The manufacturer's address is located at No. 78, Ejiao Street, Dong'e County, Liaocheng City, Shandong Province.

Dong'e Ejiao Co., Ltd. ("Dong'e Ejiao" for short) is a manufacturer and operator of donkey-hide gelatin and series of products. It is located in Dong'e County, Liaocheng, Shandong Province. It is affiliated to the central enterprise China Resources Group. It is mainly engaged in donkey-hide gelatin and a series of Chinese patent medicines, R&D, production and sales of health food and food, with 3 well-known Chinese trademarks, 2 confidential varieties and 8 protected varieties.