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According to the China Trade Remedy Information Network, on August 18, the U.S. International Trade Commission (ITC) completed the final injury determination voting regarding the anti-dumping and countervailing duty cases on L-lysine imports from China and issued an affirmative ruling.
Core summary of Final Ruling
The ITC determined that the subject L-lysine items imported from China are being dumped and subsidized, and are causing material injury to the relevant domestic sector in the United States. According to the U.S. trade remedy statutory procedures, following the ITC's affirmative final injury determination, the U.S. Department of Commerce will officially issue anti-dumping and countervailing duty orders, subsequently imposing dual duties on the subject imported items.
The subject items in this case correspond to U.S. Harmonized Tariff Schedule code 2922.41.0090. L-lysine is an crucial amino acid product broadly utilized in feed additives, food nutrition fortification, medical raw materials, and other fields.
Complete Investigation Timeline
June 18, 2025: The U.S. Department of Commerce officially initiated a combined anti-dumping and countervailing duty investigation into L-lysine produced in China, marking the official start of the trade friction proceedings.
January 16, 2026: The U.S. Department of Commerce issued the preliminary determination in the countervailing duty investigation.
March 3, 2026: The U.S. Department of Commerce issued the preliminary determination in the anti-dumping investigation.
July 21, 2026: The U.S. Department of Commerce completed the entity investigation and announced the final determinations to anti-dumping and countervailing duties.
August 18, 2026: The U.S. International Trade Commission completed the final injury determination voting and issued an affirmative ruling, concluding all determination stages.
Subsequent Market Impact
The ITC's affirmative final ruling is a necessary condition to the dual duties to take effect. With the issuance of the duty orders, Chinese L-lysine exports to the U.S. will face tariff barriers, and direct exports to the U.S. by relevant companies will be constrained.
Domestic lysine sector companies might adjust their export layouts and turn to other overseas markets to digest production capacity. The market will subsequently focus on the official efficiently time of the duty orders, the final execution tax rates, and changes in the export structure of domestic amino acid companies.
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