3501.90.60.00/Phosphorylated Casein Derivative/Japan

Phosphorylated Casein Derivative from Japan

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 — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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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