Seventh Reminder Announcement on the Repurchase of Jianhuan Convertible Bonds

Securities Code: 300529

Bond Code: 123117

Securities Abbreviation: Jianhuan Bio

Bond Abbreviation: Jianhuan Convertible Bond

Announcement Number: 2026-054

Jianhuan Biotechnology Group Co., Ltd.

Seventh Reminder Announcement on the Repurchase of Jianhuan Convertible Bonds

The Company and all members of the Board of Directors guarantee that the content of this information disclosure is true, accurate, and complete, and that there are no false records, misleading statements, or major omissions.

Special Reminder:

1. Bond Abbreviation: Jianhuan Convertible Bond

2. Bond Code: 123117

3. Convertible Bond Par Value: 100 yuan/share

4. Repurchase Price: 100.247 yuan/share (including interest and tax)

5. Repurchase Condition Met Date: August 3, 2026

6. Repurchase Application Period: August 7, 2026 to August 13, 2026

7. Issuer Fund Arrival Date: August 18, 2026

8. Repurchase Payment Date: August 19, 2026

9. Investor Repurchase Payment Arrival Date: August 20, 2026

10. "Jianhuan Convertible Bond" Conversion is Suspended During the Repurchase Application Period

11. Holders of "Jianhuan Convertible Bond" Have the Option to Repurchase; This Repurchase is Not Mandatory.

12. Risk Warning: (1) If investors choose to repurchase, it is equivalent to selling their holdings of "Jianhuan Convertible Bond" at 100.247 yuan/share (including interest and tax). As of now, the closing price of "Jianhuan Convertible Bond" is higher than the current repurchase price. Investors choosing to repurchase may incur losses. Investors are requested to pay attention to the risks. (2) In the last two interest calculation periods of "Jianhuan Convertible Bond," holders of "Jianhuan Convertible Bond" can exercise their repurchase right once each year after the repurchase condition is first met. If holders of "Jianhuan Convertible Bond" do not apply for repurchase and complete the repurchase during the company's announced repurchase application period when the repurchase condition is first met, they cannot exercise the repurchase right in that interest calculation year. Holders of "Jianhuan Convertible Bond" cannot exercise partial repurchase rights multiple times.

Jianhuan Biotechnology Group Co., Ltd. (hereinafter referred to as the "Company") announced that from June 23, 2026, to August 3, 2026, the closing price of the Company's stock was lower than 70% of the current "Jianhuan Convertible Bond" conversion price of 38.15 yuan/share, which is 26.71 yuan/share, and "Jianhuan Convertible Bond" is in its last two interest calculation periods. According to the relevant provisions of the "Prospectus for the Issuance of Convertible Corporate Bonds by Jianhuan Biotechnology Group Co., Ltd. to Unspecified Targets" (hereinafter referred to as the "Prospectus"), the conditional repurchase clause of "Jianhuan Convertible Bond" has taken effect. The relevant matters of the repurchase of "Jianhuan Convertible Bond" are hereby announced as follows:

I. Overview of Repurchase

According to the "Prospectus," the provisions of the conditional repurchase clause are as follows: