Commerce Department Finalizes Antidumping Review on R-134a from China
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On June 22, 2026, the U.S. Department of Commerce announced the final results of its antidumping duty administrative review concerning 1,1,1,2-Tetrafluoroethane (R-134a) imported from the People’s Republic of China. This review covers the period from April 1, 2024, to March 31, 2025.
Background
The Department of Commerce had previously released preliminary results on March 12, 2026. They invited interested parties to comment on those results, but no comments were received. Therefore, the findings remain unchanged from the preliminary stage.
Key Findings
The Commerce Department determined that Zhejiang Sanmei Chemical Industry Co., Ltd., Jiangsu Sanmei Chemicals Co., Ltd., and Fujian Qingliu Dongying Chemical Industry Co., Ltd. (combined as “Sanmei”) did not qualify for separate rates. Alongside Sanmei, 23 other companies also failed to qualify for separate rates. This determination means they are all part of the China-wide entity.
China-Wide Entity
All companies under review that could not demonstrate eligibility for separate rates are treated as part of the China-wide entity. The assigned weighted-average dumping margin for the China-wide entity remains at 167.02%.
Assessment Rates
The Commerce Department will soon instruct U.S. Customs and Border Protection on the appropriate antidumping duties for this review period. Companies that did not receive a separate rate will be subject to the China-wide entity rate. Assessment instructions are expected no earlier than 35 days after this announcement.
Cash Deposit Requirements
New cash deposit requirements will be applied to shipments of R-134a entering the U.S. from China. The cash deposit rate for exporters that couldn’t secure separate rates will match the China-wide rate of 167.02%. These rates will remain effective until further notice.
Reminder to Importers
Importers are reminded of their duty to submit certifications regarding the reimbursement of antidumping duties, in compliance with federal regulations.
These decisions were made in line with U.S. trade laws, aiming to ensure fair competition between domestic and foreign products. The results of this review reflect the efforts to address any unfair pricing practices from foreign manufacturers.
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