China Corrosion Inhibitors Face Possible New Tariffs
Published Date: 6/4/2026
Notice
Summary
The U.S. Department of Commerce found that some Chinese companies sold corrosion inhibitors at unfairly low prices from March 2024 to February 2025. This means these companies might face extra duties to level the playing field for U.S. businesses. The review results are preliminary, and folks involved can share their thoughts before final decisions come later.
Analyzed Economic Effects
5 provisions identified: 0 benefits, 5 costs, 0 mixed.
Preliminary Dumping Margins Assigned
Commerce preliminarily found weighted-average dumping margins for subject Chinese exporters for the March 1, 2024–February 28, 2025 period: Anhui Trust Chem/Jiangsu Trust Chem/Nanjing Trust Chem — 61.51%; Nantong Botao Chemical Co., Ltd. — 86.96%; Gold Chemical Limited — 73.75%; Kanghua Chemical Co., Ltd. — 73.75%. These preliminary margins are the basis for possible antidumping duties if the final results uphold them.
China-Wide Entity Rate Remains 241.02%
Commerce states that the China-wide entity assessment rate of 241.02 percent remains in effect and will apply to companies Commerce treats as part of the China-wide entity. Six companies listed in Appendix II are preliminarily considered part of the China-wide entity and would be subject to a 241.02% ad valorem assessment on entries they produced and/or exported if the final results continue this treatment.
Cash Deposit Rules for Final Results
When the final results are published, cash deposit requirements will apply to shipments entered or withdrawn for consumption on or after the publication date. Rules include: (1) companies with a separate rate will have the cash deposit rate set by the final results (unless zero or de minimis); (2) exporters previously investigated keep their existing exporter-specific rate; (3) Chinese exporters without a separate rate will face the China-wide 241.02% deposit; and (4) non-Chinese exporters without their own rate will take the rate of the Chinese exporter that supplied them.
Importer Reimbursement Certification Requirement
Importers must file a certificate regarding reimbursement of antidumping and/or countervailing duties prior to liquidation of the relevant entries under 19 CFR 351.402(f)(2). If an importer fails to file the certificate, Commerce may presume reimbursement occurred and could assess double antidumping duties and/or increase antidumping duties by the amount of any countervailing duties.
How Commerce Will Assess Duties on Entries
If the mandatory respondents' margins are not zero or de minimis, Commerce intends to calculate importer-specific assessment rates using the ratio of total dumping for an importer's examined sales to the total entered value of those sales. If entered values are missing, Commerce will calculate a per-unit assessment rate based on examined sales quantity. If an importer-specific ad valorem rate is zero or de minimis (less than 0.50 percent), Commerce will instruct CBP to liquidate entries without regard to antidumping duties.
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Key Dates
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