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HSChapter 29
U.S. imports of cyclanic, cyclenic, and cycloterpenic monocarboxylic acids and derivatives (HS 291620) totaled $8.8M in April 2026, traded with 14 countries.
Importers of Cyclanic, Cyclenic, and Cycloterpenic Monocarboxylic Acids and Derivatives paid $331K in duties in April 2026 — an effective duty rate of 5.6% on $5.9M in dutiable value, based on actual customs collections rather than the published tariff schedule. Cyclanic, Cyclenic, and Cycloterpenic Monocarboxylic Acids and Derivatives imports of $8.8M in April 2026 ran 11% below the year-to-date monthly average of $9.8M.
Last updated: April 2026 dataTefluthrin, a pyrethroid insecticide active ingredient carved out at 2916201000, anchors the named-compound line within this heading, while the broad residual line (2916205000) captures naphthenic acids, cyclopentanecarboxylic acid derivatives, and other alicyclic monocarboxylic intermediates used in lubricant additives, agrochemicals, and specialty resins. India leads US supply, followed by Australia and Mexico. Pyrethroid intermediates like tefluthrin may be subject to EPA pesticide import requirements, and the wide chemical diversity of the residual line makes precise structural documentation essential for correct classification.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
CBP expects a complete chemical name, CAS registry number, and structural formula on the commercial invoice. For compounds that could plausibly fall under a named line (such as tefluthrin at 2916201000), importers must confirm the ISO or IUPAC identity. When the product is a mixture or technical-grade material, a certificate of analysis showing active ingredient content is also advisable.
Yes. Tefluthrin is a registered pesticide active ingredient, and imports are subject to EPA FIFRA requirements. Shipments must comply with EPA registration conditions, and importers should be prepared to provide documentation of the foreign registrant's authorization. Consult a licensed customs broker familiar with pesticide import procedures before shipment.
Monthly import values over time
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HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 2916205000 | CYCLANIC, ETC MONOCARBOXYLIC ACIDS AND THEIR DERIV | $8.7M | 5.56% | $325K |
| 2916201000 | TEFLUTHRIN | $65K | 10.00% | $6K |
CYCLANIC, ETC MONOCARBOXYLIC ACIDS AND THEIR DERIV
TEFLUTHRIN
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2916205000 | CYCLANIC, ETC MONOCARBOXYLIC ACID & THE DRIV NESOI | $603K |
| 2916201000 | TEFLUTHRIN | $0 |
CYCLANIC, ETC MONOCARBOXYLIC ACID & THE DRIV NESOI
16.2K kg
TEFLUTHRIN
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 |
|---|---|---|---|
| Texas | $1.9M | -- | -$1.9M |
| Missouri | $1.7M | -- | -$1.7M |
| New Jersey | $1.1M | $436K | -$700K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| NORFOLK-NEWPORT NEWS, VA | $2.9M | -- | -$2.9M |
| LAREDO, TX | $1.7M | -- | -$1.7M |
| HOUSTON, TX | $1.5M | -- | -$1.5M |