# 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.

> Section VI · Products of the chemical or allied industries
> Chapter 29 · Organic chemicals

**HS code:** `290351`

## 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

| Country | Rate | Programme |
| --- | --- | --- |
| US United States | 3.7% | MFN |

Rates effective as of 2026-01-01.

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Source: https://hscode.eximagent.ai/29/290351
Last updated: 2026-06-03
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