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SITCSection 2
U.S. imports of mixtures of natural rubber and synthetic rubber in primary forms (SITC 23218) totaled $79K in July 2026, traded with 11 countries.
Last updated: July 2026 dataPre-blended mixtures of natural rubber or natural gums with synthetic rubber products occupy a specialized niche in the elastomer trade, offering compounders a pre-dispersed starting point that reduces in-house mixing steps and improves batch consistency. Classification of these blends depends on the specific synthetic rubber component present and the ratio of natural to synthetic content, making accurate product documentation essential to avoid misclassification into either the natural rubber or the pure synthetic rubber headings. Buyers should ensure that supplier technical data sheets clearly identify both the natural rubber grade and the synthetic polymer type, as this information directly supports correct SITC assignment.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
6 shipments/mo
Basic heading 182 of 239 in section 2
Basic heading 23218 · $79K of $3.8B
Importers should obtain a certificate of analysis or technical data sheet that identifies the natural rubber grade, the specific synthetic rubber polymer (e.g., SBR, BR, IR), and the approximate weight ratio of each component. This information is necessary to determine whether the blend classifies under SITC 23218 or whether the synthetic component's proportion is sufficient to shift classification to a pure synthetic rubber heading.
Not necessarily. The addition of fillers such as carbon black, silica, or process oils can shift the classification from a primary-form rubber blend to a compounded rubber mixture, which may fall under a different heading entirely. Importers should consult a licensed customs broker or request a binding ruling when the blend contains significant filler loadings.
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Imports · July 2026
origin
France and Mexico together supply 96% 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
$79KYoY · Pro
Exports
$34KYoY · Pro
12-mo low · imports
YoY · ProFewer than 6 of the last 12 months reported trade above $500K; the trend chart is not shown for thin series.
Through July 2026. Source: U.S. Census Bureau.