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Assam Tea Dust for Pharmaceutical Caffeine from China

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 — China → United States

12.5%

Rate breakdown

9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China

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