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Tariff referenceChapter 38 › 3824.99.75

HTS 3824.99.75 — Naphthenic acids, their water-insoluble salts and their esters

The current US import duty for Naphthenic acids, their water-insoluble salts and their esters (HTS 3824.99.75) — the base rate, any Section 301/232/122 surcharge that applies, and what's changed recently.

Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included: › Other: › Other: › Other: › Other: › Other: › Naphthenic acids, their water-insoluble salts and their esters

Current US duty rate

Column 1 (General / MFN)3.7%
Special (FTA programs)Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
Column 2 (other)25%

Additional duties may apply, depending on country of origin: Section 301 (China) — List 3 — 9903.88.03 (+25%).

Alert me when this code changes (free) See all recorded changes

Programmatic access: the full duty stack (base + surcharges + MPF/HMF for a given origin & value) is at /duty?code=3824.99.75&origin=&value=. Current as of USITC 2026HTSRev10 (synced 2026-06-12).