Tariffs & HTS
U.S. sets final AD margins on large diameter pipe from Türkiye
Commerce issued final results of its antidumping duty review of large diameter welded pipe from Türkiye for May 1, 2024 through April 30, 2025. HDM Celik Boru Sanayi Ve Ticaret A.S. and Cimtas Boru Imalatiral Ticaret Ltd each receive a 1.89% weighted-average dumping margin, which also becomes their cash deposit rate for entries on or after September 25, 2026.
What changed
No party commented on the preliminary results published May 27, 2026, so Commerce adopted them unchanged as final. The 1.89% rate also applies to HDM Spiral Kaynakli Celik Boru A.S. (HDM Spirally Welded Steel Pipe Inc.); Cimtas was not individually examined.
Commerce intends to send assessment instructions to CBP no earlier than 35 days after publication. Review-period entries of HDM-produced pipe that HDM did not know were destined for the United States are to be liquidated at the 1.57% all-others rate if no intermediary has its own rate.
Other companies keep their most recent rates, and the all-others cash deposit rate stays at 1.57%.
What an import team should check
- Match producer and exporter names on invoices to HDM Celik, HDM Spiral Kaynakli or Cimtas before applying the 1.89% deposit rate to entries from September 25, 2026.
- Separate entries made between May 1, 2024 and April 30, 2025 and ask your broker when CBP will liquidate them, since instructions come no earlier than 35 days after publication.
- Make sure the certificate on reimbursement of antidumping duties under 19 CFR 351.402(f)(2) is filed before review-period entries liquidate, to avoid a possible double assessment.