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Ankang Zhengda Pharmaceutical Co., Ltd. is a real industrial manufacturing enterprise of the pharmaceutical industry under Tianyi Group. It has been 66 years since its establishment. The company is located in the south of the foot of the Qinling Mountains and the intersection of the Qinba Mountains. Here, the climate is humid, the sunshine is balanced, and the unique geographical environment is suitable for the growth of a variety of rare medicinal materials. It is known as the "hometown of medicine", of which Gynostemma pentaphyllum is a national geographical indication product.