Fermentation-Derived Cobamamide from Mexico
Biosynthetic adenosylcobalamin (cobamamide) produced via microbial fermentation, identical to natural Vitamin B12 coenzyme. HTS 2936.26.00.00 covers both synthetic and natural-reproduced B12 compounds with vitamin activity, unmixed. Used in premium vegan supplements.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals Annex IV: 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
• Fermentation residual analysis required (no antibiotic traces); GMO declaration if Propionibacterium sourced; vegan certification documentation