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HSChapter 29
U.S. imports of thiophosphoric esters and their salts, nesoi (HS 292019) totaled $648K in April 2026, traded with 5 countries.
Importers of Thiophosphoric Esters and Their Salts, NESOI paid $78K in duties in April 2026 — an effective duty rate of 33% on $236K in dutiable value, based on actual customs collections rather than the published tariff schedule. Thiophosphoric Esters and Their Salts, NESOI imports of $648K in April 2026 ran 55% above the year-to-date monthly average of $418K.
Last updated: April 2026 dataThiophosphoric esters — organophosphorus compounds in which one or more oxygen atoms in the phosphate group are replaced by sulfur — are widely used as pesticide active ingredients (e.g., parathion-type insecticides) and as lubricant additives. The US schedule separates aromatic (2920194000) from non-aromatic (2920195000) members within this residual heading. Mexico leads US import supply, followed by Germany and China — a supplier mix that reflects both USMCA-advantaged chemical manufacturing in Mexico and established European and Asian specialty-chemical producers.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Yes. Thiophosphoric esters imported as pesticide active ingredients or formulated pesticides must be covered by a valid EPA registration under FIFRA. Shipments may be subject to EPA review at the port of entry, and the importer of record bears responsibility for ensuring registration and labeling compliance. Consult a licensed customs broker and regulatory counsel with EPA pesticide expertise before importing.
The aromatic designation applies when the thiophosphoric ester has one or more ester groups directly bonded to an aromatic ring system. Non-aromatic thiophosphoric esters, where all ester substituents are aliphatic or cycloaliphatic, fall under 2920195000. For compounds with ambiguous structures — such as mixed aryl-alkyl thiophosphates — the GRI classification rules and, if necessary, a CBP binding ruling should be used to confirm the correct 10-digit line.
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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 |
|---|---|---|---|---|
| 2920195000 | OTHER NON-AROM THIOPHOSPHORIC ESTERS AND SALTS ETC | $453K | 38.70% | $58K |
| 2920194000 | OTHER AROMAT THIOPHOSPHORIC ESTERS AND SALTS ETC | $195K | 22.82% | $19K |
OTHER NON-AROM THIOPHOSPHORIC ESTERS AND SALTS ETC
OTHER AROMAT THIOPHOSPHORIC ESTERS AND SALTS ETC
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2920190000 | THIOPHOSPHORIC EST AND THEIR SALTS AND DERIV NESOI | $47K |
THIOPHOSPHORIC EST AND THEIR SALTS AND DERIV NESOI
20.4K kg
NUCLEIC ACIDS & SALTS; OTHER HETEROCYCLIC CMP, NES
HS 293499
HETEROCYCLIC COMP W NITROGEN HETERO-ATM ONLY NESOI
HS 293399
POLYPEPTIDE PROTEIN& GLYCOPROTEIN HORMONES &DERIV
HS 293719
CMPDS CONT AN UNFUSED PYRIDINE RING ETC NESOI
HS 293339
COMP WITH PYRIMIDINE OR PIPERAZINE RING, NESOI
HS 293359
ANTIBIOTICS, NESOI
HS 294190
| State | Imports | Exports | Balance |
|---|---|---|---|
| Kentucky | $235K | -- | -$235K |
| California | $151K | -- | -$151K |
| New Mexico | $110K | -- | -$110K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LAREDO, TX | $271K | -- | -$271K |
| BROWNSVILLE, TX | $141K | -- | -$141K |
| LOS ANGELES, CA | $96K | -- | -$96K |