AD/CVD Petitions Filed Against Tris From China
Summary
On April 21, 2026, Advancion Corporation filed companion antidumping and countervailing duty petitions with the U.S. International Trade Commission and the U.S. Department of Commerce concerning imports of tris(hydroxymethyl)aminomethane (Tris) from the People's Republic of China. The petitions allege dumping margins ranging from 43.89% to 965.62% and above de minimis countervailing duty margins, citing economic injury to the domestic Tris industry from Chinese imports valued at approximately $5.1 million in 2025. The investigations will proceed on an expedited schedule, with preliminary duty deposits possible if both agencies make affirmative determinations and retroactive duties potentially imposed if import surges occur following the filing.
“On April 21, 2026, Advancion Corporation ("Petitioner") filed companion antidumping and countervailing duty petitions for the imposition of antidumping and countervailing duties on U.S. imports of tris(hydroxymethyl)aminomethane (Tris) from the People's Republic of China ("China").”
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What changed
Advancion Corporation filed companion antidumping and countervailing duty petitions against Tris (tris(hydroxymethyl)aminomethane) imports from China, triggering parallel investigations before the U.S. International Trade Commission and the U.S. Department of Commerce. The scope covers Tris and Tris HCl (tromethamine) under HTSUS subheading 2922.19.9690, including all grades, purities, and forms, with country of origin based on where the Tris molecule is manufactured.
U.S. importers of Tris and Tris HCl from China, as well as foreign producers and exporters named in the petitions, should monitor the investigation schedule closely and prepare to respond to questionnaires. Preliminary antidumping and countervailing duty determinations are scheduled for late 2026 through mid-2027, with potential for retroactive duty deposits if import volumes surge following the petition filing. Businesses in the chemical manufacturing supply chain should assess their exposure to these trade remedies.
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Apr 27, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
April 27, 2026
Petition Summary: Tris(hydroxymethyl)aminomethane (“Tris”) from China
Stephen Brophy, Nithya Nagarajan Husch Blackwell LLP + Follow Contact LinkedIn Facebook X ;) Embed On April 21, 2026, Advancion Corporation (“Petitioner”) filed companion antidumping and countervailing duty petitions for the imposition of antidumping and countervailing duties on U.S. imports of tris(hydroxymethyl)aminomethane (Tris) from the People’s Republic of China (“China”).
The AD/CVD investigations will now proceed before the U.S. International Trade Commission (“ITC”) and the U.S. Department of Commerce (“Commerce”). The ITC will determine whether the domestic Tris industry is suffering material economic injury by reason of subject imports. Commerce will determine whether, and if so, to what extent, the imports are being dumped and/or subsidized. As reflected in the detailed schedule below, these cases will move quickly. Preliminary duty deposits will be imposed if Commerce and the ITC both make affirmative preliminary determinations, with a possibility for retroactive duties if there is a surge in imports in response to the petition being filed.
SCOPE OF THE INVESTIGATION
The proposed scope of these investigations is as follows:
The merchandise subject to these investigations is tris(hydroxymethyl)aminomethane, also commonly referred to as tromethamine or THAM, and its derivative, tris(hydroxymethyl)aminomethane hydrochloride (“Tris HCl”), also commonly referred as Tris hydrochloride or tromethamine HC1 (collectively, “Tris”). Tris and Tris HC1 are organic compounds with molecular compositions of C4EIHNO3 and C4HiiNO3.C1H, respectively. The scope includes all grades, purities, and forms of Tris and Tris HC1, which vary based on the raw materials (nitromethane and formaldehyde) used in the production process and the end use application required. Tris and Tris HC1 are packaged and sold in different forms and sizes, however, all Tris and Tris HC1 are covered regardless of form or packaging.
The Tris and Tris HC1 covered by these investigations are chemical compounds with the Chemical Abstract Service (“CAS”) numbers 77-86-1 and 1185-53-1, respectively. The country of origin of the subject merchandise in these investigations is based on the country where the Tris molecule is manufactured. As a result, Tris HC1 manufactured in a third country using Tris produced in China is subject to the investigations. In addition, reprocessing Tris or Tris HC1 in a third country by, for example, recrystallizing, retesting, or repackaging the merchandise does not remove the product from the scope of these investigations.
Tris and Tris HC1 covered by the scope of these investigations are currently classified under Harmonized Tariff Schedule of the United States (“HTSUS”) subheading 2922.19.9690. Although the HTSUS subheading is provided for convenience and customs purposes, the written description of the scope is dispositive.
PETITIONERS
| Advancion Corporation
1500 E. Lake Cook Road
Buffalo Grove, IL 60089
Phone: (847) 215-8600
Fax: N/A
Contact: Scott C. Johnson, Senior Vice President, Global Corporate and Marketing Communications
Email: scjohnson@advancionsciences.com
Website: https://www.advancionsciences.com | |
COUNSEL FOR PETITIONERS
| KELLEY DRYE & WARREN LLP
670 Maine Avenue, SW, Suite 600
Washington, DC 20024
(202) 342-8400 | |
NAMED PRODUCERS/EXPORTERS
For a list of foreign producers/exporters alleged by Petitioners, please see Attachment I.
NAMED IMPORTERS
For a list of importers alleged by the Petitioner, please see Attachment II.
ESTIMATED SCHEDULE
| Event | Earliest Date |
| Petition Filed | April 21, 2026 |
| DOC Initiation | May 11, 2026 |
| ITC Preliminary Investigation: | |
| Questionnaires Due | May 5, 2026 |
| Request to appear at hearing | May 10, 2026 |
| Hearing | May 12, 2026 |
| Briefs | May 15, 2026 |
| ITC Vote | June 5, 2026 |
| DOC Investigation Schedule: | |
| DOC Preliminary Antidumping Determination | September 28, 2026 |
| DOC Final Antidumping Determination | December 12, 2026 |
| DOC Preliminary Countervailing Determination | July 15, 2026 |
| DOC Final Countervailing Determination | September 28, 2026 |
| ITC Final Investigation: | |
| ITC Final AD Determination | January 26, 2027 |
| ITC Final CVD Determination | November 12, 2026 |
ALLEGED DUMPING MARGINS
China: 43.89%% – 965.62%
ALLEGED COUNTERVAILING DUTY MARGINS
Above de minimis
ALLEGED SUBSIDIES
For a list of alleged subsidies by the Petitioner, please see Attachment III.
IMPORTS OF SUBJECT MERCHANDISE
| | 2023 | 2024 | 2025 |
| China |
| Volume (Kilograms) | 945,508 | 838,062 | 1,532,002 |
| Import Value (USD) | 3,647,712 | 3,103,069 | 5,146,383 |
| AUV (USD/kg) | $3.86 | $3.70 | $3.36 |
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DISCLAIMER: Because of the generality of this update, the information provided herein may not be applicable in all situations and should not be acted upon without specific legal advice based on particular situations.
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