Runyuanchang Tea Factory is located in the Brown Mountain Tea Area of Ouhai County, Xishuangbanna Prefecture, Yunnan. The Brown Mountain Tea Area is one of the best producing areas in the Pu'er tea industry. The tea king Lao Banzhang is located in the Brown Mountain Tea Area. Runyuanchang is positioned to produce collectible Pu'er tea products for Pu'er tea enthusiasts who understand tea, focusing on the later conversion value of the product. In the selection of materials, put forward three insistences: adhere to the main tree tea, adhere to the spring tea, adhere to the alpine ancient tree tea; the product taste is characterized by "strong and rich, full and thick".