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. تمتلك TRB حاليًا مصنعين ، أحدهما مصنع مستخلصات نباتية طبيعية خالصة ، والآخر مصنع لمنتجات النحل ، ولدينا سلسلة من الشهادات مثل ISO9001 ، ISO22000 ، HACCP ، ORGANICAL ، FDA ، HALAL ، KOSHER.