no. Yungongtang is a registered trademark of Anhui Yungongtang Chinese Medicine Co., Ltd., which was established on January 4, 221. tongjitang is a cluster enterprise integrating chain pharmacies, medical logistics, health management, chain hospitals and chain pension. Both of them belong to a cooperative relationship. tongjitang sells drugs produced by Yungongtang, and the company is not a subsidiary of tongjitang. The two cooperation can better enhance the popularity and sales volume of the two enterprises.