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 |
CONTACT US
For more information concerning this petition and how it may affect your business, please contact Nithya Nagarajan or Stephen Brophy.