Gongdong Medical: Shi Huiyong and Jin Chi collectively reduced their holdings by 6,607,240 shares, reducing their shareholding percentage to 61.21%.

Arched Medical Announcement, December 16, 2025, the company's controlling shareholder and actual controller Shi Huiyong accumulated a total of 4,402,400 shares through block trading, reducing the shareholding ratio from 50.27% to 48.27%; Taizhou Jincheng Investment Management Partnership Enterprise accumulated a total of 2,204,840 shares through centralized bidding, reducing the shareholding ratio from 6.47% to 5.47%. After this equity change, Shi Huiyong, Jincheng Investment and their concerted actors collectively hold the company's share ratio from 63.96% to 61.21%, and the equity change touches the 1% scale.