Announcement on Receipt of Notice of Delisting

Stock Code: 000004 Stock Abbreviation: *ST Guohua Announcement No.: 2026-047 Shenzhen Guohua Net An Technology Co., Ltd Regarding the public notice of receipt of the final listing prior notice The company and all members of the board of directors guarantee that the disclosed information is true, accurate, and complete, without any false records or misleading Sexual statements or material omissions. On April 28, 2026, Shenzhen Guohua Cybersecurity Technology Co., Ltd. (hereinafter referred to as the "Company") Received the "Prior Notice of Termination of Listing" issued by the Shenzhen Stock Exchange (Company Department Letter [2026] No. 232). The main contents are as follows: