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HSChapter 39
U.S. imports of petroleum resins, coumarone-indene resins & polyterpenes in primary forms (HS 391110) totaled $15.0M in July 2026, traded with 24 countries.
Importers of Petroleum Resins, Coumarone-Indene Resins & Polyterpenes in Primary Forms paid $2.9M in duties in July 2026 — an effective duty rate of 19% on $15.6M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataPetroleum resins, coumarone-indene resins, and polyterpenes are widely used tackifiers in hot-melt adhesives, rubber compounding, and road-marking paints, making them critical inputs for packaging and construction supply chains. South Korea is the dominant US supplier under this heading, followed by China and France; South Korean producers have built large-scale C5 and C9 hydrocarbon resin capacity that underpins their export position. Imports from China carry Section 301 tariff exposure, a factor that has reinforced South Korea's competitive advantage in the US market.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
403 shipments/mo
Petroleum resins are derived from cracked petroleum fractions (C5 or C9 streams), while coumarone-indene resins originate from coal-tar distillates. Both are classified under the same 10-digit line (3911100000) in the US schedule, so the distinction matters primarily for technical specifications and end-use qualification rather than for duty purposes.
Hot-melt and pressure-sensitive adhesive manufacturers are the largest consumers, followed by rubber compounders (for tire and footwear applications) and road-marking paint producers. Demand tends to track construction activity and packaging output, giving imports a degree of cyclicality tied to those sectors.
Subheading 2 of 3 in heading 3911
Subheading 391110 · $15.0M of $56.1M
ImportsExports
Imports
$15.0MYoY · Pro
Exports
$9.2MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Korea, South and China together supply 63% of it.
customs district
destination
entry
rate provision · imports
6.9% enters free of duty; the effective duty rate is 19.39%.
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 |
|---|---|---|---|---|---|
| 3911100000 | Petroleum Resins,Coumarone Resins,Etc,Polyterpenes | $15.0M | 19.39% | 103.89% | $2.9M |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3911100000 | Petroleum Resins,Coumarone Resins,Etc,Polyterpenes | $9.2M |
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.
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