US Finalizes Anti-Dumping and Countervailing Duty Rulings on Chassis from Mexico, Thailand, and Vietnam

The US Department of Commerce (USDOC) issued final determinations on April 21, 2026, regarding anti-dumping (AD) and countervailing duty (CVD) investigations into certain chassis and subassemblies thereof from Mexico, Thailand, and Vietnam. The affected products fall under HS codes 8716.39.0090 and 8716.90.5060.

Mexico faces AD duties of 32.37%, with a cash deposit rate adjusted to reflect subsidy offsets of 0%, along with a CVD rate of 76.91%. For Thailand, AD duties range from 72.85% to 129.63%, with adjusted rates in the same range, plus CVD duties between 9.65% and 10.72%. Vietnam is subject to an AD duty of 186.84%.

The USDOC initiated the AD and CVD investigations on March 18, 2025.