U.S. imports of Chlorodifluoromethane (HCFC-22) (HS 290371) totaled $192K in August 2026, imported from 1 country.
Chlorodifluoromethane (HCFC-22) imports of $192K in August 2026 ran 63% above the year-to-date monthly average of $118K.
Last updated: August 2026 dataHCFC-22 remains one of the most widely used refrigerants in residential and light-commercial air conditioning equipment, but its import is subject to EPA consumption allowances under the Montreal Protocol phaseout schedule for hydrochlorofluorocarbons. Tariff line 2903710100 covers this compound exclusively. Mexico and South Korea are the leading US import sources — a supply pattern shaped partly by the USMCA relationship with Mexico and by South Korean chemical producers' established position in the global refrigerant market. Importers must hold valid EPA HCFC allowances and are prohibited from importing HCFC-22 for use in new equipment manufactured after January 1, 2010.
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
Under the Clean Air Act's ozone-protection provisions, importers must hold EPA-issued HCFC consumption allowances equal to the quantity being imported. Allowances are allocated annually and are declining under the phaseout schedule. Imports without valid allowances are prohibited, and EPA enforces this through Customs entry documentation requirements.
Yes — HCFC-22 may still be imported and used to service existing equipment that was manufactured before the January 1, 2010 prohibition on new equipment. It cannot be used as a refrigerant in newly manufactured equipment. This servicing exemption sustains ongoing import demand, though volumes are expected to decline as older equipment is retired or retrofitted.
ImportsExports
Imports
$192KYoY · free account
Exports
$4KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $1.4M of Chlorodifluoromethane (HCFC-22).
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 · exports 7 of 12 months reported. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 290371 — Chlorodifluoromethane (HCFC-22), so the companies trading it can find you. Be the first supplier listed.
Subheading 23 of 41 in heading 2903
Subheading 290371 · $192K 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 |
|---|---|---|---|---|
| 2903710100 | Chlorodifluoromethane (Hcfc-22) | $192K | 0.00% | 0.00% |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2903710100 | Chlorodifluoromethane (Hcfc-22) | $4K |
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
customs district
destination
entry
rate provision · imports
100.0% enters free of duty; duty collected equals 0.00% of imports for consumption.