Core Insights - Shanghai Xiaohe Network Technology Co., Ltd. has been established, with Wu Haifeng as the legal representative [1] - The company is indirectly wholly owned by Douyin Co., Ltd. [1] Company Overview - The business scope of Shanghai Xiaohe includes internet information services, drug internet information services, medical device internet information services, and second-class value-added telecommunications services [1]

Group 1 - Fujian Saily Medical Technology Co., Ltd. has been established with a registered capital of 10 million yuan [1] - The company's business scope includes supply chain management services, operation of Class III medical devices, internet information services for medical devices, and urban delivery transportation services (excluding hazardous goods) [1] - The company is jointly held by Saily Medical and other stakeholders according to the equity penetration data from Qichacha [1]