China's R-125 Coolant Faces Final US Dumping Duties
Published Date: 3/16/2026
Notice
Summary
The U.S. Department of Commerce found that Zhejiang Sanmei sold pentafluoroethane (R-125) from China to the U.S. at unfairly low prices between March 2023 and February 2024. Zhejiang Yonghe didn’t qualify for special treatment and is grouped with other Chinese exporters. These final results, effective March 16, 2026, could affect import duties and costs for companies dealing with this chemical.
Analyzed Economic Effects
4 provisions identified: 0 benefits, 4 costs, 0 mixed.
Final dumping margins assigned
Commerce found Zhejiang Sanmei sold pentafluoroethane (R-125) to the U.S. at dumped prices for March 1, 2023 through February 29, 2024 and set a weighted-average dumping margin of 48.67%. Commerce also determined Zhejiang Yonghe is part of the China‑wide entity, which retains a China‑wide rate of 267.51%.
Cash deposit rules for R-125 imports
Effective upon publication (March 16, 2026), cash deposit requirements apply for R-125 shipments entered or withdrawn for consumption on or after that date: (1) Sanmei Companies' cash deposit rate equals the final dumping margin (48.67%); (2) exporters with previously established separate rates keep their existing deposit rates; (3) Chinese exporters without a separate rate must post the China‑wide deposit rate (267.51%); and (4) non‑Chinese exporters without their own rate must use the rate of the Chinese exporter that supplied them.
Importer reimbursement certificate requirement
Importers must file a certificate regarding reimbursement of antidumping duties under 19 CFR 351.402(f)(2) prior to liquidation of relevant entries for this review period. If an importer fails to file this certificate, Commerce may presume reimbursement occurred and assess double antidumping duties.
Duty assessment and liquidation timing
Commerce will instruct U.S. Customs and Border Protection to assess antidumping duties on all appropriate entries covered by this review. Commerce intends to issue assessment instructions no earlier than 35 days after the Federal Register publication (publication March 16, 2026), and if a timely summons is filed at the U.S. Court of International Trade, CBP will be directed not to liquidate relevant entries until the time for parties to seek a statutory injunction has expired (within 90 days of publication).
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Key Dates
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