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SITCSection 5
U.S. imports of selenium, tellurium, phosphorus, arsenic, and boron (SITC 52222) totaled $3.2M in April 2026, traded with 18 countries.
Importers of Selenium, Tellurium, Phosphorus, Arsenic, and Boron paid $93K in duties in April 2026 — an effective duty rate of 9.2% on $1.0M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataSelenium and tellurium are critical byproducts of copper refining used in photovoltaic cells, glass decolorization, and thermoelectric devices, while phosphorus, arsenic, and boron are essential dopants in semiconductor manufacturing. The strategic importance of tellurium to thin-film solar technology and of high-purity boron to nuclear and electronics industries means supply-chain concentration is a recurring concern for buyers. Arsenic and phosphorus in certain forms are regulated as hazardous substances, requiring careful compliance with EPA and DOT requirements at the point of import.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Elemental arsenic and white phosphorus are classified as hazardous materials under DOT regulations and may trigger EPA Toxic Substances Control Act reporting obligations. Importers must ensure proper hazmat labeling, packaging certification, and may need to file a TSCA certification confirming the substance is not subject to a rule or order prohibiting its import.
Ultra-high-purity boron and arsenic used as dopants in chip fabrication are produced by a limited number of specialty chemical suppliers globally. Buyers in the semiconductor supply chain typically qualify multiple sources and maintain safety stock given the small volumes but critical nature of these inputs — a supply disruption can halt wafer production lines.
Supplier Network
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| BRAZIL | -- | $7.8M | +$7.8M |
| ISRAEL | -- | $2.4M | +$2.4M |
| GERMANY | $245K | $1.5M | +$1.2M |
| PHILIPPINES | $1.3M | -- | -$1.3M |
| CHINA | $219K | $647K | +$428K |
Monthly import values over time