U.S. international Trade Commission launches investigations into Fresh Mushroom Imports from Canada
WASHINGTON – The U.S. International Trade Commission (USITC) today announced the institution of antidumping and countervailing duty investigations concerning imports of fresh and chilled mushrooms from Canada. The investigations, initiated at the request of American Mushroom producers Association, will determine whether these imports are being sold in the U.S. at less than fair value and are benefiting from unfair subsidies, potentially harming domestic producers.
These investigations arrive amid growing concerns from U.S. mushroom growers regarding increased import volumes and depressed pricing. The outcome could lead to the imposition of duties on Canadian mushroom imports, offering relief to the domestic industry which contributes significantly to the U.S. agricultural economy. The USITC’s preliminary phase investigations are scheduled to be completed by February 13, 2026.
The USITC will investigate whether Canadian exporters are dumping fresh and chilled mushrooms – defined as those classified under Harmonized Tariff Schedule of the United States (HTSUS) statistical reporting number 0709.90.00 – in the U.S. market.together, the Commission will assess whether Canadian producers receive countervailable subsidies from the Canadian government.
Interested parties, including importers, exporters, and domestic producers, are encouraged to participate in the investigations. All submissions to the Commission must include a certificate of service, and the Secretary will not accept filings lacking this documentation. Moreover, submitters are required to certify the accuracy and completeness of their data, acknowledging potential disclosure to Commission personnel, offices, and contractors for investigation purposes, as well as to U.S. government employees for cybersecurity needs. Contract personnel will be bound by nondisclosure agreements.
The investigations are being conducted under the authority of title VII of the Tariff Act of 1930, and are governed by § 207.12 of the Commission’s rules. The USITC issued the notice on September 17, 2025, through the order of Sharon Bellamy, Supervisory Hearings and Information Officer.
