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US keeps antidumping duties on Chinese lawn mower engines

US keeps antidumping duties on Chinese lawn mower engines

Rule Changes

A 2021 order that added triple-digit duties to Chinese vertical shaft engines survives its first five-year review

June 12th, 2026: Commission schedules its review

Overview

The engine that spins the blade under most American riding mowers is a vertical shaft engine. Since 2021, Chinese-made versions have carried US duties that in some cases more than quadrupled their price. On May 28, 2026, the Commerce Department decided those duties stay.

The decision came from a sunset review, the check the government runs every five years to ask whether an old trade penalty is still needed. Commerce found that dropping the order would likely bring back the underpricing it was meant to stop. So the duties on larger engines, first set in 2021, roll forward for another five years.

Why it matters

If the duties held prices up, Chinese engines stay expensive and US makers like Briggs & Stratton and Kohler keep the domestic market they won in 2021.

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Key Indicators

457%
Top dumping margin
The rate applied to the China-wide entity for large engines in the 2021 final determination.
225-999cc
Engine size covered
The large vertical shaft engines whose order was just renewed.
5 years
Order extended
The duties now run until the next scheduled sunset review.
2021
Original order year
The antidumping and countervailing orders took effect in early 2021.

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People Involved

US petitioners
US petitioners
Order renewed in their favor

Organizations Involved

U.S. Department of Commerce
U.S. Department of Commerce
Federal Agency
Issued the May 2026 sunset ruling

The agency that sets US antidumping and countervailing duties and reviews them every five years.
US International Trade Commission
US International Trade Commission
Federal Agency
Running its own expedited five-year review

The independent panel that decides whether dumped imports actually injure a US industry.

Timeline

January 2020 June 2026

9 events Latest: June 12th, 2026 · 4 weeks ago
Tap a bar to jump to that date

  1. Commission schedules its review

    Latest Procedural

    The Trade Commission sets an expedited five-year review to decide whether lifting the order would injure US industry.

  2. Large-engine duties renewed

    Ruling

    Commerce rules that revoking the large-engine order would likely restart dumping, extending the duties for another five years.

  3. Commerce flags evasion

    Ruling

    Commerce preliminarily finds two Zongshen engine models are later-developed products that circumvent the small-engine order.

  4. Five-year review begins

    Investigation

    Commerce and the Trade Commission open the first sunset review of the large-engine order to decide if it should continue.

  5. Circumvention inquiry opens

    Investigation

    At Briggs & Stratton's request, Commerce starts checking whether redesigned Chinese engines are dodging the small-engine order.

  6. Trade Commission finds injury

    Ruling

    The International Trade Commission rules that dumped small Chinese engines hurt US producers, clearing that order to take effect.

  7. Commerce confirms dumping

    Ruling

    Commerce sets final dumping margins on large engines ranging from about 165% to 457%, plus subsidy rates near 18%.

  8. A second petition targets small engines

    Legal

    Briggs & Stratton files a separate case covering smaller engines between 99cc and 225cc from China.

  9. US makers file the first petition

    Legal

    The Coalition of American Vertical Engine Producers, with Kohler and Briggs & Stratton, petitions Commerce over large Chinese engines between 225cc and 999cc.

Historical Context

2 moments from history that rhyme with this story — and how they unfolded.

September 2009

Chinese tire duties (2009)

President Obama imposed steep tariffs on Chinese passenger and light-truck tires after the Trade Commission found a surge of imports hurt US tire makers. Rates started at 35% and stepped down over three years. China challenged the move at the World Trade Organization and lost.

Then

Chinese tire imports fell sharply and some US production held on.

Now

The case became a template for later China-specific trade actions and showed such duties can survive WTO challenge.

Why this matters now

It shows the pattern the engine order follows: a domestic industry petitions, wins high duties, and the government defends them over years.

February 2005

Shrimp antidumping orders (2005)

US Gulf Coast shrimpers won antidumping duties on shrimp from China, Vietnam, India and others after arguing cheap imports were sinking prices. The orders on some countries have survived multiple five-year sunset reviews and still stand two decades later.

Then

Duties raised the landed cost of imported shrimp and gave domestic harvesters breathing room.

Now

The orders show how a trade penalty can renew again and again, outliving the crisis that created it.

Why this matters now

The engine order just cleared its first sunset review. The shrimp case is what a repeatedly renewed order looks like over the long run.

Sources

(7)
+3
Federal Register U.S. Department of Commerce U.S. International Trade Commission Hughes Hubbard & Reed Federal Register Federal Register Federal Register