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 ma obecnie dwie fabryki, jedna to fabryka czystych naturalnych ekstraktów roślinnych, druga to fabryka produktów pszczelich, a także posiadamy szereg certyfikatów, takich jak ISO9001, ISO22000, HACCP, ORGANICZNE, FDA, HALAL, KOSHER.