Washington's Latest Trade Fight Is About Chinese L-Lysine
Published Date: 7/23/2026
Notice
Summary
The U.S. Department of Commerce has officially decided that L-lysine from China is being sold in the U.S. at unfairly low prices. This means importers of Chinese lysine will face new duties starting July 23, 2026, to level the playing field for American producers. Companies involved in importing or selling lysine should get ready for these changes that could affect prices and supply.
Analyzed Economic Effects
4 provisions identified: 0 benefits, 3 costs, 1 mixed.
New antidumping cash deposit rates for lysine
If you import L-lysine from China, Commerce set estimated weighted-average dumping margins that will be required as cash deposits. Many named producer/exporter combinations have a dumping margin of 139.83 percent (cash deposit rate shown as 139.65 percent), while a set of other combinations have a dumping margin of 73.55 percent (cash deposit rate shown as 73.37 percent); the China-wide entity rate is 139.83 percent (cash deposit 139.65 percent). These cash deposit rates are the amounts CBP will require for entries, adjusted for export-subsidy offsets as described in the notice.
Suspension of liquidation for recent entries
U.S. Customs and Border Protection will continue to suspend liquidation and require cash deposits for all appropriate entries of subject L-lysine that were entered, or withdrawn from warehouse, for consumption on or after March 6, 2026. Those suspension-of-liquidation instructions and cash deposit requirements will remain in effect until further notice.
Scope: which lysine imports are covered
The investigation covers animal feed grade L-lysine regardless of form, including lysine monohydrochloride (lysine HCl), lysine sulfate, and liquid lysine, as well as coated/encapsulated forms and lysine combined with other products where only the lysine component is covered. The notice also lists CAS numbers and HTSUS subheadings (for example HTSUS 2922.41.0090 and others) for customs purposes.
Possible refund if ITC finds no injury
Commerce will notify the U.S. International Trade Commission (ITC), which must make its final injury determination no later than 45 days after this final determination. If the ITC finds that material injury or threat of material injury does not exist, the antidumping proceeding will be terminated, all cash deposits will be refunded or canceled, and the suspension of liquidation will be lifted.
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Key Dates
Department and Agencies
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