Pre-disclosure Announcement on Share Reduction Plan by Shareholders Holding Over 5% of Shares

Securities Code: 300864
Securities Abbreviation: Nanjing University Environmental Planning and Design Institute Group Co., Ltd.
Announcement Number: 2026-002

Pre-disclosure Announcement on Share Reduction Plan by Shareholders Holding Over 5% of Shares

Special Reminder:

1. Nanjing Guohuan Investment Management Co., Ltd. (hereinafter referred to as "Guohuan Investment"), holding 40,172,874 shares (25.4403% of the total share capital) of Nanjing University Environmental Planning and Design Institute Group Co., Ltd. (hereinafter referred to as "the Company"), plans to reduce its holdings by no more than 1,951,300 shares, which does not exceed 1.2357% of the total shares of the Company, through centralized bidding or block trading within three months starting from no less than 15 trading days after the disclosure of this reduction announcement (from April 28, 2026, to July 27, 2026).
2. Nanjing Nangao Management Consulting Center (Limited Partnership) (hereinafter referred to as "Nangao Partnership"), holding 13,426,977 shares (8.5029% of the total share capital) of the Company, plans to reduce its holdings by no more than 1,372,500 shares, which does not exceed 0.8692% of the total shares of the Company, through centralized bidding or block trading within the same period.
3. Nanjing Liangjiang Management Consulting Center (Limited Partnership) (hereinafter referred to as "Liangjiang Partnership"), holding 13,044,549 shares (8.2607% of the total share capital) of the Company, plans to reduce its holdings by no more than 992,200 shares, which does not exceed 0.6283% of the total shares of the Company, through centralized bidding or block trading within the same period.

The Company has recently received notification letters regarding the share reduction plans from shareholders holding over 5% of shares, Guohuan Investment, Nangao Partnership, and Liangjiang Partnership. The relevant information is announced as follows:

I. Basic Information of Shareholders

Shareholders Guohuan Investment, Nangao Partnership, and Liangjiang Partnership guarantee that the information provided to the Company is true, accurate, and complete, without false records, misleading statements, or significant omissions. The Company and all members of the Board of Directors guarantee that the announcement content is consistent with the information provided by the information disclosure obligors.

As of the date of this announcement, the specific shareholding situation is as follows: