Notice of 2025 Annual Shareholders' Meeting

The Company will hold the 2025 Annual General Meeting at 14:30 on 18 June 2026. Meeting agenda: 1. 2025 work report of the board of directors 2. 2025 annual report and its summary 3. 2025 annual accounts report 4. Reappointment of 2026 audit firm 5. Unrecovered losses account for one third of the paid-in capital 6. Confirmation of 2025 remuneration for directors and senior management, and formulation of 2026 remuneration plan 7. Amendments to the remuneration management system for directors and senior management 8. 2025 profit distribution plan 9. Authorization to the board to handle matters regarding the share offering to specific parties via a simplified procedure 10. Application for comprehensive credit line to financial institutions by a wholly-owned subsidiary and the Company's provision of guarantee for it The detailed profit distribution plan is as follows: 1) Cash dividend/10 shares (tax included): CNY0.00000000 2) Bonus issue from profit (share/10 shares): none 3) Bonus issue from capital reserve (share/10 shares): none Meeting attendees: 1.A-share holders registered at CSDC Shenzhen after the close of trading on 12 June 2026 are entitled to vote. Original notarized power of attorney for voting is required. 2. Directors of the board, supervisors of the supervisory committee, senior executives and appointed lawyers are entitled to attend the meeting. Registration period: from 17 June 2026 to 17 June 2026 The Company's shareholder may choose to vote online via the trading system of Shenzhen Stock Exchange or via the website of http://wltp.cninfo.com.cn. Part I Voting via the trading system Voting date: 18 June 2026 Voting code:362591 Voting abbreviation:Hengda Hi-tech voting Voting process: 1. To input the "buy" instruction to begin voting 2.To input the serial number of the annual general meeting proposals under the item of "subscription price" "1 share" for voting for, "2 shares" for voting against and "3 shares" for "abstention". Part II Voting via the internet shareholders may choose the CA (certification authority) or service password for identity verification. As to the service password, shareholders may apply for a password on the website http://www.szse.cn or http://wltp.cninfo.com.cn. Voting period: from 18 June 2026 to 18 June 2026.

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