US Updates Antidumping Duties on Steel Pipes From Thailand
The U.S. Department of Commerce released preliminary antidumping findings on circular welded carbon steel pipes and tubes from Thailand for the March 2024–February 2025 review period. Commerce preliminarily determined that certain Thai producers sold subject merchandise below normal value, triggering antidumping duties. The agency also rescinded the review in part for 28 companies. Shippers importing these products should monitor final results and duty rate changes before shipment.
Photo: Jimmy Liao / Pexels# US Updates Antidumping Duties on Steel Pipes From Thailand
The U.S. Department of Commerce released preliminary antidumping findings on circular welded carbon steel pipes and tubes originating from Thailand on April 27, 2026. The preliminary results cover the period of review (POR) from March 1, 2024, through February 28, 2025.
"The U.S. Department of Commerce (Commerce) preliminarily finds that certain companies subject to this administrative review made sales of subject merchandise at less than normal value (NV) during the period of review (POR) March 1, 2024, through February 28, 2025."
Who Is Affected
This antidumping administrative review applies to exporters and manufacturers of circular welded carbon steel pipes and tubes shipped from Thailand to the United States. The preliminary determination indicates that certain Thai companies underpriced their products relative to normal value, potentially injuring U.S. domestic producers.
Commerce rescinded the review in part with respect to 28 companies, meaning those firms will not face new duty assessments in this cycle. However, other Thai manufacturers covered by the review remain subject to antidumping duty calculations.
Next Steps and Comment Period
Commerce invited interested parties—including importers, domestic producers, and other stakeholders—to submit comments on the preliminary results. These comments will inform Commerce's final determination, expected later in the administrative review process.
Shippers and importers should note that the preliminary findings do not yet establish final duty rates. The antidumping duty margins will be finalized after the comment period closes and Commerce issues its final results. Until then, merchandise may remain subject to existing antidumping duties assessed in prior reviews.
What this means for shippers
Circular welded carbon steel pipes and tubes (typically classified under HS Chapter 73) remain a closely monitored import category under U.S. antidumping law. Importers should track Commerce's final announcement to confirm whether duty rates change and which Thai manufacturers benefit from the partial rescission. Accurate customs valuation and proper HS classification remain critical to avoiding penalties and managing landed cost. For detailed guidance on how antidumping duties affect your landed cost calculations, visit /landed-cost.
