Isotope drama: Court rules on Chinese fertilizer duties.
Published Date: 9/1/2026
Notice
Summary
On August 12, 2026, the U.S. Court of International Trade (CIT or the Court) issued its final judgment in Cambridge Isotope Laboratories, Inc. v. United States, Court No. 23-00080 sustaining the U.S. Department of Commerce (Commerce)'s remand redetermination pertaining to the scope ruling for the antidumping and countervailing duty orders on Ammonium Sulfate from People's Republic of China finding enriched \15\N ammonium sulfate isotope to be included in the orders. Commerce is notifying the public that the CIT's final judgment is not in harmony with Commerce's scope ruling, and that Commerce is amending the scope ruling to find that enriched \15\N ammonium sulfate isotope is outside the scope of the orders.
Analyzed Economic Effects
2 provisions identified: 2 benefits, 0 costs, 0 mixed.
15N Ammonium Sulfate Excluded
On August 12, 2026, the U.S. Court of International Trade's judgment led Commerce to amend its March 16, 2023 Final Scope Ruling and find that enriched 15N ammonium sulfate isotope is outside the antidumping and countervailing duty orders on ammonium sulfate from China. This amended scope is applicable August 22, 2026.
Zero Cash Deposit and Liquidation
Commerce will instruct U.S. Customs and Border Protection that the cash deposit rate for enriched 15N ammonium sulfate isotope is zero percent pending any appeals. If the CIT's final judgment is not appealed or is upheld on appeal, Commerce will direct CBP to liquidate entries of the enriched 15N ammonium sulfate isotope without regard to antidumping and/or countervailing duties and to lift the suspension of liquidation.
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Previous / Next Documents
Previous: 2026-17768, Certain Cold-Rolled Steel Flat Products From the Republic of Korea: Final Results of Countervailing Duty Administrative Review; 2023
The U.S. Department of Commerce (Commerce) determines Hyundai Steel Company (Hyundai Steel) and POSCO, producers/exporters of certain cold-rolled steel flat products (cold-rolled steel) from the Republic of Korea (Korea), received countervailable subsidies during the period of review (POR) January 1, 2023, through December 31, 2023.
Next: 2026-17770, Pure Magnesium From the People's Republic of China: Notice of Court Decision Not in Harmony With the Final Results Antidumping Review; Notice of Amended Final Results
On August 14, 2026, the U.S. Court of International Trade (the Court or CIT) issued its final judgment in Tianjin Magnesium International Co., Ltd., et al., v. United States, Court no. 25-00002, sustaining the U.S. Department of Commerce (Commerce)'s amended final remand redetermination concerning the electricity surrogate value selection covering the period May 1, 2022, through April 30, 2023, of the antidumping duty (AD) order on pure magnesium from China. Commerce is notifying the public that the CIT's final judgment is not in harmony with Commerce's final results in this AD review and is amending its final results with respect to the dumping margin assigned to Tianjin Magnesium International Co., Ltd.; Tianjin Magnesium Metal Co., Ltd. (collectively, MMC), the sole respondent individually examined in the underlying review.