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 hat op it stuit twa fabriken, de iene is in suver natuerlik fabrykekstraktfabryk, de oare is in bijeproduktfabryk, en wy hawwe in searje sertifikaten lykas ISO9001, ISO22000, HACCP, ORGANICAL, FDA, HALAL, KOSHER.