On March 18, 2025, the USA Department of Commerce (DOC) officially initiated an antidumping (AD) investigation on semitrailers and related assemblies imported from Vietnam. Scope of Investigation The investigation covers certain types of semitrailers and related assemblies, primarily under HS codes 8716.39.0090, 8716.90.5060, and potentially 8716.90.5010. The case number assigned by DOC is A-552-849. The…