U.S. exports of 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) (HS 2903511000) totaled $35.6M in August 2026.
Importers of 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) paid $636K in duties in August 2026, an average duty rate of 12.90% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. 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) imports of $4.9M in August 2026 ran 25% below the year-to-date monthly average of $6.6M.
Last updated: August 2026 dataAverage import price $15.83/kg · 51 import shipments a month
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Statistical number 1 of 1 in subheading 290351
Exports · August 2026
destination
Netherlands and Mexico together take 66% of it.
customs district
None recorded for this period.
origin
Census publishes state breakdowns to the 6-digit level only. See HS 290351 for those.
entry
Census publishes port breakdowns to the 6-digit level only. See HS 290351 for those.
rate provision · imports
None recorded for this period.
ImportsExports
Imports
$4.9MYoY · free account
Exports
$35.6MYoY · free account
Low of 8 reported months · imports
Low · free accountThrough August 2026 · imports 8 of 12 months reported, exports 8 of 12 months reported. Source: U.S. Census Bureau.