Tariff reference › Chapter 31 › 3102.40.00.00
HTS 3102.40.00.00 — Mixtures of ammonium nitrate with calcium carbonate or other inorganic nonfertilizing substances
The current US import duty for Mixtures of ammonium nitrate with calcium carbonate or other inorganic nonfertilizing substances (HTS 3102.40.00.00) — the base rate, any Section 301/232/122 surcharge that applies, and what's changed recently.
Mineral or chemical fertilizers, nitrogenous: › Mixtures of ammonium nitrate with calcium carbonate or other inorganic nonfertilizing substances
Current US duty rate
| Column 1 (General / MFN) | Free |
|---|---|
| Special (FTA programs) | — |
| Column 2 (other) | Free |
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=3102.40.00.00&origin=&value=. Current as of USITC 2026HTSRev10 (synced 2026-06-12).