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HSChapter 29
U.S. imports of cyclanic, cyclenic, and cycloterpenic monocarboxylic acids and derivatives (HS 291620) totaled $14.4M in July 2026, traded with 15 countries.
Importers of Cyclanic, Cyclenic, and Cycloterpenic Monocarboxylic Acids and Derivatives paid $644K in duties in July 2026 — an effective duty rate of 7.5% on $8.6M in dutiable value, based on actual customs collections rather than the published tariff schedule. Cyclanic, Cyclenic, and Cycloterpenic Monocarboxylic Acids and Derivatives imports of $14.4M in July 2026 ran 30% above the year-to-date monthly average of $11.0M.
Last updated: July 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.
75 shipments/mo
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.
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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 |
|---|---|---|---|---|---|
| 2916205000 | Cyclanic, Etc Monocarboxylic Acids and Their Deriv | $14.4M | 4.49% | 60.16% | $644K |
| 2916201000 | Tefluthrin | $3K | 0.00% | 0.00% | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2916205000 | Cyclanic, Etc Monocarboxylic Acid & the Driv NESOI | $18K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$14.4MYoY · Pro
Exports
$18KYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Australia and India together supply 54% of it.
customs district
destination
entry
rate provision · imports
38.8% enters free of duty; the effective duty rate is 4.48%.