U.S. imports of Pentafluoroethane (HFC-125), HFC-143a, and HFC-143 (HS 290344) totaled $4.8M in August 2026, imported from 3 countries.
Importers of Pentafluoroethane (HFC-125), HFC-143a, and HFC-143 paid $748K in duties in August 2026, an average duty rate of 15.45% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Pentafluoroethane (HFC-125), HFC-143a, and HFC-143 imports of $4.8M in August 2026 ran 53% above the year-to-date monthly average of $3.2M.
Last updated: August 2026 dataHFC-125 (pentafluoroethane) and HFC-143a (1,1,1-trifluoroethane) are key components of widely used refrigerant blends such as R-410A and R-404A, making this heading central to the commercial HVAC and refrigeration supply chain. The US HTS schedule provides individual 10-digit lines for HFC-125 (2903441010), HFC-143a (2903441020), and HFC-143 (2903441030), in addition to a combined line (2903441000). The United Arab Emirates and India lead US imports, with China as a third source — a supplier concentration that creates exposure to AIM Act allowance constraints and Section 301 tariff considerations for Chinese-origin material.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
20 import shipments a month
The individual 10-digit lines (2903441010, 2903441020, 2903441030) allow CBP and EPA to track each substance separately for AIM Act allowance accounting and statistical purposes. The combined line (2903441000) may apply in transitional or legacy contexts. Importers should classify at the most specific applicable line to ensure accurate regulatory reporting.
EPA's AIM Act phasedown reduces the total allowable HFC consumption in the US on a scheduled basis. Importers must hold sufficient EPA allowances to cover each shipment, and allowance availability tightens as the phasedown progresses. Procurement teams should factor allowance lead times and potential secondary-market allowance costs into supply planning.
ImportsExports
Imports
$4.8MYoY · free account
Exports
$1.7MYoY · free account
Low of 11 reported months · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $40.8M of Pentafluoroethane (HFC-125), HFC-143a, and HFC-143 and exported $27.3M.
Through August 2026 · imports 11 of 12 months reported. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 290344 — Pentafluoroethane (HFC-125), HFC-143a, and HFC-143, so the companies trading it can find you. Be the first supplier listed.
Subheading 4 of 41 in heading 2903
Subheading 290344 · $4.8M of $50.6M
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 |
|---|---|---|---|---|---|
| 2903441010 | 1,1,1,2,2-Pentafluorethane (Hfc-125) | $4.0M | 15.38% | 100.00% | $616K |
| 2903441020 | 1,1,1-Trifluoroethane (Hfc-143a) | $836K | 15.79% | 100.00% | $132K |
| 2903441030 | 1,1,2-Trifluoroethane (Hfc-143) | — | -- | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2903441000 | Pentafluoroethane (Hfc-125), Hfc-143a and Hfc-143 | $1.7M |
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
United Arab Emirates and India together supply 83% of it.
customs district
destination
entry
rate provision · imports
duty collected equals 15.45% of imports for consumption.