it doesn't matter. Beijing Qiancao and Tongrentang are two different brands with their own trademarks and intellectual property rights. Qiancao Chinese Medicine is a Chinese medicine enterprise integrating R&D, production and sales, while Tongrentang is a brand owned by Beijing Tongrentang Pharmaceutical Co., Ltd., which mainly produces proprietary Chinese medicines, so Beijing Qiancao has nothing to do with Tongrentang.