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SITCSection 6
U.S. imports of unvulcanized compounded rubber with carbon black or silica (SITC 62111) totaled $35.8M in April 2026, traded with 26 countries.
Importers of Unvulcanized Compounded Rubber with Carbon Black or Silica paid $1.3M in duties in April 2026 — an effective duty rate of 10% on $13.0M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataCarbon black and silica are the dominant reinforcing fillers in rubber compounding, and their presence defines this classification — distinguishing it from other compounded rubber solutions or dispersions. Material in this heading arrives in primary forms (pellets, bales, granules) or as plates, sheets, or strip, all in the unvulcanized state, meaning the cross-linking cure has not yet occurred. These intermediates are critical feedstocks for tire manufacturers, industrial belt producers, and automotive sealing-system suppliers, where filler loading levels directly govern tensile strength and abrasion resistance.
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Carbon black and silica are specifically named reinforcing agents that trigger a dedicated SITC subheading. Compounded rubber containing other fillers, or supplied as solutions and dispersions, falls under separate headings, so the filler type and physical form must both be confirmed before classification.
The heading covers primary forms (e.g., bales, pellets, granules) as well as plates, sheets, and strip — all unvulcanized. While the SITC heading groups these together, the corresponding HTS tariff schedule may subdivide by form, so importers should verify the specific HTS line applicable to their shipment's physical presentation.
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Monthly import values over time