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SITCSection 5
U.S. imports of silicon (SITC 52223) totaled $54.1M in April 2026, traded with 22 countries.
Importers of Silicon paid $5.6M in duties in April 2026 — an effective duty rate of 15% on $38.3M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataMetallurgical-grade and polycrystalline silicon are distinct commercial products with very different end uses: metallurgical silicon feeds aluminum alloys and silicone chemical production, while polysilicon is the primary feedstock for solar photovoltaic wafers and semiconductor substrates. Silicon imports have been subject to significant trade-remedy scrutiny, with antidumping and countervailing duty orders affecting certain grades and origins. Buyers should verify whether their specific silicon grade and supplier country fall under any active orders before contracting.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Metallurgical-grade silicon typically contains 98–99% silicon and is used in aluminum alloys and chemical synthesis. Polysilicon (polycrystalline silicon) is refined to semiconductor or solar grade (often 99.9999%+ purity) and is classified separately in HTS. The distinction matters because different duty rates, trade remedy orders, and supply chains apply to each grade.
Yes. The US has imposed antidumping and countervailing duty orders on silicon metal from multiple countries at various times. Importers should consult the current USITC and Commerce Department order lists to determine whether their supplier country and product specification are covered before finalizing purchase agreements.
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Monthly import values over time