Standard International Trade Classification
U.S. imports of Doped Chemical Elements & Compounds for Electronics (Wafers, Discs & Similar Forms) (SITC 59850) totaled $277.7M in August 2026, imported from 42 countries.
Importers of Doped Chemical Elements & Compounds for Electronics (Wafers, Discs & Similar Forms) paid $2.7M in duties in August 2026, an average duty rate of 0.98% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Doped Chemical Elements & Compounds for Electronics (Wafers, Discs & Similar Forms) imports of $277.7M in August 2026 ran 58% above the year-to-date monthly average of $175.6M.
Last updated: August 2026 dataIntentional doping with trace elements — such as boron, phosphorus, or arsenic — transforms semiconductor-grade silicon, germanium, and compound semiconductors into the active materials that underpin integrated circuits, photovoltaic cells, and optoelectronic devices. Products in this heading arrive as polished wafers, epitaxial discs, or similar precision-cut forms, and their specifications (dopant concentration, crystal orientation, resistivity, diameter) are tightly controlled to semiconductor fab standards. Supply chains for doped semiconductor materials are geographically concentrated and subject to export-control regimes in multiple jurisdictions, making sourcing diversification a strategic concern for US electronics manufacturers.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
3.2K import shipments a month
Yes. Many doped semiconductor materials are controlled under the Export Administration Regulations (EAR) and equivalent regimes in supplier countries. Importers should verify whether the specific material, dopant type, and specification level trigger EAR licensing requirements or foreign export license obligations, and should work with trade compliance counsel to assess dual-use classification.
Key parameters include crystal orientation (e.g., <100> or <111>), resistivity range (which reflects dopant concentration), total thickness variation (TTV), surface roughness, and wafer diameter. These are typically governed by SEMI standards and are specified in purchase contracts; deviations can render an entire lot unusable, making pre-shipment inspection and certificate of conformance documentation critical.
Basic heading 10 of 465 in section 5
Basic heading 59850 · $277.7M of $27.5B
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Imports · August 2026
origin
Taiwan and Japan together supply 56% of it.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$277.7MYoY · free account
Exports
$143.5MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $2.0B of Doped Chemical Elements & Compounds for Electronics (Wafers, Discs & Similar Forms) and exported $1.7B.
Through August 2026. Source: U.S. Census Bureau.