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U.S. exports of butadiene rubber (br) (HS 400220) totaled $53.5M in July 2026.
Importers of Butadiene Rubber (BR) paid $469K in duties in July 2026 — an effective duty rate of 10% on $4.6M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataPolybutadiene rubber (BR) is prized for its exceptionally high resilience, low heat build-up, and abrasion resistance, making it a standard co-ingredient with SBR in tire tread compounds and a primary material for golf ball cores and conveyor belts. Japan and Taiwan are leading US suppliers, with Germany and South Korea also contributing, reflecting the concentration of BR production capacity in major petrochemical hubs. All forms — bales, crumbs, and other primary shapes — are classified under the single US tariff line 4002200000. Cis-content (high-cis vs. low-cis BR) is the key technical specification that determines suitability for tire versus non-tire applications.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
101 shipments/mo
High-cis BR (typically >96% cis-1,4 content, produced with Ziegler-Natta or neodymium catalysts) delivers superior abrasion resistance and low rolling resistance critical for tire treads. Low-cis BR (produced with lithium catalysts) has different processing characteristics and is preferred for impact modification of plastics such as HIPS. Specifying cis-content in purchase contracts and certificates of analysis ensures the material meets end-use requirements and helps document the technical basis for any quality disputes.
BR from certain origins has been subject to antidumping duty investigations historically. Importers should verify current ADD/CVD order status through CBP's online reference tools and the USITC order list for the specific country of origin before each shipment, as scope and suspension agreements can change. A licensed customs broker can assist with scope ruling requests if the product's specifications create classification ambiguity.
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Subheading 6 of 14 in heading 4002
Subheading 400220 · $4.9M of $116.1M
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 |
|---|---|---|---|---|---|
| 4002200000 | Butadiene Rubber (Br) | $4.9M | 9.62% | 94.71% | $469K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 4002200000 | Butadiene Rubber (Br) | $53.5M |
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.
ImportsExports
Imports
$4.9MYoY · Pro
Exports
$53.5MYoY · 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
5.3% enters free of duty; the effective duty rate is 9.62%.