U.S. exports of HFC-227ea, HFC-236cb, HFC-236ea, and HFC-236fa (HS 290346) totaled $6.6M in August 2026.
Importers of HFC-227ea, HFC-236cb, HFC-236ea, and HFC-236fa paid $61K in duties in August 2026, an average duty rate of 16.20% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. HFC-227ea, HFC-236cb, HFC-236ea, and HFC-236fa imports of $374K in August 2026 ran 62% above the year-to-date monthly average of $231K.
Last updated: August 2026 dataSubject 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.
3 import shipments a month
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.
Subheading 7 of 41 in heading 2903
Subheading 290346 · $6.6M of $202.0M
ImportsExports
Imports
$374KYoY · free account
Exports
$6.6MYoY · free account
Low of 7 reported months · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $1.9M of HFC-227ea, HFC-236cb, HFC-236ea, and HFC-236fa and exported $47.0M.
Through August 2026 · imports 7 of 12 months reported. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 290346 — HFC-227ea, HFC-236cb, HFC-236ea, and HFC-236fa, so the companies trading it can find you. Be the first supplier listed.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2903461000 | Hfc-227ea, Hfc-236cb, Hfc-236ea and Hfc-236fa | $374K | 16.20% | 100.00% | $61K |
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 | $6.6M |
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.
Exports · August 2026
destination
Netherlands and United Kingdom together take 73% of it.
customs district
origin
entry
rate provision · imports
duty collected equals 16.20% of imports for consumption.