290351 — Halogenated derivatives of 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)
HS code 290351 classifies Halogenated derivatives of 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). It belongs to Chapter 29 (Organic chemicals) of Section VI (Products of the chemical or allied industries) of the Harmonized System. Duty rates are recorded for 1 country.
Description
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)
Duty rates
US MFN base rate (HTS 2026, Column-1 General) — excludes Section 301 / IEEPA add-ons; not legal advice. Other countries’ rates and live duties via the EximAgent CLI.
- USUnited States3.7%MFNas of Jan 1, 2026
Common questions
- What is HS code 290351?
- 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)
- What duty rates apply to 290351?
- Listed duty rates range from 3.7% across 1 country rate.
Browse all of Chapter 29: Organic chemicals →
Go beyond the code
Find verified importers of 290351 — Halogenated derivatives of 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) by country, with live tariff context, OFAC sanctions screening, and ready-to-send outreach — each result confidence-tagged.