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U.S. Commerce Department Imposes 1.6–5% Countervailing Duties on Canadian Fresh Mushrooms After Finding Subsidies

The duties follow a January investigation launched after U.S. growers petitioned over Canadian tax exemptions. Canadian Mushroom Growers' Association executive vice-president Ryan Koeslag called the justification unprecedented and warned of broader risks to agriculture on both sides of the border. The move comes as Canada, the U.S. and Mexico review their trilateral trade pact.

Cbc
1 source·May 14, 9:06 PM(14 days ago)·1m read
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U.S. 6 and 5 per cent on fresh mushrooms grown in Canada. U.S. Commerce Department fact sheet released this week detailed the duties following an investigation.

U.S. growers petitioned, arguing that several tax exemptions in Canada mean Canadian mushrooms are unfairly subsidized. Countervailing duties are imposed on imports judged to be unfairly subsidized.

Ryan Koeslag, executive vice-president of the Canadian Mushroom Growers' Association, said using a tax exemption as justification for countervailing duties is unprecedented. "It's a very normal practice. Countries all around the world have agricultural tax exemptions, and the United States is included in that," Koeslag told CBC News.

Koeslag said that using general tax exemptions as a justification for countervailing duties could open up Canadian and American farm products to more tariffs. "This not only has a broader implication to Canadian agriculture, but also to the American agriculture producer," he said. U.S.

Jumped 13 per cent from 2023 to 2024 before declining by nearly four per cent last year, according to data from Industry Canada. U.S. investigations have resulted in duties on Canadian softwood lumber for decades.

U.S. and Mexico are reviewing the trilateral trade pact that came into force in 2020. U.S. also launched a separate investigation which could result in further anti-dumping tariffs on mushrooms later this year.

Cbc News asked Agriculture Minister Heath MacDonald's office for a statement regarding the mushroom duties. U.S. Trade Minister Dominic LeBlanc's office for comment, but LeBlanc's office hasn't yet responded.

Key Facts

U.S. to impose duties between 1.6 and 5 per cent
The U.S. Commerce Department will impose countervailing duties of between 1.6 and 5 per cent on fresh mushrooms grown in Canada following a January investigatio
Ryan Koeslag calls justification unprecedented
Ryan Koeslag, executive vice-president of the Canadian Mushroom Growers' Association, said using a tax exemption as justification for countervailing duties is u
Mushroom export volumes fluctuated
Fresh mushroom exports to the U.S. jumped 13 per cent from 2023 to 2024 then declined by nearly four per cent last year

Story Timeline

5 events
  1. 2026-05-2026

    U.S. Commerce Department fact sheet released detailing countervailing duties of 1.6 to 5 per cent on Canadian fresh mushrooms

    1 sourceCbc
  2. 2025

    Fresh mushroom exports to the U.S. declined by nearly four per cent

    1 sourceCbc
  3. 2024

    Fresh mushroom exports to the U.S. jumped 13 per cent from 2023

    1 sourceCbc
  4. January 2026

    U.S. Commerce Department launched investigation into Canadian fresh mushrooms after petition from U.S. growers

    1 sourceCbc
  5. 2020

    Canada-U.S.-Mexico trilateral trade pact came into force

    1 sourceCbc

Potential Impact

  1. 01

    Added costs for Canadian mushroom growers exporting to the U.S. market

  2. 02

    Complicates ongoing review of the 2020 trilateral trade pact

  3. 03

    Potential for increased tariffs on a wider range of Canadian and American farm products

Transparency Panel

Sources cross-referenced1
Confidence score65%
Synthesized bySubstrate AI
Word count242 words
PublishedMay 14, 2026, 9:06 PM
Bias signals removed2 across 1 outlet
Signal Breakdown
Loaded 2

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