U.S. imports of Dichlorotrifluoroethanes (HCFC-123) (HS 290372) totaled $384K in August 2026, imported from 4 countries.
Dichlorotrifluoroethanes (HCFC-123) imports of $384K in August 2026 ran 77% above the year-to-date monthly average of $217K.
Last updated: August 2026 dataHCFC-123 is a low-pressure refrigerant used primarily as a replacement for CFC-11 in large centrifugal chillers for commercial building HVAC systems, and it also serves as a chemical intermediate in fluoropolymer production. Like other HCFCs, its import requires EPA consumption allowances under the Montreal Protocol phasedown, with the allowance cap tightening on a scheduled basis. China leads US imports under tariff line 2903720100, followed by South Korea and Singapore. The compound's relatively low ozone-depletion potential compared to CFCs has extended its commercial life, but importers should monitor EPA's phaseout timeline as the 2030 complete phaseout date approaches.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
1 import shipments a month
EPA's HCFC phaseout schedule calls for a complete elimination of HCFC consumption allowances by 2030. Chiller operators relying on HCFC-123 for equipment servicing should develop transition plans now — either retrofitting existing chillers to accept HFO or HFC alternatives, or budgeting for equipment replacement — to avoid supply disruptions as allowances become increasingly scarce in the late 2020s.
Importers must declare the quantity of HCFC-123 and demonstrate that valid EPA consumption allowances cover the shipment. CBP coordinates with EPA on HCFC imports, and entries lacking allowance documentation will be refused. Commercial invoices should clearly identify the compound by CAS number and trade name to facilitate accurate classification under 2903720100.
Subheading 18 of 41 in heading 2903
Subheading 290372 · $384K of $50.6M
Trade Directory
List your company under HS 290372 — Dichlorotrifluoroethanes (HCFC-123), 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 |
|---|---|---|---|---|
| 2903720100 | Dichlorotrifluoroethane (Hcfc-123) | $384K | 0.00% | 0.00% |
ImportsExports
Imports
$384KYoY · free account
Exports
—YoY · free account
Low of 9 reported months · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $5.1M of Dichlorotrifluoroethanes (HCFC-123).
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 · imports 9 of 12 months reported, exports 4 of 12 months reported. Source: U.S. Census Bureau.
Imports · August 2026
origin
Canada and Singapore together supply 100% of it.
customs district
destination
entry
rate provision · imports
100.0% enters free of duty; duty collected equals 0.00% of imports for consumption.