Nanjing Tong Rui Bio-Tech Co., Ltd. referred to as TRB, has been focusing on natural extracts more than 20 years, TRB is a technology-based company that combines R&D, production and international market sales. TRB products include the plant extracts, animal extracts, sweeteners, nootropics, fruit juice and vegetable powders, essential oils and nutrition supplements. TRB tam sim no muaj ob lub chaw tsim khoom, ib qho yog lub tsev cog khoom ntuj tsim los cog, lwm qhov yog cov khoom lag luam ntawm muv, thiab peb muaj cov ntawv pov thawj xws li ISO9001, ISO22000, HACCP, ORGANICAL, FDA, HALAL, KOSHER.