Monday, September 21, 2026

Chinese tin mill products face 130.17% preliminary antidumping deposit rate

A 130.17% adjusted antidumping cash-deposit rate now applies preliminarily to the China-wide entity for covered tin mill products, and CBP must suspend liquidation for subject merchandise entered or withdrawn for consumption on or after September 21, 2026, the publication date. Commerce based the 130.17% rate on a 136.52% estimated weighted-average dumping margin after subsidy offsets, and the suspension instructions remain in effect until further notice.

The scope turns on the written product description and Chinese supply chain, not only the listed tariff numbers. Covered tin mill flat-rolled products include specified tin-, chromium-, and chromium-oxide-coated steel; the listed seven-part copolymer-coated steel tape exclusion is outside the scope only when every requirement is met. Chinese producers and exporters without separate-rate eligibility receive the China-wide rate, while an unlisted third-country exporter receives the rate applicable to the Chinese producer or exporter that supplied it. Because Commerce preliminarily found critical circumstances, suspension also reaches qualifying unliquidated entries made on or after June 23, 2026, 90 days before publication.

The determination is preliminary, so the final antidumping determination remains to come and may resolve the investigation's final duty treatment. Commerce states that it will issue that determination no later than 75 days after the September 16, 2026 signature date; if provisional measures in the companion countervailing-duty proceeding expire first, Commerce will direct CBP to collect the unadjusted 136.52% dumping margin rather than the 130.17% adjusted rate.

Sources

• Tin Mill Products From the People's Republic of China: Preliminary Affirmative Determination of Sales at Less Than Fair Value, Preliminary Affirmative Determination of Critical Circumstances and Extension of Provisional Measures
  Federal Register · Sep 21, 2026

Mexico copper pipe: preliminary 56.43% dumping margin and comment deadlines

A preliminary 56.43% weighted-average dumping margin applies to Nacional de Cobre for the November 1, 2024, through October 31, 2025 period, while the review is rescinded for Golden Dragon and IUSA. Commerce states that these are preliminary results, so the 56.43% figure is not yet the final rate governing future cash deposits or final assessment. Interested parties must file case briefs and any hearing request within 14 days after publication, and rebuttal briefs within five days after the case-brief deadline. The notice requires electronic filing through ACCESS by 5:00 p.m. Eastern Time on the applicable deadline.

The notice reaches seamless refined copper pipe and tube from Mexico, but it says the Preliminary Decision Memorandum contains the complete scope description, so that memorandum governs whether a particular product is covered. For Cobre, Commerce will determine assessment with the final results and CBP will assess appropriate entries; for Golden Dragon and IUSA, Commerce intends to rescind the review and assess entries at the cash-deposit rate required when the goods entered or were withdrawn for consumption. After final results, Cobre's cash-deposit rate will be the final weighted-average margin, while the all-others rate remains 26.03 percent for other producers or exporters covered by that category. Importers must file the required reimbursement certificate before liquidation of relevant entries or Commerce may presume reimbursement and assess double antidumping duties.

Sources

• Seamless Refined Copper Pipe and Tube From Mexico: Preliminary Results and Rescission, in Part, of Antidumping Duty Administrative Review; 2024-2025
  Federal Register · Sep 21, 2026

Korean heavy walled rectangular steel pipes get 0.00% review margins

A 0.00 percent antidumping margin now applies to Dong-A-Steel, HiSteel, and Kukje Steel for the September 1, 2023, through August 31, 2024 review period. Commerce states that the cash-deposit rates for those companies equal their final margins for subject merchandise entered or withdrawn for consumption on or after September 21, 2026.

The result reaches certain heavy walled rectangular welded steel pipes and tubes from Korea, but the notice says the Issues and Decision Memorandum supplies the full order scope. For covered entries during the review period, CBP will liquidate appropriate examined entries without antidumping duties when the respondent or importer-specific rate is zero or de minimis. Unreviewed entries produced by an examined respondent receive the 3.24 percent all-others rate when no intermediate-company rate applies. Other covered exporters and producers retain the company-specific rate from the most recent completed segment, or 3.24 percent if no applicable prior rate exists. Commerce may issue assessment instructions no earlier than 35 days after publication; a timely summons can delay liquidation while the period to seek a statutory injunction remains open. Importers must file the reimbursement certificate before liquidation or face a presumption of reimbursement and possible double-duty assessment.

Sources

• Heavy Walled Rectangular Welded Carbon Steel Pipes and Tubes From the Republic of Korea: Final Results of the Antidumping Duty Administrative Review; 2023-2024
  Federal Register · Sep 21, 2026

For information only; not legal advice, and no attorney-client relationship is created by publishing or reading it. Every development above cites the official document it rests on, and those sources were checked through September 21, 2026.