U.S. imports of Trifluoromethane (HFC-23) (HS 290341) totaled $207K in August 2026, imported from 3 countries.
Importers of Trifluoromethane (HFC-23) paid $31K in duties in August 2026, an average duty rate of 15.13% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Trifluoromethane (HFC-23) imports of $207K in August 2026 ran 19% below the year-to-date monthly average of $256K.
Last updated: August 2026 dataHFC-23 carries one of the highest global warming potentials among hydrofluorocarbons, making it a focal point of international climate policy under the Kigali Amendment to the Montreal Protocol. Classified under 10-digit line 2903411000, US imports originate predominantly from China, with Japan and Taiwan as secondary sources. Importers should be aware that HFC-23 is subject to Section 301 tariffs on Chinese-origin goods, and EPA AIM Act regulations governing HFC production and consumption may affect import allowances and reporting requirements.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
5 import shipments a month
The AIM Act authorizes EPA to phase down HFC production and consumption in the US and to regulate their use. Importers of HFC-23 may be subject to EPA allowance requirements, and shipments may require prior EPA authorization. Compliance obligations are evolving, so importers should consult current EPA guidance before contracting supply.
Beyond standard TSCA certification, importers should be prepared to provide documentation of the compound's intended use, as EPA may require it to verify allowance eligibility. Some downstream customers also require environmental compliance certifications given HFC-23's climate impact profile.
Subheading 22 of 41 in heading 2903
Subheading 290341 · $207K of $50.6M
ImportsExports
Imports
$207KYoY · free account
Exports
$26KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $2.6M of Trifluoromethane (HFC-23) and exported $1.4M.
Fewer than 6 of the last 12 months reported trade, or the latest month was under $500K; the trend chart is not shown for thin series.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 290341 — Trifluoromethane (HFC-23), 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 |
|---|---|---|---|---|---|
| 2903411000 | Trifluoromethane (Hfc-23) | $207K | 15.13% | 100.00% | $31K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2903411000 | Trifluoromethane (Hfc-23) | $26K |
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.
Imports · August 2026
origin
China and Japan together supply 100% of it.
customs district
destination
entry
rate provision · imports
duty collected equals 15.13% of imports for consumption.