Securities code: 688276 Securities abbreviation: Baike Biotechnology Announcement No.: 2025-008

Changchun Baike Biotechnology Co., Ltd

Notice on the convening of the first extraordinary shareholders' meeting in 2025

The board of directors and all directors of the company guarantee that there are no false records, misleading statements or material omissions in the content of this announcement, and assume legal responsibility for the authenticity, accuracy and completeness of its content in accordance with the law.

Important Content Notes:

Date of shareholders' meeting: April 7, 2025

The network voting system used in this shareholders' meeting: the network voting system of the shareholders' meeting of the Shanghai Stock Exchange

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1. Basic information on the convening of the meeting

(1) The type and session of the shareholders' meeting

The first extraordinary shareholders' meeting in 2025

(2) Convener of the shareholders' meeting: the board of directors

(3) Voting method: The voting method adopted at this shareholders' meeting is a combination of on-site voting and online voting

(iv) The date, time and place of the on-site meeting

Date and time: April 7, 2025 at 14:00

Venue: Conference Room on the 5th Floor of Changchun Baike Biotechnology Co., Ltd. (No. 138, Zhuo Zhuo Street, Changchun City, Jilin Province)

(5) The system, start and end dates and voting times of online voting.

Online voting system: the online voting system of the general meeting of shareholders of the Shanghai Stock Exchange

Online voting: April 7, 2025

Until April 7, 2025

The Shanghai Stock Exchange network voting system is adopted, and the voting time through the voting platform of the trading system is shares

The trading hours on the day of the East Meeting are 9:15-9:25, 9:30-11:30, 13:00-15:00, and the voting time through the Internet voting platform is 9:15-15:00 on the day of the shareholders' meeting.

(6) Voting procedures for margin trading, refinancing, agreed repurchase business accounts and Shanghai-Hong Kong Stock Connect investors

Accounts related to margin trading, refinancing, agreed repurchase business, and Shanghai-Hong Kong Stock Connect investors shall be subject to the Self-Regulatory Guidelines for Listed Companies on the Science and Technology Innovation Board of the Shanghai Stock Exchange No. 1 – Standardized Operation.

(7) Involving public solicitation of shareholders' voting rights

not

2. Matters to be considered by the meeting

The shareholders' meeting deliberated on the proposal and the type of voting shareholder

Types of voting shareholders

Serial Number Name of the motion

Shareholders of A shares

Non-cumulative voting motions

1 Proposal on the by-election of non-independent directors of the sixth session of the board of directors √

1. Explain the time and media of disclosure of each proposal

The proposal submitted to the shareholders' meeting for consideration has been deliberated and approved by the fourth meeting of the sixth board of directors of the company

The announcement was made on March 21, 2025 on the website of the Shanghai Stock Exchange (www.sse.com.cn) and in the "China

Securities News, Shanghai Securities News, and Securities Times.

2. Special resolution: None

3. Proposals for separate counting of votes for small and medium-sized investors: 1

4. Proposals involving the recusal of related shareholders from voting: none

Name of related shareholders who should abstain from voting: None

5. Proposals involving the participation of preferred shareholders in voting: none

3. Precautions for voting at the general meeting of shareholders

(1) Shareholders of the Company exercise their voting rights through the online voting system of the general meeting of shareholders of the Shanghai Stock Exchange,

You can not only log in to the voting platform of the trading system (through the trading terminal of the securities company designated for trading) to vote, but also log in to the Internet voting platform (website: vote.sseinfo.com) to vote. If you log in to the Internet voting platform for the first time to vote, investors need to complete shareholder identity verification. For specific operations, please refer to the instructions on the website of the Internet voting platform.

(2) If the same voting right is repeated through on-site, the firm's online voting platform or other means, the result of the first vote shall prevail.

(3) Shareholders can only submit all proposals after they have voted on them.

4. Attendees of the meeting

(1) Shareholders of the Company registered in the Shanghai Branch of China Depository and Clearing Co., Ltd. at the close of the afternoon of the share registration date have the right to attend the general meeting of shareholders (see the table below for details) and may entrust proxies to attend the meeting and vote in writing. The nominee does not have to be a shareholder of the company.

Share Class Stock Code Stock Abbreviation Share Record Date

A shares 688276 100 grams of biotechnology 2025/3/31

(2) Directors, supervisors and senior management of the company.

(3) Lawyers hired by the company.

(iv) Other personnel

5. Registration for the Conference

1. Shareholders (including shareholders' representatives) attending the meeting need to provide the following documents when registering or registering:

(1) If an individual shareholder attends the meeting in person, he or she shall present the shareholder's account card and his or her ID card or other valid documents or certificates that can show his identity; If another person is entrusted to attend the meeting, the agent shall also present his or her valid identity document and the power of attorney of the shareholder. (See Annex 1 for details)

(2) The legal person shareholder shall be attended by the legal representative or the agent entrusted by the legal person shareholder. If the legal representative attends the meeting, he or she shall present the shareholder's account card, his or her ID card, and a valid certificate that can prove that he or she has the qualification of the legal representative; If an agent is entrusted to attend the meeting, the agent shall also present his or her ID card and corporate shares

A written power of attorney issued by Dong. (See Annex 1 for details)

(3) Margin investors attending the meeting shall hold the business license, securities account certificate and power of attorney issued to the investor by the securities company related to margin and securities lending; If the investor is an individual, he or she shall also hold his or her ID card or other valid documents that can show his identity, and if the investor is a unit, he shall also hold the business license of the unit, the ID card of the participants, and the power of attorney issued by the legal representative of the unit. (See Annex 1 for details)

2. Registration time: April 2, 2025, 9:00-11:30 a.m., 1:00-4:00 p.m.

3. Place of registration: Office of the Board of Directors of Changchun Baike Biotechnology Co., Ltd. Shareholders may take a letter or

Registration by fax (fax or letter should be delivered or faxed to the directors of the Company before 16:00 on April 2, 2025.)

Office of the Council) and please indicate the contact number on the fax or letter.

6. Other matters

1. Shareholders and shareholders' representatives attending the meeting shall pay for their own transportation and accommodation expenses.

2. Contact: Tong Xuelian, Tel: 0431-81871518.

The announcement is hereby made.

Board of Directors of Changchun Baike Biotechnology Co., Ltd

March 21, 2025

Attachment 1: Power of Attorney

Attachment 1: Power of Attorney

Power of Attorney

Changchun Baike Biotechnology Co., Ltd.:

I hereby entrust Mr. (Ms.) to attend the meeting on April 7, 2025 on behalf of my unit (or myself).

of your company's first extraordinary shareholders' meeting in 2025 and exercise voting rights on your behalf.

Number of ordinary shares held by the delegator:

Number of preferred shares held by the client:

Principal Shareholder Account Number:

Serial Number Name of Non-cumulative Vote Proposal Agree Oppose Abstention

1. Proposal on the by-election of non-independent directors of the sixth session of the board of directors

Signature (seal) of the principal: Signature of the trustee:

Trustee's ID Number: Trustee's ID Number:

Date of commission: YYYYYYYYYYYYYYYYYYYYYY

Remark:

The Trustee shall select one of the intentions of "Agree", "Oppose" or "Abstain" in the Power of Attorney and mark "√", and the Trustee shall have the right to vote according to his own wishes if the Principal does not make specific instructions in this Power of Attorney.