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SITCSection 5
U.S. imports of carboxylic acids with additional oxygen functions, nes — anhydrides, halides, peroxides & derivatives (SITC 51396) totaled $35.5M in April 2026, traded with 20 countries.
Importers of Carboxylic Acids with Additional Oxygen Functions, NES — Anhydrides, Halides, Peroxides & Derivatives paid $4.3M in duties in April 2026 — an effective duty rate of 16% on $26.7M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataClassified under the catch-all position for oxygen-functionalized carboxylic acids not elsewhere specified, this grouping captures a chemically diverse set of industrial intermediates — including anhydrides, halides, peroxides, and peroxyacids — used across pharmaceuticals, agrochemicals, polymer synthesis, and specialty coatings. The NES designation means classification disputes are common: importers must confirm that the specific compound does not fall under a more specific SITC or HTS heading before using this code. Many derivatives in this group are subject to Section 301 tariff scrutiny depending on their country of origin and precise chemical identity.
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The NES designation applies only when the compound cannot be classified under a more specific carboxylic acid heading. Importers should obtain a binding ruling from CBP or consult a licensed customs broker, as misclassification between specific and NES positions is a common audit trigger for organic chemicals.
Not necessarily. While they fall within this broad SITC grouping, peroxyacids and acid halides may carry distinct HTS classifications with different duty rates and may trigger additional regulatory review under EPA or DOT hazmat rules depending on their reactivity profile. Verify the precise 10-digit HTS code before entry.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| INDIA | $11.8M | $31K | -$11.8M |
| CHINA | $10.6M | $32K | -$10.5M |
| CANADA | $5.7M | $185K | -$5.6M |
| AUSTRALIA | $2.5M | $7K | -$2.5M |
| UNITED KINGDOM | $2.4M | $4K | -$2.4M |
Monthly import values over time