U.S. exports of Butadiene Rubber (BR) in Primary Forms (SITC 23212) totaled $50.1M in August 2026.
Importers of Butadiene Rubber (BR) in Primary Forms 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) in Primary Forms 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 a high-cis synthetic elastomer prized for its exceptional abrasion resistance and low-temperature flexibility, making it a critical blending component in truck and passenger-tire sidewalls and golf-ball cores. Its production is highly concentrated among a small number of petrochemical complexes, so supply disruptions in butadiene feedstock markets can create rapid price volatility for downstream compounders. BR is traded in primary forms — bales, crumbs, and pellets — and the specific microstructure (high-cis vs. low-cis) is a key specification that buyers should confirm with suppliers before import.
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101 import shipments a month
No — high-cis and low-cis polybutadiene both classify under the same heading. However, cis-content is a critical commercial specification that should be documented in the purchase contract and certificate of analysis, as it directly affects end-use suitability and can influence customs valuation if unit prices differ significantly between grades.
BR is commonly imported as bales, crumbs, or pellets. All of these qualify as 'primary forms' under SITC 23212, so the physical presentation does not change the classification. Importers should confirm that the product has not been further processed into sheets or strips of a defined thickness, which could shift the classification.
Basic heading 29 of 239 in section 2
Basic heading 23212 · $50.1M of $7.8B
Exports · August 2026
destination
customs district
Census does not publish district detail for this classification system.
origin
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
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) in Primary Forms and exported $484.3M.
Through August 2026. Source: U.S. Census Bureau.
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