SITCSection 2
U.S. imports of styrene-butadiene rubber (sbr) and carboxylated sbr (xsbr) (SITC 23211) totaled $56.8M in July 2026, traded with 32 countries.
Importers of Styrene-Butadiene Rubber (SBR) and Carboxylated SBR (XSBR) paid $4.1M in duties in July 2026 — an effective duty rate of 10% on $38.9M in dutiable value, based on actual customs collections rather than the published tariff schedule. Styrene-Butadiene Rubber (SBR) and Carboxylated SBR (XSBR) imports of $56.8M in July 2026 ran 13% above the year-to-date monthly average of $50.4M.
Last updated: July 2026 dataSBR and its carboxylated variant XSBR are the most widely traded synthetic elastomers globally, serving as the dominant polymer in passenger-car tire treads and conveyor belting. Emulsion-polymerized grades (E-SBR) and solution-polymerized grades (S-SBR) carry distinct performance profiles — S-SBR commands a premium in high-performance tire applications due to lower rolling resistance. Importers should note that certain SBR imports from specific origins have been subject to antidumping proceedings, making origin documentation and mill certificates critical for classification and duty assessment.
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794 shipments/mo
Basic heading 16 of 239 in section 2
Basic heading 23211 · $56.8M of $3.8B
Both emulsion-SBR and solution-SBR fall under the same SITC heading 23211, so the polymerization route does not change the classification. However, the grade distinction matters commercially: S-SBR is used in premium tire compounds and typically commands a higher unit value, which can affect customs valuation review.
Yes. Antidumping and countervailing duty orders have been applied to SBR from certain countries in past proceedings. Importers should verify current order status with US Customs and Border Protection and confirm the country of origin carefully, as circumvention through third-country processing has been an enforcement concern.
Supplier Network
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Imports · July 2026
origin
Mexico and Korea, South together supply 43% of it.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$56.8MYoY · Pro
Exports
$47.1MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.