New Trade Regulations on L-Lysine from China: Import Duties Announced

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On July 23, 2026, Commerce announced its final decision that L-lysine from China was being sold in the U.S. at less than fair value. Additionally, it was determined that Chinese producers received unfair subsidies for L-lysine production. The ITC later confirmed that these imports have harmed U.S. industries.

The orders cover animal feed grade L-lysine. This includes various forms like lysine HCL, lysine sulfate, and liquid lysine. The products may also be mixed with other substances but only the lysine component is covered by the orders.

Commerce will direct U.S. Customs and Border Protection (CBP) to assess antidumping duties on relevant L-lysine entries from China. These duties apply to products entered on or after March 6, 2026, when initial determinations were published. A cash deposit reflecting the estimated dumping margins must be made for future imports.

Different producers and exporters are assigned specific dumping margins, with some based on adverse facts available, which means higher penalty rates apply due to lack of cooperation from some organizations.

Similarly, the CVD order results from findings that Chinese producers benefit from unfair subsidies. Duties are now assessed on products entered on or after January 22, 2026. Like the AD order, unliquidated entries before the ITC’s final determinations will escape these duties.

Importers should ensure compliance with these new measures to avoid penalties. The orders are part of efforts to level the playing field for U.S. producers by countering unfair trade practices.

While these orders aim to help U.S. industries, they highlight ongoing trade tensions between the U.S. and China. Importers should stay informed about such regulations to navigate the complex international trade landscape effectively.

For more specific details like estimated weighted-average dumping margins or subsidy rates, refer to the Federal Register notice on these orders.

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