Note: 1. Polyphenols--- Tested by Folin Ciocalteu UV-VIS 2. Catechins and Caffeine --- Tested by HPLC 3. Theaflavins ---- Tested by HPLC 4. Theanine ---- Tested by HPLC 5. Packing: 1kg/bag 10kg/bag 25kg/drum or 20kg/drum