Tariff reference › Chapter 29 › 2903.51.10.00
HTS 2903.51.10.00 — 2,3,3,3-Tetrafluoropropene (HFO-1234yf),1,3,3,3-tetrafluoropropene (HFO-1234ze) and (Z)-1,1,1,4,4,4-hexafluoro-2-butene (HFO-1336mzz)
The current US import duty for 2,3,3,3-Tetrafluoropropene (HFO-1234yf),1,3,3,3-tetrafluoropropene (HFO-1234ze) and (Z)-1,1,1,4,4,4-hexafluoro-2-butene (HFO-1336mzz) (HTS 2903.51.10.00) — the base rate, any Section 301/232/122 surcharge that applies, and what's changed recently.
Halogenated derivatives of hydrocarbons: › Unsaturated fluorinated derivatives of acyclic hydrocarbons: › 2,3,3,3-Tetrafluoropropene (HFO-1234yf),1,3,3,3-tetrafluoropropene (HFO-1234ze) and (Z)-1,1,1,4,4,4-hexafluoro-2-butene (HFO-1336mzz)
Current US duty rate
| Column 1 (General / MFN) | 3.7% |
|---|---|
| Special (FTA programs) | Free(A, AU, BH,CL, CO, D, E, IL, JO, K, KR, MA, OM, P, PA, PE, S, SG) |
| Column 2 (other) | 25% |
Additional duties may apply, depending on country of origin: 9903.90.08.
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=2903.51.10.00&origin=&value=. Current as of USITC 2026HTSRev13 (synced 2026-07-29).