Antidumping duties imposed on chassis from Mexico, Thailand, Vietnam
The U.S. Department of Commerce has issued final antidumping duty orders on certain chassis and subassemblies from Mexico, Thailand, and Vietnam, effective immediately. Importers of these products must now pay antidumping duties on shipments from all three countries. This follows affirmative determinations by both Commerce and the U.S. International Trade Commission.
Photo: Biplab Sau / PexelsAntidumping duty orders issued on chassis imports
On June 18, 2026, the U.S. Department of Commerce issued final antidumping duty (AD) orders on certain chassis and subassemblies thereof from Mexico, Thailand, and the Socialist Republic of Vietnam. The orders follow affirmative final determinations by both Commerce and the U.S. International Trade Commission (ITC), triggering mandatory antidumping duties on all covered imports from these three countries.
Who is affected and what changed
Importers bringing in chassis and chassis subassemblies from Mexico, Thailand, or Vietnam are now required to post bonds or deposits equal to the antidumping duty margins determined during the investigation. These duties apply to all entries of covered merchandise, regardless of the importer's size or prior compliance history.
The orders cover "certain chassis and subassemblies thereof"—a category that typically includes vehicle frames, suspension systems, axle assemblies, and other structural or functional subcomponents. The exact product scope, including any exclusions or exceptions, is defined in the Federal Register notice. Importers should verify their specific product's classification and whether it falls within the scope of these orders.
"Based on affirmative final determinations by the U.S. Department of Commerce (Commerce) and the U.S. International Trade Commission (ITC), Commerce is issuing antidumping duty (AD) orders on certain chassis and subassemblies therefor (chassis) from Mexico, Thailand, and the Socialist Republic of Vietnam (Vietnam)."
Mexico, Thailand, and Vietnam are all significant suppliers of chassis components to U.S. manufacturers and importers. Companies sourcing from these countries—whether for original equipment manufacturer (OEM) supply, aftermarket parts, or finished-vehicle imports—will face increased landed costs on affected shipments.
What this means for shippers
If you import chassis or subassemblies from Mexico, Thailand, or Vietnam, you must immediately identify which products are covered by these orders and recalculate landed costs to include antidumping duties. Verify your supplier's country of origin and product specifications against the official scope. Update pricing, supplier contracts, and duty-estimation workflows now; shipments already in transit may be subject to retroactive assessment. Use our tools to recalculate duties on affected lines and adjust your landed-cost models.
