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HSChapter 39
U.S. imports of silicones in primary forms (HS 3910000000) totaled $48.1M in June 2026, traded with 52 countries.
Importers of Silicones in Primary Forms paid $6.4M in duties in June 2026 — an effective duty rate of 15% on $42.1M in dutiable value, based on actual customs collections rather than the published tariff schedule.
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Monthly import values over time
No geographic breakdown available
U.S. trade for this product is not broken down by state or port in the latest Census Bureau release.