Tariff reference › Chapter 29 › 2921.51.10.00
HTS 2921.51.10.00 — 4-Amino-2-(N,N-diethylamino) toluene hydrochloride;m-Phenylenediamine;o-Phenylenediamine; Toluene-2,4-diamine; Toluene-2,5-diamine; and Toluene-2,5-diamine sulfate
The current US import duty for 4-Amino-2-(N,N-diethylamino) toluene hydrochloride;m-Phenylenediamine;o-Phenylenediamine; Toluene-2,4-diamine; Toluene-2,5-diamine; and Toluene-2,5-diamine sulfate (HTS 2921.51.10.00) — the base rate, any Section 301/232/122 surcharge that applies, and what's changed recently.
Amine-function compounds › Aromatic polyamines and their derivatives; salts thereof: › o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof: › 4-Amino-2-(N,N-diethylamino) toluene hydrochloride;m-Phenylenediamine;o-Phenylenediamine; Toluene-2,4-diamine; Toluene-2,5-diamine; and Toluene-2,5-diamine sulfate
Current US duty rate
| Column 1 (General / MFN) | 6.5% |
|---|---|
| Special (FTA programs) | Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,L,MA,OM,P,PA,PE,S,SG) |
| Column 2 (other) | 15.4¢/kg + 48.5% |
No Chapter 99 (Section 301/232/122) cross-reference on this line; origin-specific surcharges may still apply — check the calculator.
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Programmatic access: the full duty stack (base + surcharges + MPF/HMF for a given origin & value) is at /duty?code=2921.51.10.00&origin=&value=. Current as of USITC 2026HTSRev13 (synced 2026-07-29).