Kosti Technology: Shareholder Liang Hongjian has reduced his shareholding by 3.00%.

Announcement of Cositech Corporation: During the reduction plan, shareholder Mr. Liang Hongjian has reduced a total of 4.7042 million shares of the company through centralized bidding and block transactions, representing 3.00% of the total share capital of the company. The reduction price range is 49.47 to 67 yuan per share, with a total reduction amount of 262 million yuan. After the reduction, Mr. Liang Hongjian currently holds 28.6363 million shares, with a shareholding ratio of 18.25%.