L-Serine from Japan
L-Serine is a polar amino acid in cell culture media and moisturizers. Classified HTS 2922.49.80.00 for hydroxy amino-acids with single function.
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%
Import Tips
• Endotoxin testing for biotech; sterile certifications; media compatibility docs