HS Code for Lysine

Lysine is classified under HS code 2922.41, which covers amino-acids containing only one kind of oxygen function and their esters and salts. As an essential amino acid, lysine is a chemically defined organic compound. Chapter 29 of the Harmonized System is designed for such compounds, and heading 2922 specifically addresses oxygen-function amino-compounds. The subheading 2922.41 is a 'named' code, meaning the HS specifically identifies Lysine and its esters as the primary products for this classification. This applies to L-lysine, which is the biologically active form, as well as its commercially common salts like lysine hydrochloride. The classification remains in Chapter 29 as long as the product is a separate chemically defined compound, even if it is intended for use as an additive in animal feed.

Products Included

• L-lysine (pure chemical)
• Lysine hydrochloride
• Lysine acetate
• Esters of lysine
• Lysine salts for pharmaceutical or nutritional use

Common Misclassification

A frequent misclassification occurs with HS code 2309.90, which covers preparations of a kind used in animal feeding. If lysine is sold as a pure chemical or a simple salt, it must stay in 2922.41. However, if the lysine is mixed with other nutrients, carriers, or additives to create a 'pre-mix' for livestock, it shifts to 2309.90. Another confusion arises with other amino acids; for example, Glutamic acid is 2922.42 and Methionine is 2930.40. Importers must ensure that the chemical identity is verified via a Certificate of Analysis (COA) to distinguish between these closely related amino acids.

FAQ

What is the HS code for Lysine?

The HS code for pure lysine, its esters, and its salts is 2922.41.

Is feed-grade lysine classified differently?

If the feed-grade lysine is a pure chemically defined compound (like lysine HCl), it is 2922.41. If it is a prepared mixture with other substances, it is 2309.90.