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HSChapter 38
U.S. imports of inorganic reaction initiators & accelerators of bismuth, tungsten, or vanadium (HS 3815901000) totaled $326K in June 2026, traded with 8 countries.
Importers of Inorganic Reaction Initiators & Accelerators of Bismuth, Tungsten, or Vanadium paid $27K in duties in June 2026 — an effective duty rate of 17% on $164K in dutiable value, based on actual customs collections rather than the published tariff schedule. Inorganic Reaction Initiators & Accelerators of Bismuth, Tungsten, or Vanadium imports of $326K in June 2026 ran 21% below the year-to-date monthly average of $414K.
Reaction initiators and accelerators based on inorganic substances — specifically those containing bismuth, tungsten, or vanadium — are classified under 3815901000 and serve as catalytic inputs in chemical processing, petroleum refining, and specialty polymer manufacturing. These compounds function by lowering activation energy or accelerating reaction rates without being consumed in the process, distinguishing them from reagents. Because these are purely industrial chemical intermediates rather than finished consumer products, no mandatory admissibility review by FDA or USDA applies, though export controls or TSCA reporting obligations may be relevant depending on the specific compound.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Under heading 3815, reaction initiators, accelerators, and catalytic preparations are grouped together. The key classification distinction is whether the substance is a supported catalyst (on a carrier) or an unsupported preparation, and whether it is organic or inorganic in composition. 3815901000 specifically covers inorganic preparations based on bismuth, tungsten, or vanadium.
Importers should verify whether specific vanadium- or tungsten-based preparations from particular origins are subject to antidumping or countervailing duty orders, as certain inorganic chemical compounds have been targeted by trade remedy proceedings. A licensed customs broker can confirm current order applicability.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CANADA | $162K | -- | -$162K |
| GERMANY | $148K | -- | -$148K |
| POLAND | $9K | -- | -$9K |
| TURKEY | $6K | -- | -$6K |
| KOREA, SOUTH | -- | -- | -- |
No geographic breakdown available
U.S. trade for this product is not broken down by state or port in the latest Census Bureau release.