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HSChapter 38
U.S. exports of refrigerant mixtures containing 15% or more hfc-143a (1,1,1-trifluoroethane) (HS 382761) totaled $355K in July 2026.
Refrigerant Mixtures Containing 15% or More HFC-143a (1,1,1-Trifluoroethane) imports of $3K in July 2026 ran 99% below the year-to-date monthly average of $254K.
Last updated: July 2026 dataHFC-143a (1,1,1-trifluoroethane) is a high-global-warming-potential component most commonly found in R-404A and R-507A blends, which are widely used in commercial refrigeration and low-temperature freezer applications. Blends meeting the 15% or more by mass threshold for HFC-143a are classified under tariff line 3827610000 and are subject to EPA SNAP program oversight. Mexico is the leading US supplier of these blends, followed by Japan and China, reflecting both proximity-driven logistics and established fluorochemical manufacturing capacity in those markets. Importers should be aware that Section 301 measures apply to Chinese-origin HFC blends.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
1 shipments/mo
R-404A (a ternary blend of HFC-125, HFC-143a, and HFC-134a) and R-507A (a binary blend of HFC-125 and HFC-143a) are the most prevalent commercial refrigerants that meet the 15% or more HFC-143a threshold. Both are widely used in supermarket display cases, transport refrigeration, and industrial freezing systems.
Yes. The American Innovation and Manufacturing (AIM) Act authorizes EPA to phase down HFC production and consumption through an allowance system. Importers of HFC blends containing HFC-143a must hold or acquire EPA consumption allowances, and the allowance requirements have tightened progressively since 2022. Compliance with the allowance program is a prerequisite for lawful importation.
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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share |
|---|---|---|---|---|
| 3827610000 | Mixtures Containing 15% or More by Mass Hfc-143a | $3K | 0.00% | 0.00% |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3827610000 | Mixtures Containing 15% or More by Mass Hfc-143a | $355K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$3KYoY · Pro
Exports
$355KYoY · Pro
12-mo low · imports
YoY · ProFewer than 6 of the last 12 months reported trade above $500K; the trend chart is not shown for thin series.
Through July 2026. Source: U.S. Census Bureau.
Exports · July 2026
destination
Canada and Curacao together take 92% of it.
customs district
origin
entry
rate provision · imports
100.0% enters free of duty; the effective duty rate is 0.00%.