China's Tris Chemical Faces US Duty Hammer for Unfair Aid
Published Date: 9/24/2026
Notice
Summary
The U.S. Department of Commerce found that Chinese producers of Tris(hydroxymethyl)aminomethane are getting unfair government help, so they’re planning to add extra taxes to level the playing field. This affects importers and buyers of this chemical, with changes kicking in soon after September 24, 2026. The final decision will line up with related trade cases, possibly impacting prices and trade flows.
Analyzed Economic Effects
5 provisions identified: 0 benefits, 4 costs, 1 mixed.
Preliminary countervailing duty rates set
Commerce preliminarily assigned estimated countervailable subsidy (duty) rates of 117.39% ad valorem for Changzhou Peicheng Imp. & Exp. Co., 20.63% ad valorem for Suzhou Yacoo Science Co., Ltd., and 20.63% for all other producers and exporters. These are preliminary estimated rates from the investigation covering January 1, 2025 through December 31, 2025.
Cash deposit and suspension of liquidation required
Starting with entries entered or withdrawn for consumption on or after the notice publication date (September 24, 2026), U.S. Customs and Border Protection will be instructed to suspend liquidation and require cash deposits equal to the applicable preliminary estimated subsidy rate (company-specific or the all-others rate). If both producer and exporter have rates, the higher rate applies; if only one has a rate, that rate applies.
Retroactive suspension for one exporter (critical circumstances)
Commerce preliminarily found critical circumstances for imports produced and/or exported by Changzhou Peicheng, so suspension of liquidation will apply to unliquidated entries of that company's merchandise entered or withdrawn for consumption on or after the date which is 90 days before the publication of this notice. Commerce preliminarily did not find critical circumstances for Suzhou Yacoo or other companies.
Products covered: Tris and Tris HCl included
The investigation covers tris(hydroxymethyl)aminomethane (Tris, CAS 77-86-1) and tris(hydroxymethyl)aminomethane hydrochloride (Tris HCl, CAS 1185-53-1) of all grades and forms, currently classified under HTSUS 2922.19.9690. Tris manufactured in China remains covered even if processed in a third country; simple reprocessing in a third country does not remove the product from the scope.
Final CVD aligned with antidumping schedule
Commerce is aligning the final countervailing duty (CVD) determination with the final antidumping duty (AD) determination; the final CVD determination will be issued on the same date as the final AD determination, which is scheduled to be issued no later than February 1, 2027, unless postponed. This sets the expected date for the final decision.
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Key Dates
Department and Agencies
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