L-Methionine USP Grade
L-Methionine USP Grade is the natural levorotatory form of methionine, meeting pharmacopeial standards for purity and use in medical and nutritional supplements. It is classified under tariff item 2930.40.00 as a separate chemically defined organo-sulphur compound.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the L-Methionine is packaged in measured doses for retail sale as a medicament
Section note 2 directs goods put up in measured doses for retail sale to heading 30.04.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Maintain documentation proving USP grade compliance, including certificates of analysis
• Be aware that if the product is put up in measured doses for retail sale, it may fall under heading 30.04 instead
Related Products under Tariff item 2930.40.00
DL-Methionine
DL-Methionine is a synthetic racemic mixture of D- and L-methionine, a chemically defined organo-sulphur amino acid essential for animal nutrition. It falls under tariff item 2930.40.00 as methionine, used primarily as a feed additive.
Dry Methionine Powder 98.5%
Dry DL-Methionine powder at 98.5% purity with minor impurities qualifies as a chemically defined compound under chapter note (a). Used in pet food formulations, it is classified under tariff item 2930.40.00 as methionine.
L-Methionine with Stabilizer
L-Methionine powder with added anticaking stabilizer for preservation during transport is permitted by chapter note (f). This chemically defined organo-sulphur compound remains classified under tariff item 2930.40.00 as methionine.
Methionine Calcium Salt
Calcium salt of DL-methionine is an organo-sulphur compound where the salt form follows the parent methionine per chapter note 5(C)(1). It is classified under tariff item 2930.40.00 as methionine.
Methionine Feed Grade 99%
Methionine Feed Grade 99% is a high-purity powder formulation of DL-methionine designed for livestock nutrition, containing minimal impurities as per chapter note (a). It is classified under tariff item 2930.40.00 as methionine.