Tariff reference › Chapter 31 › 3104.30.00.00
HTS 3104.30.00.00 — Potassium sulfate
The current US import duty for Potassium sulfate (HTS 3104.30.00.00) — the base rate, any Section 301/232/122 surcharge that applies, and what's changed recently.
Mineral or chemical fertilizers, potassic: › Potassium sulfate
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=3104.30.00.00&origin=&value=. Current as of USITC 2026HTSRev10 (synced 2026-06-12).