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U.S. Antidumping & Countervailing Duties
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Final Affirmative Determinations in the Antidumping and Countervailing Duty Investigations of Certain Chassis and Subassemblies Thereof from Mexico, Thailand, and the Socialist Republic of Vietnam

Final Affirmative Determinations in the Antidumping and Countervailing Duty Investigations of Certain Chassis and Subassemblies Thereof from Mexico, Thailand, and the Socialist Republic of Vietnam and Thailand

On April 21, 2026, the U.S. Department of Commerce (Commerce) announced its final affirmative determinations in the antidumping duty (AD) investigations of certain chassis and subassemblies thereof (chassis) from Mexico, Thailand, and the Socialist Republic of Vietnam (Vietnam), and countervailing duty (CVD) investigations of chassis from Mexico and Thailand.

Final Dumping Margins

Mexico

Exporter/ProducerWeighted-Average Dumping Margin (percent)Cash Deposit Rate (Adjusted for Subsidy Offsets) (percent)
Hyundai de Mexico S.A. de C.V.32.37*0.00
BRD Trailers, S.A. de C.V.32.37*0.00
Carrocerias Gallegos S.A. de C.V.32.37*0.00
Commercializadora Nimmka, S.A. de C.V. (d/b/a Atro Remolques y Carroceria)32.37*0.00
Carrocerias Corpus Christi S.A. DE C.V.32.37*0.00
Fruehauf de Mexico, S.A. de C.V.32.37*0.00
Lodi Trailers32.37*0.00
Norstar Trailers Mexico S de R.L. de C.V. (d/b/a Iron Bull Trailers)32.37*0.00
Semiremolques El Paisano S.A. de C.V.32.37*0.00
Ventura Trailers32.37*0.00
All Others32.37*0.00

* Rate based on facts available with adverse inferences.

Thailand

Exporter/ProducerWeighted-Average Dumping Margin (percent)Cash Deposit Rate (Adjusted for Subsidy Offsets) (percent)
Dee Siam Manufacturing Co., Ltd.72.8572.85
Panus Assembly Co., Ltd.129.63*129.63*
All Others72.8572.85

* Rate based on facts available with adverse inferences.

 

Vietnam

ProducerExporterWeighted-Average Dumping Margin (percent)
Thaco Special Vehicles Manufacturing Limited Company; Thaco Industries Trailers and Heavy Steel Structures Manufacturing Limited Liability CompanyThaco Special Vehicles Manufacturing Limited Company; Thaco Industries Trailers and Heavy Steel Structures Manufacturing Limited Liability Company186.84
Vietnam-wide Entity186.84

Final Subsidy Rates 

Mexico

Exporter/ProducerSubsidy Rates (percent ad valorem)
Hyundai de Mexico S.A. de C.V.76.91*
BRD Trailers, S.A. de C.V.76.91*
Carrocerias Gallegos S.A. de C.V.76.91*
Commercializadora Nimmka, S.A. de C.V. (d/b/a Atro Remolques y Carroceria)76.91*
Carrocerias Corpus Christi S.A. DE C.V.76.91*
Fruehauf de Mexico, S.A. de C.V.76.91*
Lodi Trailers76.91*
Norstar Trailers Mexico S de R.L. de C.V. (d/b/a Iron Bull Trailers)76.91*
Semiremolques El Paisano S.A. de C.V.76.91*
Ventura Trailers76.91*
All Others76.91

*Rate based on facts available with adverse inferences.

Thailand

Exporter/ProducerSubsidy Rates (percent)
Dee Siam Manufacturing Co., Ltd.10.72
Panus Assembly Co., Ltd.9.65
All Others  10.50

*Rate based on facts available with adverse inferences.

Next Steps 

  • The International Trade Commission (ITC) is running concurrent injury determination investigations. For more information related to the International Trade Commission’s timeline, please refer to the ITC’s calendar.

Other Case Information

  • The petitioners is the U.S. Chassis Manufacturers Coalition, whose members are Cheetah Chassis Corporation (Berwick, PA) and Stoughton Trailers LLC (Stoughton, WI).
  • For general information and next steps, please refer to a list of FAQs for the final determination.
  • To date, Commerce maintains 831 AD and CVD orders that provide relief to American companies and industries impacted by unfair trade.
  • Additional case information, including the scope of the investigations, is on file electronically via Enforcement and Compliance’s Antidumping and Countervailing Duty Centralized Electronic Service System (ACCESS). Once you log in, please refer to the following case numbers:
Trading PartnerAD Case NumberCVD Case Number
MexicoA-201-865C-201-866
ThailandA-549-854C-549-855
VietnamA-522-849 

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