Light-Walled Rectangular Pipe and Tube From Mexico: Notice of Court Decision Not in Harmony With the Results of Antidumping Duty Administrative Review; Notice of Amended Final Results

On September 14, 2026, the U.S. Court of International Trade (CIT) issued a final judgment in Maquilacero S.A. de C.V. and Tecnicas de Fluidos S.A. de C.V. and Perfiles LM, S.A. de C.V. v. United States, Consol. Court no. 23-00091, sustaining the U.S. Department of Commerce (Commerce)'s second remand results pertaining to the administrative review of the antidumping duty (AD) order on light-walled rectangular pipe and tube (LWRPT) from Mexico covering the period August 1, 2020 through July 31, 2021. Commerce is notifying the public that the CIT's final judgment is not in harmony with Commerce's final results of the administrative review, and that Commerce is amending the final results with respect to the dumping margin assigned to Maquilacero S.A. de C.V. (Maquilacero) and Tecnicas de Fluidos S.A. de C.V. (TEFLU), which were reviewed as a single, individually-examined, collapsed entity, (collectively, Maquilacero/TEFLU). As a result, Commerce is also amending the final results with respect to the dumping margin assigned to the non-selected companies Perfiles L.M., S.A. de C.V. (Perfiles) and Productos Laminados de Monterrey S.A. de C.V. (Productos Laminados).