Heavy-Walled Rectangular Welded Carbon Steel Pipes and Tubes From Mexico: Initiation and Expedited Preliminary Results of Changed Circumstances Review

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Department of Commerce International Trade Administration [A-201-847] AGENCY: Enforcement and Compliance, International Trade Administration, Department of Commerce. SUMMARY: The U.S. Department of Commerce (Commerce) is simultaneously initiating and issuing the preliminary results of a changed circumstances review (CCR) of the antidumping duty (AD) order on heavy-walled rectangular welded carbon steel pipes and tubes (HWR) from Mexico, consistent with section 751(b) of the Tariff Act of 1930, as amended (the Act), and 19 CFR 351.216 and 351.221(c)(3)(ii) . Based on the information on the record, we preliminarily determine that Perfiles LM, S.A. de C.V. (PLM) is the successor-in-interest to Perfiles y Herrajes LM, S.A. de C.V. (PyH). Interested parties are invited to comment on these preliminary results. DATES: Applicable October 26, 2026. FOR FURTHER INFORMATION CONTACT: Paola Aleman Ordaz, AD/CVD Operations, Office II, Enforcement and Compliance, International Trade Administration, U.S. Department of Commerce, 1401 Constitution Avenue NW, Washington, DC 20230; telephone: 202-482-4031. SUPPLEMENTARY INFORMATION: Background On September 13, 2016, Commerce published in the Federal Register the AD order on HWR from Mexico. [ 1 ] On August 19, 2026, PLM informed Commerce that, effective July 11, 2017, it had changed its name from “Perfiles y Herrajes LM, S.A. de C.V.” ( i.e., PyH) to “Perfiles LM, S.A. de C.V.” ( i.e., PLM) and requested that Commerce con…