HSChapter 28
U.S. imports of phosphorus trichloride (HS 281213) totaled $479K in April 2026, traded with 2 countries.
Importers of Phosphorus Trichloride paid $66K in duties in April 2026 — an effective duty rate of 14% on $479K in dutiable value, based on actual customs collections rather than the published tariff schedule. Phosphorus Trichloride imports of $479K in April 2026 ran 24% above the year-to-date monthly average of $387K.
Last updated: April 2026 dataPhosphorus trichloride (PCl₃) is a high-volume reactive intermediate for organophosphorus chemistry, serving as a building block for pesticides, plasticizers, and specialty pharmaceuticals. Germany leads US supply, with India and China also among the top sources; the concentration of supply among these three countries means that regulatory or logistics disruptions in any one market can materially affect availability for downstream formulators. Like other phosphorus halides, PCl₃ is moisture-sensitive and corrosive, requiring careful hazardous materials compliance throughout the import process.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Phosphorus trichloride (PCl₃) contains no oxygen and classifies under HTS 2812130000, while phosphorus oxychloride (POCl₃) is an oxyhalide and classifies under 2812120000. The chemical formula and CAS number on the supplier's certificate of analysis are the definitive classification evidence; the two compounds are not interchangeable in either chemistry or tariff treatment.
Phosphorus trichloride is a precursor chemical monitored under international chemical weapons conventions, and some supplier countries impose export licensing requirements. Importers should request export compliance documentation from their supplier and verify that the shipment is accompanied by appropriate end-use certifications to avoid delays at the US port of entry.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 2812130000 | PHOSPHORUS TRICHLORIDE | $479K | 13.70% | $66K |
PHOSPHORUS TRICHLORIDE
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2812130000 | PHOSPHORUS TRICHLORIDE | $115K |
PHOSPHORUS TRICHLORIDE
44.1K 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 |
|---|---|---|---|
| Alabama | $212K | -- | -$212K |
| West Virginia | $170K | -- | -$170K |
| South Carolina | $72K | $85K | +$13K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| CHARLESTON, SC | $134K | $85K | -$49K |
| NORFOLK-NEWPORT NEWS, VA | $190K | -- | -$190K |
| PHILADELPHIA, PA | $154K | -- | -$154K |