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.

       Ankang Zhengda relies on the rich local medicinal materials resources, and after years of new product research and development, the company has 98 drug approval numbers with the trademarks of "Strong" and "Fitness", forming four major systems of cardiovascular and cerebrovascular medicine, breast disease medicine, traditional Chinese and Western medicine and bulk drugs. The products involve tablets, capsules, pills, granules, mixtures, APIs and other dosage forms, among which tablets, capsules, mixtures and APIs have passed the national GMP certification of 2010. "Gynostemma pentaphyllum glycosides tablets", a national second-class new drug for lowering blood lipids, and "Rukang tablets", which are used to treat breast hyperplasia, are famous brand products in Shaanxi Province, and they are sold well across the country because of their definite efficacy. Other conventional products of the company include Rukuaixiao capsules/tablets, Ru'an tablets, Yiqi Fumai capsules/oral liquid, metformin hydrochloride tablets, azithromycin dispersible tablets, Yufeng Ningxin tablets, etc; Gynostemma pentaphyllum glycosides (API) is the main manufacturer in China. 66 varieties have entered the national basic medical insurance drug directory, 29 varieties have been listed in the national basic drug directory, and 30 varieties are OTC drugs.

       The company now has a marketing network in more than 20 provinces and cities across the country; It has been successively rated as "Advanced Enterprise of Quality and Benefit in Shaanxi Province", "Demonstration Enterprise of Science and Technology in Shaanxi Province", and has been rated as "Major Profits and Taxes Owner in Ankang City" for many times, belonging to the leading pharmaceutical enterprise in Ankang City.