SUNSTONE: Lang Guanghui has reduced his holdings by 2.00%

SUNSTONE announced that the company's controlling shareholder and actual controller, Lang Guanghui, reduced his holdings by 4.9809 million shares, accounting for 1%, through centralized bidding from September 3 to October 21, 2025, and reduced his holdings by 4.981 million shares, accounting for 1%, through block trading, with a reduction price of 23.2 to 27.31 yuan/share, cashing out 248 million yuan; the concerted actor Xuan Yuan Ke Xin No. 182 reduced its holdings by 1.0252 million shares, accounting for 0.21%, through block trading from October 17 to October 20, with a price of 24.2 to 24.32 yuan/share, cashing out 24.8791 million yuan, and has completely liquidated and terminated the concerted action relationship. The reduction plan has been completed, and the combined shareholding ratio of Lang Guanghui and the concerted actors has decreased from 26.29% to 25.80%