Duties above 260% on Chinese van-type trailers will take effect after the US International Trade Commission found injury to domestic producers, in a case brought by the three largest US trailer builders.

The American Trailer Manufacturers Coalition — whose members Great Dane, Stoughton Trailers and Wabash filed antidumping and countervailing duty petitions against China, Canada and Mexico in November 2025 — welcomed the ruling. The coalition says the sector supports almost 10,000 direct US jobs.

Commerce will issue its China orders in October 2026, according to the coalition. Those orders will also cover Chinese subassemblies and kits shipped through Canada, closing a transshipment route that petitioners have long flagged.

The China case now moves fastest. Mexico and Canada lag well behind. Commerce has yet to finalize its AD and CVD findings for Mexico, and it has not finalized the AD finding for Canada. A second USITC vote must follow before any duties on those two countries take effect. Final rulings on Mexico and Canada are expected early in 2027.

That timing matters for procurement. Buyers sourcing van-type trailers or trailer kits from Chinese suppliers through North American intermediaries face roughly 18 months before the full duty structure locks in — and any imports entering after the Commerce orders issue will carry the new rates.

"Today's determination by the ITC confirms the yearslong loss of U.S. market share to unfairly traded imports by market-manipulating foreign actors in China, Canada, and Mexico," said Robert E. DeFrancesco III, counsel to the coalition, in a statement. "American trailer manufacturers have proven capable of winning work and creating good-paying American jobs when they can compete on a level playing field. Through today's affirmative injury vote, the ITC has taken an important step to rectifying this harm for American manufacturers and their workforce and paves the way for the imposition of strong AD and CVD duties."

The orders last at least five years once in place, the coalition said. Annual administrative reviews can push rates higher, which means the duty exposure on Chinese product is not fixed at the initial level.

For the domestic builders, the case is about volume recovery. Great Dane, Stoughton and Wabash argue they lost market share to imported product priced below fair value and subsidized by foreign governments. The ITC's affirmative injury vote accepts that claim for China and sets the legal basis for the 260%-plus combined duties.

The coalition's figures and framing are its own. The near-10,000 direct jobs figure comes from the petitioners, not from an independent census, and the injury finding covers legal causation rather than a quantified measurement of lost output.

What to watch: Commerce's China orders in October 2026 — the first hard enforcement date, and the point at which the 260% duties begin applying to entries including kits routed via Canada. Then the second USITC votes on Mexico and Canada, expected in early 2027, which will determine whether the case becomes a three-country regime or a China-only one.