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HSChapter 29
U.S. imports of hfc-227ea, hfc-236cb, hfc-236ea, and hfc-236fa (HS 290346) totaled $378K in June 2026, traded with 4 countries.
Importers of HFC-227ea, HFC-236cb, HFC-236ea, and HFC-236fa paid $52K in duties in June 2026 — an effective duty rate of 14% on $378K in dutiable value, based on actual customs collections rather than the published tariff schedule. HFC-227ea, HFC-236cb, HFC-236ea, and HFC-236fa imports of $378K in June 2026 ran 106% above the year-to-date monthly average of $184K.
Subject to Section 301 tariffs when sourced from China, these C3 hydrofluorocarbons are widely used as fire-suppression agents and refrigerant blending components. HFC-227ea in particular is a primary active ingredient in clean-agent fire-extinguishing systems for data centers and aircraft. All four compounds fall under a single US tariff line (2903461000) and are regulated as high-global-warming-potential substances under EPA's Significant New Alternatives Policy program. China leads US supply, with Germany and Mexico as secondary sources.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Imports from China are subject to Section 301 tariffs. Importers should verify the applicable action list and current rate with a licensed customs broker, as rates and product coverage can change.
EPA's Significant New Alternatives Policy (SNAP) program evaluates HFCs as substitutes for ozone-depleting substances. Some end uses for these compounds may be restricted or phased out under SNAP rulings, so importers should confirm the intended application is still an approved use before placing orders.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| NETHERLANDS | -- | $6.7M | +$6.7M |
| SAUDI ARABIA | -- | $847K | +$847K |
| KOREA, SOUTH | -- | $624K | +$624K |
| CHINA | $378K | -- | -$378K |
| EGYPT | -- | $211K | +$211K |
Monthly import values over time
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 | Duty Collected |
|---|---|---|---|---|---|
| 2903461000 | HFC-227EA, HFC-236CB, HFC-236EA AND HFC-236FA | $378K | 13.70% | 100.00% | $52K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2903461000 | HFC-227EA, HFC-236CB, HFC-236EA AND HFC-236FA | $8.5M |
NUCLEIC ACIDS & SALTS; OTHER HETEROCYCLIC CMP, NES
HS 293499
POLYPEPTIDE PROTEIN& GLYCOPROTEIN HORMONES &DERIV
HS 293719
CMPDS CONT AN UNFUSED PYRIDINE RING ETC NESOI
HS 293339
BENZENE
HS 290220
HETEROCYCLIC COMP W NITROGEN HETERO-ATM ONLY NESOI
HS 293399
HETEROCYCLIC COMP WITH UNFUSED PYRAZOLE RING NESOI
HS 293319
| State | Imports | Exports | Balance |
|---|---|---|---|
| Louisiana | -- | $6.7M | +$6.7M |
| Massachusetts | -- | $1.1M | +$1.1M |
| Pennsylvania | -- | $624K | +$624K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| NEW ORLEANS, LA | -- | $6.7M | +$6.7M |
| NEW YORK, NY | -- | $1.1M | +$1.1M |
| JFK INTERNATIONAL AIRPORT, NY | -- | $624K | +$624K |