Notice of the 2025 Annual Shareholders' Meeting

Stock Code: 000004 Stock Abbreviation: *ST Guohua Announcement No.: 2026-043 Shenzhen Guohua Cybersecurity Technology Co., Ltd Notice on convening the 2025 Annual General Meeting of Shareholders 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.

1. Basic Information of the Meeting
2. Shareholders' Meeting Session: 2025 Annual General Meeting
3. Convener of the shareholders' meeting: Board of Directors
4. The convening and holding of this meeting complies with the Company Law of the People's Republic of China and the Shenzhen Stock Exchange Stock Listing Rules" and "Shenzhen Stock Exchange Listed Company Self-Regulatory Guidelines No. 1 — Main Board Listing Public." Laws, administrative regulations, departmental rules, normative documents, and the Articles of Association related to the company's Articles of Association and other laws, administrative regulations, departmental rules, normative documents, and the Company's Articles of Association

Regulation.

1. Meeting Time: (1) On-site meeting time: May 18, 2026, 14:30 (2) Online voting time: The specific time for online voting via the Shenzhen Stock Exchange system is May 18, 2026, 9:15-9:25, 9:30-11:30, 13:00-15:00; via Shenzhen Stock Exchange The specific voting time for the Internet Voting System is any time from 9:15 to 15:00 on May 18, 2026.
2. Method of convening the meeting: combining on-site voting with online voting.
3. Equity registration date for the meeting: May 11, 2026
4. Attendees: (1) Ordinary shareholders or their agents holding shares of the company on the share registration date;

All companies registered with China Securities Depository and Clearing Shenzhen Branch at the close of trading on the afternoon of the share registration date are all ordinary Shareholders have the right to attend the shareholders' meeting and may appoint proxies in writing to attend meetings and participate in voting, The shareholder proxy does not have to be a shareholder of the Company; (2) Company directors and senior management personnel; (3) Lawyers hired by the company; (4) Other personnel required by relevant regulations to attend the shareholders' meeting.

1. Conference Location: 12th Floor, Cuilin Building, No. 10 Kaifeng Road, Maling Community, Meilin Street, Futian District, Shenzhen Conference room II. Matters to be reviewed at the meeting
2. Proposal Code Table for This Shareholders' Meeting Note Proposal Code Proposal Name Proposal Type The column with checkmarks in this column is acceptable to vote General Proposals: 100 non-cumulative voting proposals √ All proposals except those with cumulative votes

Regarding the company's uncovered losses reaching paid-in share capital 4.00 Non-cumulative voting proposal √ Proposals accounting for one-third of the total