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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 290351)

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 290351) has 132 U.S. import bill-of-lading shipment records between May 2022 and Aug 2026. The largest U.S. importer of 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) is THE CHEMOURS COMPANY FC LLC, with 74 shipments, followed by THE CHEMOURS COMPANY and HONEYWELL INTERNATIONAL. The leading supplier is CHEMOURS NETHERLANDS BV, with 85 shipments, followed by CHEMOURS NETHERLANDS B V and NAVIN FLUORINE INTERNATIONAL LTD. Goods originate mainly from NETHERLANDS and CHINA, arriving primarily at HOUSTON, TX. Import volume has declined over the past 12 months versus the prior year.

Sourced from U.S. Customs bill of lading data · Updated monthly · Data through August 2026Cite as: ImportDoor, U.S. Customs bill of lading data (data through August 2026), https://www.importdoor.com/products/290351-2-3-3-3-tetrafluoropropene-hfo-1234yf-1-3-3-3-tetrafluoropropene-hfo-1234ze-and-z-1-1-1-4-4-4-hexafluoro-2-but

See all 132 shipments of HS 290351 with dates, ports, consignees, filters and CSV export in the ImportDoor dashboard.

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Total shipments
132
First seen
May 2022
Last seen
Aug 2026
Origin countries
8

Shipments by month (last 24 months)

Sep 2024Aug 2026

Trade flow: top suppliers → U.S. importers

The strongest supplier-importer relationships 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) (HS 290351), by shipment volume. Hover a ribbon for details; click a name to open its profile.

The largest relationship is CHEMOURS NETHERLANDS BV → THE CHEMOURS COMPANY FC LLC with 55 shipments, followed by CHEMOURS NETHERLANDS BV → THE CHEMOURS COMPANY (30) and CHEMOURS NETHERLANDS B V → THE CHEMOURS COMPANY FC LLC (19).

Top U.S. importers

ImporterShipments
THE CHEMOURS COMPANY FC LLC74
THE CHEMOURS COMPANY32
HONEYWELL INTERNATIONAL9
MEXICHEM FLUOR INC8
AC PRODUCTS USA2
HONEYWELL INTERNATIONAL INC2
DHL COSTA RICA SA1
LOUISVILLE PACKAGING1
PENTRADE GLOBAL LLC1
SAS SHALLAN CARS1
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Top suppliers

SupplierShipments
CHEMOURS NETHERLANDS BV85
CHEMOURS NETHERLANDS B V19
NAVIN FLUORINE INTERNATIONAL LTD11
MEXICHEM FLUOR TAIWAN LIMITED8
CHEMOURS INTERNATIONAL OPS SARL2
ARCTIC HAYES1
ARCTIC HAYES LTD1
BMW AG CDC BRUCKBERG LA WERK1
CHEMOURS INTERNATIONAL OPERATIONS S1
COLEX INTERNATIONAL SA1
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Origin countries

CountryShipments
NETHERLANDS106
CHINA10
ROMANIA7
INDIA4
GERMANY2
BELGIUM1
UNITED KINGDOM1
MEXICO1

Ports of unlading

U.S. portShipments
HOUSTON, TX118
CHARLESTON, SC4
NEW YORK/NEWARK AREA, NEWARK, NJ4
MIAMI, FL3
NEW ORLEANS, LA2
WILMINGTON, NC1

Harmonized System classification

HS code 290351 — 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 Harmonized System is the international standard for classifying traded goods; U.S. Customs records this 6-digit code on every bill of lading.

Not sure this is the right code? Search all 5,700+ subheadings with the free HS code lookup, or see which product categories are growing in our quarterly State of U.S. Imports reports.

More products under HS 2903

Other six-digit codes in HS 2903: Halogenated derivatives of hydrocarbons, with their U.S. import volume.

Product (HS code)Shipments
Trifluoromethane (HFC-23) (290341)46,003
Ethylene dibromide (ISO) (1,2-dibromoethane) (290362)15,674
Saturated fluorinated derivatives of acyclic hydrocarbons, other (290349)11,783
Pentafluoroethane (HFC-125), 1,1,1-trifluoroethane (HFC-143a) and 1,1,2-trifluoroethane (HFC-143) (290344)4,314
Chloromethane (Methyl chloride) and chloroethane (Ethyl chloride) (290311)2,865
Unsaturated chlorinated derivatives of acyclic hydrocarbons, other (290329)2,536
Fluoromethane (HFC-41), 1,2-difluoroethane (HFC-152) and 1,1-difluoroethane (HFC-152a) (290343)2,004
Dichloromethane (Methylene chloride) (290312)1,117
Saturated chlorinated derivatives of acyclic hydrocarbons, other (290319)1,107
Brominated or iodinated derivatives of acyclic hydrocarbons, other (290369)702

Frequently asked questions about importing 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)

Who imports 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 290351)?

Based on U.S. Customs bill-of-lading records, the top U.S. importers of 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) include THE CHEMOURS COMPANY FC LLC, THE CHEMOURS COMPANY, HONEYWELL INTERNATIONAL, MEXICHEM FLUOR INC, and AC PRODUCTS USA.

Who is the largest U.S. importer of 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 CHEMOURS COMPANY FC LLC is the largest U.S. importer of 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 290351), with 74 bill-of-lading shipment records.

Who are the top suppliers of 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)?

Leading suppliers shipping 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 290351) to the U.S. include CHEMOURS NETHERLANDS BV, CHEMOURS NETHERLANDS B V, NAVIN FLUORINE INTERNATIONAL LTD, MEXICHEM FLUOR TAIWAN LIMITED, and CHEMOURS INTERNATIONAL OPS SARL.

How many U.S. shipments of 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) are there?

ImportDoor has 132 U.S. import shipment records under HS code 290351, spanning May 2022 to Aug 2026.

Where is 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) imported from?

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) is imported into the U.S. primarily from NETHERLANDS, CHINA, and ROMANIA.

Find 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) importers & suppliers

Get the complete list of U.S. importers and global suppliers for HS 290351, with contact details and container-level shipment records on ImportDoor.

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HS Code 290351: 2,3,3,3-Tetrafluoropropene,1,3,3,3-tetrafluor | US Importers & Suppliers