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HSChapter 29
U.S. imports of dimethyl phosphite (HS 292021) totaled $108K in June 2026, traded with 2 countries.
Importers of Dimethyl Phosphite paid $15K in duties in June 2026 — an effective duty rate of 14% on $108K in dutiable value, based on actual customs collections rather than the published tariff schedule. Dimethyl Phosphite imports of $108K in June 2026 ran 42% below the year-to-date monthly average of $186K.
Dimethyl phosphite (DMP) is a phosphorus-based ester widely used as a chemical intermediate in the synthesis of agrochemicals, flame retardants, and pharmaceutical compounds. Germany leads US import supply, with India and China as significant additional sources — a supplier mix that exposes importers to Section 301 tariff considerations on Chinese-origin material. Classified under a single 10-digit line (2920210000), classification is straightforward, but purity specifications and end-use documentation are critical for downstream regulatory compliance.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Yes. Imports of dimethyl phosphite originating from China may be subject to Section 301 tariffs. Importers should confirm the applicable tariff action and any exclusion orders with a licensed customs broker before entry.
Importers generally need a commercial invoice with full chemical identity (CAS number, purity grade), a Safety Data Sheet, and country-of-origin documentation. Because DMP is a precursor chemical, some shipments may also require review under chemical control regulations depending on end use.
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Monthly import values over time
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2920210000 | DIMETHYL PHOSPHITE | $108K | 13.70% | 100.00% | $15K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2920210000 | DIMETHYL PHOSPHITE | $39K |
NUCLEIC ACIDS & SALTS; OTHER HETEROCYCLIC CMP, NES
HS 293499
POLYPEPTIDE PROTEIN& GLYCOPROTEIN HORMONES &DERIV
HS 293719
CMPDS CONT AN UNFUSED PYRIDINE RING ETC NESOI
HS 293339
BENZENE
HS 290220
HETEROCYCLIC COMP W NITROGEN HETERO-ATM ONLY NESOI
HS 293399
HETEROCYCLIC COMP WITH UNFUSED PYRAZOLE RING NESOI
HS 293319
| Country | Imports | Exports | Balance |
|---|---|---|---|
| GERMANY | $108K | -- | -$108K |
| MEXICO | -- | $24K | +$24K |
| KOREA, SOUTH | -- | $12K | +$12K |
| IRELAND | -- | $4K | +$4K |
| CHINA | -- | -- | -- |
| State | Imports | Exports | Balance |
|---|---|---|---|
| South Carolina | $108K | $24K | -$85K |
| New York | -- | $12K | +$12K |
| Minnesota | -- | $4K | +$4K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| CHARLESTON, SC | $108K | -- | -$108K |
| LAREDO, TX | -- | $24K | +$24K |
| JFK INTERNATIONAL AIRPORT, NY | -- | $12K | +$12K |