Phosphorylated Casein Derivative from Mexico
Phosphorylated casein derivative chemically adds phosphate groups to casein for mineral absorption enhancement in supplements. It falls within HTS 3501.90.60.00 as other casein derivatives for nutritional fortification. This modification targets bioavailability improvements.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Quantify phosphate-to-protein ratio via phosphorus assays for classification
• Align with DSHEA claims limits to avoid FDA med classification
• Batch-test heavy metals due to phosphorylation reagent residues