | $1.2M |
ETHYLENE-ALPHA-OLEFIN COPOLYMERS, HAVING <0.94
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3901400000 | ETHYLENE-ALPHA-OLEFIN COPOLYMERS, HAVING <0.94 | $523.5M |
ETHYLENE-ALPHA-OLEFIN COPOLYMERS, HAVING <0.94
480.3M 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 | $18.2M | $414.6M | +$396.4M |
| South Carolina | $12.6M | $41.5M | +$29.0M |
| Louisiana | -- | $28.6M | +$28.6M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| HOUSTON, TX | $675K | $334.4M | +$333.7M |
| CHARLESTON, SC | $9.3M | $45.1M | +$35.8M |
| LAREDO, TX | -- | $46.2M | +$46.2M |