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HSChapter 38
U.S. imports of antiknock preparations, nesoi (HS 3811190000) totaled $688K in June 2026, traded with 6 countries.
Importers of Antiknock Preparations, NESOI paid $112K in duties in June 2026 — an effective duty rate of 17% on $678K in dutiable value, based on actual customs collections rather than the published tariff schedule. Antiknock Preparations, NESOI imports of $688K in June 2026 ran 60% above the year-to-date monthly average of $431K.
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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.