AD ORDER China A-570-028 (AD)

U.S. Antidumping Duty on Hydrofluorocarbon (HFC) Blends from China (A-570-028)

This is an educational summary — NOT a scope determination or filing advice. It does not decide whether your specific goods are covered. Always verify against the latest U.S. Commerce and CBP instructions.

Hydrofluorocarbon (HFC) blends from China may be affected by U.S. antidumping duty order A-570-028.

Case snapshot

Product	Hydrofluorocarbon Blends
Country	China
Case type	AD
Case number(s)	A-570-028 (AD)
Status	Active / continued
Scope control	Commerce written scope language
HTS role	Reference / screening only
Rate note	Varies by exporter/producer and administrative review

Key dates

A-570-028 (AD)	Federal Register: 2025-08 FR notice 2025-14634 (Opportunity to Request Review)
Status as of	Active — 2026-07-03
Expiration	No fixed expiration date. AD/CVD orders remain in place subject to five-year sunset reviews, and stay active unless revoked after Commerce/ITC review or other Commerce action.
Last checked by ETDETA	2026-07-03

Effective/entry-specific deposit and liquidation treatment depends on Commerce and CBP instructions, not only the publication date.

This educational explainer covers the U.S. antidumping (AD) duty order A-570-028 on hydrofluorocarbon (HFC) blends from China (the People's Republic of China). It is an AD order only; no countervailing (CVD) order is listed here. Importers of HFC refrigerant blends should review whether their goods may fall within its scope.

Scope — simplified screening examples, not full legal scope

The official written scope controls. The examples below are screening references only.

Products that may be covered (examples)

•Refrigerant blends composed of two or more hydrofluorocarbon (HFC) components
•Common HFC-based refrigerant mixtures used in air conditioning and refrigeration systems
•HFC blends imported in bulk or cylinders for resale or servicing
•HFC blends classified for convenience under HTSUS 3824.78.0020 or 3824.78.0050
•Mixtures made entirely of HFC constituent chemicals
•HFC blends of Chinese origin repackaged for the U.S. market

Products that may require separate review or may fall outside this order

?Refrigerant blends containing chlorofluorocarbons (CFCs)
?Blends containing hydrochlorofluorocarbons (HCFCs)
?Blends containing hydrocarbons (HCs)
?Blends containing hydrofluoroolefins (HFOs)
?Certain patented HFC blends such as ISCEON, Genetron Performax LT, and Choice branded blends named in the scope

Scope control: The HTSUS subheadings (e.g., 3824.78.0020 and 3824.78.0050) are provided for screening and customs convenience only; Commerce's written scope description is dispositive, and single-component HFCs or blends including non-HFC chemicals may fall outside it.

Who it affects

This typically matters for importers, distributors, and HVAC/refrigeration service suppliers bringing HFC refrigerant blends of Chinese origin into the United States, especially those sourcing bulk or cylinder-packaged product.

What the duty means

AD duties are collected as cash deposits at entry; rates vary by exporter/producer and administrative review and can be substantial. A 0% cash-deposit rate is NOT an exemption — the order still applies and entries must be declared. Only an AD order is listed here, so no separate CVD deposit is indicated.

Importer checklist — how to assess your risk

☐Gather the commercial invoice with the exact chemical description of the blend.
☐Obtain product photos, spec sheets, and safety data sheets (SDS) for the material.
☐Confirm the full material/chemical composition to see if any non-HFC component (CFC, HCFC, HC, or HFO) is present.
☐Document the intended use and packaging (bulk, cylinder, resale).
☐Collect country-of-origin support and manufacturer, producer, and exporter names.
☐Verify the specific producer/exporter combination against current Commerce results.
☐Screen the HTS classification but rely on Commerce's written scope language, not the code.
☐Confirm scope questions with a licensed customs broker or trade counsel; do not rely only on supplier statements.
☐Check the current cash-deposit rate against the latest Commerce review results and CBP AD/CVD messages before filing.

Risks to watch

⚠Circumvention or transshipment findings if goods are routed through third countries.
⚠Exposure to Commerce scope inquiries where blend composition is ambiguous.
⚠Applying the wrong exporter/producer combination and thus an incorrect deposit rate.
⚠Misdeclaration penalties for failing to declare merchandise that may fall within the order.

The same product can be subject to separate orders from different origins, so importers should independently verify each country of origin rather than assuming coverage is limited to China (this is not evasion guidance).

FAQ

Is there antidumping duty on HFC blends from China?

There is an antidumping (AD) duty order, A-570-028, on hydrofluorocarbon (HFC) blends from China. Whether your specific product is covered depends on Commerce's written scope, so verify the composition and origin before relying on any conclusion.

Does a 0% deposit rate mean no duty?

No. A 0% cash-deposit rate is not an exemption. The order still applies, entries must be declared, and rates may change through administrative reviews.

Are HFC single components or blends with other chemicals covered?

Blends including non-HFC chemicals such as CFCs, HCFCs, hydrocarbons, or HFOs, and certain patented named blends, are commonly outside this order, but coverage ultimately depends on Commerce's written scope — verify with a licensed broker.

Possible risk

Risk signal: Higher concern if the goods are pure HFC refrigerant blends of Chinese origin; separate review is needed for blends containing CFCs, HCFCs, HCs, or HFOs, patented named blends, single-component HFCs, repackaged product, and third-country processing.

Bottom line: HFC blends from China may be covered by AD order A-570-028; confirm the chemical composition, scope, origin, exporter/producer identity, and current deposit rates before entry.

Not a scope determination or filing advice — confirm coverage and current deposit rates with a licensed customs broker and the latest Commerce/CBP instructions before entry.

Official sources

These links are for source verification. Confirm the latest applicable rate and instructions with Commerce/CBP before entry.

· Federal Register notice (2025-08 FR notice 2025-14634 (Opportunity to Request Review))
· Commerce ACCESS — AD/CVD proceedings & scope rulings
· CBP ACE AD/CVD case search & messages
· USITC sunset/injury reviews
HTS codes are provided for reference/screening only.

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Educational summary of a public U.S. Department of Commerce AD/CVD order — not legal advice, a customs broker opinion, or a scope determination. Whether specific goods fall within an order's scope must be confirmed with a licensed customs broker and the latest Commerce/CBP notices.

Last updated: 2026-07-15