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U.S. exports of ethylene-alpha-olefin copolymers with specific gravity below 0.94 (HS 390140) totaled $534.1M in July 2026.
Importers of Ethylene-Alpha-Olefin Copolymers with Specific Gravity Below 0.94 paid $1.3M in duties in July 2026 — an effective duty rate of 11% on $11.4M 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 $152.1M in July 2026 ran 14% above the year-to-date monthly average of $132.9M.
Ethylene-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.
1.6K shipments/mo
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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Subheading 2 of 5 in heading 3901
Subheading 390140 · $152.1M of $428.8M
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 |
|---|---|---|---|---|---|
| 3901400000 | Ethylene-Alpha-Olefin Copolymers, Having <0.94 | $152.1M | 0.84% | 7.52% | $1.3M |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3901400000 | Ethylene-Alpha-Olefin Copolymers, Having <0.94 | $534.1M |
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
$152.1MYoY · Pro
Exports
$534.1MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Exports · July 2026
destination
customs district
origin
entry
rate provision · imports
86.8% enters free of duty; the effective duty rate is 0.84%.