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2,3,3,3-TETRAFLUOROPROPENE (HFO-1234YF), 1,3,3,3-TETRAFLUOROPROPENE (HFO-1234ZE) AND (Z)-1,1,14,4,4-HEXAFLUORO-2-BUTENE (HFO-1336MZZ)
U.S. imports of hfo-1234yf, hfo-1234ze and hfo-1336mzz (HS 290351) totaled $21.3M in December 2025, a 78.9% increase from the previous year. CHINA is the top supplier (92%), followed by KOREA, SOUTH (6%) and MEXICO (2%).
Total Import Value
$21,292,530
YTD Imports
$86.8M
Source Countries
6
CIF Value
$21.4M
Duty Collected
$2.7M
Air Freight
$182K
Vessel
$7.1M
Container
$7.1M
Monthly import values over time
Top source countries by import value
| # | Country | Share | Import Value | CIF Value | Air | Vessel |
|---|---|---|---|---|---|---|
| 1 | CHINA | 100% | $19.6M | $19.6M | $0 | $6.0M |
| 2 | KOREA, SOUTH | 6% | $1.3M | $1.3M | $182K | $1.1M |
| 3 | MEXICO | 2% | $390K | $390K | $0 | $0 |
| 4 | CANADA | 0% | $21K | $21K | $0 | $0 |
| 5 | UNITED KINGDOM | 0% | $0 | $0 | $0 | $0 |
| 6 | JAPAN | 0% | $0 | $0 | $0 | $0 |