# 2026-19273: Mexican Copper Pipes Dumped, Others Dropped from Review 2026-19273, Seamless Refined Copper Pipe and Tube From Mexico: Preliminary Results and Rescission, in Part, of Antidumping Duty Administrative Review; 2024-2025, is a Federal Register notice from Commerce Department, International Trade Administration published 2026-09-21, effective 2026-09-21; PRIA reads it as touching household money (as of 2026-09-28). - Canonical: https://policyrisk.com/federal-register/2026-19273 - As of: 2026-09-28 - Plain-text twin of the page above; the HTML and this file carry the same facts. ## Facts - Document number: 2026-19273 - Title: Seamless Refined Copper Pipe and Tube From Mexico: Preliminary Results and Rescission, in Part, of Antidumping Duty Administrative Review; 2024-2025 - Type: Notice - Agencies: Commerce Department; International Trade Administration - Citation: 91 FR 59763 - Published: 2026-09-21 - Effective: 2026-09-21 - Comments close: not stated - Significant: no - Touches household money: yes - Regulation identifier numbers: none - Last updated: 2026-09-28 ## In one line Mexican Copper Pipes Dumped, Others Dropped from Review ## Summary The U.S. Department of Commerce found that Nacional de Cobre sold copper pipes from Mexico at unfairly low prices between November 2024 and October 2025. They stopped reviewing two other companies, Golden Dragon and IUSA, after requests were withdrawn. This means some import duties might change soon, affecting businesses and prices in the copper pipe market. ## Abstract The U.S. Department of Commerce (Commerce) preliminarily finds that Nacional de Cobre, S.A. de C.V. (Cobre) made sales of seamless refined copper pipe and tube (copper pipe and tube) from Mexico below normal value (NV) during the period of review (POR), November 1, 2024, through October 31, 2025. In addition, we are rescinding the review with respect to GD Affiliates S. De R. L. de C.V. (Golden Dragon) and IUSA, S.A. de C.V. (IUSA). Interested parties are invited to comment on these preliminary results of review. ## Effects PRIA read - 56.43% Dumping Margin for Cobre: cost, high. The Department of Commerce preliminarily found that Nacional de Cobre (Cobre) sold seamless refined copper pipe and tube below fair value and assigned an estimated weighted-average dumping margin of 56.43% for the period November 1, 2024 through October 31, 2025. If finalized, importers of Cobre's… - Review Rescinded for Golden Dragon and IUSA: cost, low. Commerce rescinded the administrative review for GD Affiliates (Golden Dragon) and IUSA because the domestic parties withdrew their review requests within the 90-day window after the January 27, 2026 initiation. Commerce will instruct U.S. Customs and Border Protection (CBP) to assess antidumping d… - Cash Deposit Rates Set for Copper Pipe Entries: cost, high. Commerce stated that, after publication of the final results of this review, cash deposit requirements will apply for shipments entered or withdrawn for consumption on or after that publication date: Cobre's cash deposit rate will equal the weighted-average dumping margin established in the final r… - Importer Reimbursement Certificate Required or Face Double Duties: cost, medium. Importers must file a certificate regarding reimbursement of antidumping duties prior to liquidation of the relevant entries during this review period under 19 CFR 351.402(f). If importers fail to file the certificate before liquidation, Commerce may presume reimbursement occurred and assess double… - Commerce Applied Adverse Facts Available (AFA) to Cobre: cost, high. Commerce preliminarily determined that Cobre failed to provide necessary information and did not act to the best of its ability, so Commerce applied facts otherwise available with an adverse inference (AFA) under section 776 of the Tariff Act for the November 1, 2024 through October 31, 2025 review… ## Related documents - [2025-05481](https://policyrisk.com/federal-register/2025-05481): Regulations Enhancing the Administration of the Antidumping and Countervailing Duty Trade Remedy Laws; Correction, 2025-03-31 - [2026-20777](https://policyrisk.com/federal-register/2026-20777): Certain Paper Shopping Bags From Cambodia: Preliminary Results of Antidumping Duty Administrative Review; 2024-2025, 2026-10-09 - [2026-20779](https://policyrisk.com/federal-register/2026-20779): Passenger Vehicle and Light Truck Tires From Thailand: Preliminary Results and Rescission, in Part, of Antidumping Duty Administrative Revi…, 2026-10-09 - [2026-20778](https://policyrisk.com/federal-register/2026-20778): Certain Hot-Rolled Steel Flat Products From the Republic of Korea: Final Results of Countervailing Duty Administrative Review; 2023, 2026-10-09 - [2026-20690](https://policyrisk.com/federal-register/2026-20690): Oleoresin Paprika From India: Antidumping Duty Order and Countervailing Duty Order, 2026-10-08 - [2026-20691](https://policyrisk.com/federal-register/2026-20691): Certain Paper Shopping Bags From Taiwan: Preliminary Results and Rescission, in Part, of Antidumping Duty Administrative Review; 2024-2025, 2026-10-08 ## Sources - [2026-19273 on federalregister.gov](https://www.federalregister.gov/documents/2026/09/21/2026-19273/seamless-refined-copper-pipe-and-tube-from-mexico-preliminary-results-and-rescission-in-part-of) - [2026-19273 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-09-21/pdf/2026-19273.pdf) ## Related - [Previous: 2026-19272, Heavy Walled Rectangular Welded Carbon Steel Pipes and Tubes From the Republic…](https://policyrisk.com/federal-register/2026-19272) - [Next: 2026-19274, Tin Mill Products From the People's Republic of China: Preliminary Affirmative…](https://policyrisk.com/federal-register/2026-19274) - [All Federal Register documents](https://policyrisk.com/federal-register) Source: PRIA, https://policyrisk.com/federal-register/2026-19273 (as of 2026-09-28).