Dual Gun Technology: Li Chaozhen reduced his holdings by 0.33% within 3 months.

Double Gun Technology Announcement: Directors Li Chaozhen and Zhou Zhaocheng hold 946,100 shares and 921,400 shares respectively. They plan to reduce their holdings by no more than 236,500 shares and 230,300 shares respectively through centralized bidding within 3 months after the disclosure of this announcement. The above-mentioned shares are from the shares already issued before the initial public offering, and the reduction price will be determined based on the secondary market price at the time of reduction.