U.S. imports of Primary Synthetic Rubber (End-Use 16050) totaled $271.1M in August 2026, imported from 92 countries.
Importers of Primary Synthetic Rubber paid $23.2M in duties in August 2026, an average duty rate of 8.38% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataPrimary synthetic rubber — including styrene-butadiene rubber (SBR), polybutadiene, and other elastomers in unvulcanized, primary forms — is a critical upstream input for tire manufacturing, automotive sealing systems, and industrial hose and belt production. Imported in bales, crumbs, or granules, these materials are priced against petrochemical feedstock costs and compete with natural rubber on performance and price. Trade professionals should note that certain synthetic rubber types have been subject to antidumping proceedings, and the specific polymer type and Mooney viscosity grade can affect both classification and end-use suitability.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
7.3K import shipments a month
End-Use codes describe different products on the import and export sides. Cross-direction exports are not shown for this slug.
Mooney viscosity is a key specification that determines processability in compounding and end-use suitability — lower viscosity grades are preferred for certain injection-molded applications, while higher viscosity grades suit tire tread compounds. While Mooney viscosity itself does not drive HTS classification (which turns on polymer type and form), it is a critical specification in purchase contracts and quality documentation.
Yes, certain synthetic rubber types — including specific grades of SBR — have been subject to antidumping duty investigations and orders from particular origins. Importers should check the current scope of any active orders with the US International Trade Commission and consult a licensed customs broker before sourcing.
Commodity 32 of 51 in category 1
Commodity 16050 · $271.1M of $63.1B
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Imports · August 2026
origin
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.
Imports
Imports
$271.1MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $2.9B of Primary Synthetic Rubber.
Through August 2026. Source: U.S. Census Bureau.