Announcement Regarding Changes in Equity Interests of the Controlling Shareholder, Actual Controller, and Their Persons Acting in Concert Reaching 1% and 5% Integer Multiples

Stock Code: 301156 Stock Abbreviation: Meinong Bio Announcement No.: 2026-040

Shanghai Meinong Biotechnology Co., Ltd.

Announcement Regarding Changes in Equity Interests of the Controlling Shareholder, Actual Controller, and Their Persons Acting in Concert Reaching 1% and 5% Integer Multiples

The Company and all members of the Board of Directors guarantee that the information disclosed is true, accurate, and complete, with no false records, misleading statements, or major omissions.

Special Notice:

1. This change in equity interests involves the controlling shareholder and actual controller of Shanghai Meinong Biotechnology Co., Ltd. (hereinafter "the Company"), Mr. Hong Wei, and his persons acting in concert, Shanghai Quanyu Zhihe Management Consulting Partnership (Limited Partnership) (hereinafter "Quanyu") and Ms. Hong Jun (hereinafter collectively referred to as "Information Disclosure Obligors"). Due to the Company's implementation of capital reserve capitalization, share buyback and cancellation, share reductions by Quanyu, and the vesting of the Company's restricted stock incentive plan, the total shareholding ratio of the Information Disclosure Obligors changed from 45.67% at the time of the Company's initial public offering and listing to 44.97%, reaching 1% and 5% integer multiples.

2. This change in equity interests does not involve a tender offer, will not lead to a change in the Company's controlling shareholder or actual controller, will not affect the stability of the Company's control, and will not impact the Company's governance structure or continuous operations.

I. Situation Regarding Equity Changes Reaching 1% Integer Multiples

Since the Company disclosed the "Announcement Regarding Changes in Equity Interests of Shareholders Holding More Than 5% and Their Persons Acting in Concert Reaching 1% Integer Multiples" on the CNINFO website (www.cninfo.com.cn) on January 28, 2026, Quanyu has continued to implement its share reduction plan during the specified period. Additionally, due to the completion of the registration for the first vesting period of the 2025 Restricted Stock Incentive Plan, the Company's total share capital increased from 183,020,077 shares to 184,107,007 shares, causing the total shareholding ratio of the Information Disclosure Obligors to passively decrease to 44.97%, reaching the 1% integer multiple threshold. The relevant details are announced as follows:

1. Basic Information

Equity Change Period: January 28, 2026 to August 6, 2026

Equity Change Process:

The Company disclosed the "Announcement Regarding the Early Termination of the Share Reduction Plan by Shareholders Holding More Than 5% of Shares" on February 9, 2026. Following the disclosure of the "Announcement Regarding Changes in Equity Interests of Shareholders Holding More Than 5% and Their Persons Acting in Concert Reaching 1% Integer Multiples" on January 28, 2026, the total shares held by the Information Disclosure Obligors decreased from 64,749,610 shares to 63,679,810 shares, with the shareholding ratio declining from 45.99% to 45.23%.

The Company disclosed the "Announcement on the Results of the First Vesting Period of the 2025 Restricted Stock Incentive Plan and Listing of Shares" on August 3, 2026. The 1,086,930 restricted shares vested during the first period of the 2025 Restricted Stock Incentive Plan were listed and circulated on August 6, 2026. The Company's total share capital increased from 183,020,077 shares to 184,107,007 shares, causing the total shareholding ratio of the Information Disclosure Obligors to passively decrease to 44.97%.

Stock Abbreviation: Meinong Bio Stock Code: 301156

Direction of Change: Increase [ ] Decrease [x] Persons Acting in Concert: Yes [x] No [ ]

Whether First Largest Shareholder or Actual Controller: Yes [x] No [ ]