Assam Tea Dust for Pharmaceutical Caffeine from Mexico
Assam black tea dust byproduct imported exclusively for pharmaceutical-grade caffeine production through supercritical CO2 extraction. This HTS 9814.00.50.00 classification applies because the tea material is completely chemically transformed, losing all original character during purification to USP-grade caffeine.
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
• Include detailed chemical process flow chart showing complete destruction of tea matrix
• Avoid common error of insufficient bonding - amount must cover full MFN duties if diverted
• HHS inspection may verify manufacturing facilities before release from customs custody