Last reviewed: August 2026 · By the HVAC Brief Editorial Team · Our sourcing and editorial standards
Commerce has published final results of its antidumping duty administrative review on hydrofluorocarbon blends from China, finding that certain exporters sold at less than normal value during the period August 1, 2023 through July 31, 2024. The notice appeared July 30, 2026 at 91 FR 48079.
Commerce also determined that Zhejiang Yonghe Refrigerant Co., Ltd. had no shipments of subject merchandise to the United States during that period.
The docket is A-570-028. An administrative review recalculates duty rates for a defined past period rather than deciding whether an order exists, which is a different exercise from the sunset review that continued the separate R-32 order two weeks later.
What an administrative review does
- Covers a defined period. Here, August 1, 2023 to July 31, 2024.
- Recalculates rates for reviewed exporters based on sales in that window.
- Determines no-shipment status where an exporter did not ship subject merchandise, as Commerce found for Zhejiang Yonghe.
- Does not decide whether the order continues. That is the sunset review process.
HFC blends and R-32 are separate orders with separate dockets, A-570-028 and A-570-121. Both saw Commerce action within six weeks. Taken together they signal that the trade posture on imported refrigerant is being maintained rather than relaxed, at the same time the domestic supply is capped by the HFC phasedown.
Frequently asked questions
What did Commerce find on HFC blends from China?
That certain exporters sold subject merchandise at less than normal value during the review period of August 1, 2023 through July 31, 2024, published July 30, 2026 at 91 FR 48079, docket A-570-028. Commerce separately determined that Zhejiang Yonghe Refrigerant had no shipments to the United States during that period.
What is an antidumping administrative review?
A recalculation of duty rates for a defined past period based on an exporter’s sales during that window. It differs from a sunset review, which decides whether an order should continue at all. An administrative review assumes the order exists and sets rates within it.
Are HFC blends and R-32 the same proceeding?
No. They are separate antidumping orders with separate dockets, A-570-028 for HFC blends and A-570-121 for R-32. Both saw Commerce action within six weeks in mid-2026 but through different processes: an administrative review for blends and a continuation for R-32.
Sources
- US Department of Commerce, “Hydrofluorocarbon Blends From the People’s Republic of China: Final Results of Antidumping Duty Administrative Review and Final Determination of No Shipments; 2023-2024,” 91 FR 48079, published July 30, 2026, docket A-570-028.
The HVAC Brief is an independent trade publication. We do not sell equipment, take manufacturer advertising, or accept payment for placement in our research. Corrections welcome.
Leave a Reply