U.S. exports of Butadiene Rubber (BR) (HS 400220) totaled $50.1M in August 2026.
Importers of Butadiene Rubber (BR) paid $662K in duties in August 2026, an average duty rate of 11.21% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Butadiene Rubber (BR) imports of $5.9M in August 2026 ran 16% above the year-to-date monthly average of $5.1M.
Last updated: August 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.
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101 import shipments a month
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.
ImportsExports
Imports
$5.9MYoY · free account
Exports
$50.1MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $59.4M of Butadiene Rubber (BR) and exported $484.3M.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 400220 — Butadiene Rubber (BR), so the companies trading it can find you. Be the first supplier listed.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 4002200000 | Butadiene Rubber (Br) | $5.9M | 11.21% | 97.97% | $662K |
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) | $50.1M |
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.
Exports · August 2026
destination
customs district
origin
entry
rate provision · imports
2.0% enters free of duty; duty collected equals 11.21% of imports for consumption.
Subheading 2 of 14 in heading 4002
Subheading 400220 · $50.1M of $240.3M