Nattokinase Fibrinolytic Enzyme from China
Nattokinase ferment from natto bacteria, used therapeutically for blood clot prevention in cardiovascular patients. Under 3002.90.10.00 as a culture-derived ferment for human prophylactic applications.
Duty Rate — China → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals: patented pharma articles — 100% floor rate
9903.05.860%Universal product exemption (U.S. note 52(b))
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Cardiovascular claim substantiation docs for therapeutic status
• Exclude from blood fraction if not immunological per notes
• Fermentation batch consistency reports