Dual Gun Technology: Deputy General Manager Li Chaozhen has reduced his shareholding by 0.33%.

Double Gun Technology Announcement: The company's director and deputy general manager, Li Chaozhen, disclosed a reduction plan on August 30, 2025, which has been fully implemented. From September 25 to November 20, he reduced a total of 236,400 shares through centralized bidding, accounting for 0.33% of the total share capital, with an average selling price of 27.1 yuan per share, in a price range of 25.58 yuan per share to 28.03 yuan per share. Before the reduction, he held 946,100 shares, and after the reduction, he held 709,700 shares, accounting for 1.00%.