Loading...
HSChapter 39
U.S. exports of other propylene & olefin polymers in primary forms (nesoi) (HS 390290) totaled $57.0M in July 2026.
Importers of Other Propylene & Olefin Polymers in Primary Forms (NESOI) paid $805K in duties in July 2026 — an effective duty rate of 8.0% on $10.0M in dutiable value, based on actual customs collections rather than the published tariff schedule. Other Propylene & Olefin Polymers in Primary Forms (NESOI) imports of $17.8M in July 2026 ran 21% above the year-to-date monthly average of $14.7M.
Last updated: July 2026 dataHeading 390290 captures propylene and other olefin polymers not classified elsewhere, with the US schedule distinguishing polybutylene (3902900010) from all remaining NESOI grades (3902900050). Polybutylene is a specialty resin used in hot-melt adhesives, pipe systems, and flexible packaging, while the NESOI line encompasses a range of higher-alpha-olefin polymers and blends. South Korea and Canada are the leading US suppliers. Importers should be attentive to the polybutylene vs. NESOI split, as polybutylene has a distinct tariff line and misclassification can trigger duty discrepancies.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
386 shipments/mo
Polybutylene is a polymer in which 1-butene is the principal monomer, giving it distinct crystallinity and creep-resistance properties. Any other propylene or olefin polymer not specifically provided for elsewhere in heading 3902 falls into the NESOI line. Importers should obtain a monomer-composition certificate from the supplier to support the polybutylene classification where applicable.
The NESOI line covers a diverse range of specialty polyolefins used in hot-melt adhesive formulations, wax blends, and advanced film structures. Demand is closely tied to packaging, construction adhesive, and nonwoven fabric production cycles. Because these are often specialty or custom grades, supply chains tend to be more concentrated and lead times longer than for commodity resins.
Subheading 3 of 4 in heading 3902
Subheading 390290 · $17.8M of $91.0M
Supplier Network
Get discovered by U.S. importers searching for HS 390290 — Other Propylene & Olefin Polymers in Primary Forms (NESOI). Be the first supplier listed.
ImportsExports
Imports
$17.8MYoY · Pro
Exports
$57.0MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
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 |
|---|---|---|---|---|---|
| 3902900050 | Polymers of Propylene/Othr Olefins Prim Form,NESOI | $14.1M | 4.23% | 50.91% | $596K |
| 3902900010 | Polybutylene | $3.7M | 5.68% | 77.37% | $209K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3902900050 | Polymers of Propylene/Othr Olefins Prim Form,NESOI | $54.5M |
| 3902900010 | Polybutylene | $2.5M |
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.
Exports · July 2026
destination
Belgium and Singapore together take 43% of it.
customs district
origin
entry
rate provision · imports
42.9% enters free of duty; the effective duty rate is 4.53%.