Announcement on Progress in Repurchasing Shares through Call Auction
Securities code: 603387 Securities abbreviation: Jidan Biotechnology Announcement number: 2026-035
Jidan Biotechnology Co., Ltd.
Announcement on the progress of repurchasing the company's shares through centralized bidding transactions
The company's board of directors and all directors guarantee that the contents of this announcement do not contain any false records, misleading statements or major omissions, and assume legal responsibility for the authenticity, accuracy and completeness of its contents.
Important content reminder:
The first disclosure date of the repurchase plan is 2026/7/4
The implementation period of the buyback plan is July 3, 2026 ~ July 2, 2027
The estimated repurchase amount is 50 million yuan to 100 million yuan
□Reduce registered capital
√Used for employee stock ownership plans or equity incentives
Repurchase purpose
□Used to convert company convertible bonds
□To protect the company’s value and shareholders’ rights and interests
Cumulative number of shares repurchased 715,700 shares
The cumulative number of repurchased shares accounts for 0.14% of the total share capital.
The cumulative repurchased amount is RMB 5,754,364.00
The actual repurchase price range is 7.95 yuan/share~8.10 yuan/share
1. Basic information on share repurchase
Jidan Biotechnology Co., Ltd. (hereinafter referred to as the "Company") held the 13th meeting of the fourth session of the Board of Directors on July 3, 2026. The meeting reviewed and approved the "Proposal on Repurchasing the Company's Shares through Centralized Bidding Transactions" and agreed that the company would use its own funds or self-raised funds to repurchase the company's shares through centralized bidding transactions. The repurchased shares will be used to implement employee stock ownership plans or equity incentives, and the total repurchase funds will not be less than RMB 5,000. Ten thousand yuan (inclusive), not exceeding RMB 100 million (inclusive), the repurchase price shall not exceed RMB 12.51/share (inclusive), and the repurchase period shall be within 12 months from the date when the board of directors considers and approves the repurchase plan. For details, please refer to the "Jidan Bio: Announcement and Repurchase Report on the Plan to Repurchase the Company's Shares through Centralized Bidding Transactions" (Announcement Number: 2026-024) disclosed by the company on the Shanghai Stock Exchange website (www.sse.com.cn) and the Shanghai Securities News on July 4, 2026.
2. Progress of share repurchase
According to the "Share Repurchase Rules of Listed Companies", "Shanghai Stock Exchange Self-Regulatory Supervision Guidelines for Listed Companies No. 7 - Repurchase of Shares" and other relevant regulations, during the repurchase period, the company should disclose the progress of the repurchase as of the end of the previous month within the first three trading days of each month. The company’s progress in repurchasing shares is now announced as follows: In August 2026, the company did not repurchase shares.
As of August 31, 2026, the company has repurchased a total of 715,700 shares, accounting for 0.14% of the company's current total share capital. The highest price of the repurchase transaction was 8.10 yuan/share, and the lowest price was 7.95 yuan/share. The total amount of funds paid was RMB 5,754,364.00 (excluding transaction fees such as transaction commissions).
This repurchase complies with relevant laws and regulations and the requirements of the company's share repurchase plan.
3. Other matters
The company will strictly abide by the "Share Repurchase Rules for Listed Companies", "Shanghai Stock Exchange Self-Regulatory Guidelines for Listed Companies No. 7 - Repurchase of Shares" and other relevant regulations, make repurchase decisions based on market conditions within the repurchase period and implement them. At the same time, it will perform information disclosure obligations in a timely manner based on the progress of the share repurchase matter. Investors are advised to pay attention to investment risks.
Announcement is hereby made.
Board of Directors of Jidan Biotechnology Co., Ltd.
September 1, 2026