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'nin şu anda iki fabrikası var, biri saf doğal bitki özü fabrikası, diğeri arı ürünleri fabrikası ve ISO9001, ISO22000, HACCP, ORGANİK, FDA, HELAL, KOSHER gibi bir dizi sertifikamız var.