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HSChapter 28
U.S. imports of phosphorus (elemental) (HS 280470) totaled $990K in April 2026, traded with 6 countries.
Importers of Phosphorus (Elemental) paid $88K in duties in April 2026 — an effective duty rate of 8.9% on $990K in dutiable value, based on actual customs collections rather than the published tariff schedule. Phosphorus (Elemental) imports of $990K in April 2026 ran 37% below the year-to-date monthly average of $1.6M.
Last updated: April 2026 dataElemental phosphorus — classified under the single line 2804700000 — is produced in white, red, and black allotropic forms, each with distinct hazard profiles and end-use applications ranging from flame retardants and agrochemicals to semiconductor dopants. Vietnam and Kazakhstan are the leading US import sources, reflecting large-scale electric-furnace phosphorus production in those countries. White phosphorus in particular is subject to strict DOT hazardous materials regulations due to its pyrophoric nature, and certain forms may trigger EPA Toxic Substances Control Act (TSCA) reporting requirements. Importers should confirm allotrope identity and packaging compliance well before shipment, as misclassification of the allotropic form can create both safety and regulatory complications at the port.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Yes, significantly. White phosphorus is pyrophoric and classified as a DOT hazardous material requiring specialized packaging, placarding, and handling. Red phosphorus is considerably more stable and carries a different hazard classification. Both may require TSCA reporting, but white phosphorus triggers additional safety and security scrutiny at entry.
Both countries operate large electric-arc-furnace phosphorus production complexes originally developed to exploit domestic phosphate rock deposits and low-cost energy. Vietnam's facilities have expanded significantly in recent years, making it a primary source for US industrial buyers.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| BRAZIL | -- | $7.8M | +$7.8M |
| GERMANY | -- | $1.4M | +$1.4M |
| KAZAKHSTAN | $525K | -- | -$525K |
| CANADA | -- | $389K | +$389K |
| CHINA | $188K | -- | -$188K |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 2804700000 | PHOSPHORUS | $990K | 8.91% | $88K |
PHOSPHORUS
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2804700000 | PHOSPHORUS | $9.6M |
PHOSPHORUS
1.8M kg
URANIUM ENRICHED IN U235 ETC. PLUTONIUM ETC.
HS 284420
NATURAL URANIUM & COMPOUNDS, ALLOYS & CERAMICS ETC
HS 284410
ANHYDROUS AMMONIA
HS 281410
ALLOYS, DISPERSIONS,ISOTOPES & COMPOUNDS NES
HS 284443
SILICON, UNDER 99.99% (BY WEIGHT) SILICON
HS 280469
PHOSPHORIC ACID AND POLYPHOSPHORIC ACIDS
HS 280920
| State | Imports | Exports | Balance |
|---|---|---|---|
| Idaho | -- | $8.2M | +$8.2M |
| Illinois | $188K | $1.4M | +$1.2M |
| South Carolina | $525K | -- | -$525K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| NEW ORLEANS, LA | -- | $9.2M | +$9.2M |
| CHARLESTON, SC | $525K | -- | -$525K |
| DETROIT, MI | -- | $389K | +$389K |