/Jidan Biotechnology: Notice on convening the 2025 Annual Shareholders Meeting
NEWS

Jidan Biotechnology: Notice on convening the 2025 Annual Shareholders Meeting

Shanghai Stock Exchange
2026/04/30

Securities code: 603387 Securities abbreviation: Jidan Biotechnology Announcement number: 2026-013

Jidan Biotechnology Co., Ltd.

Notice on Convening the 2025 Annual Shareholders Meeting

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:

 Date of shareholders’ meeting: May 22, 2026

 The online voting system adopted for this shareholders’ meeting: Shanghai Stock Exchange Shareholders’ Meeting Online Voting System

1. Basic information on convening the meeting

(1) Type and session of shareholders’ meeting

2025 Annual Shareholders Meeting

(2) Convener of shareholders’ meeting: Board of Directors

(3) Voting method: The voting method used in this shareholders’ meeting is a combination of on-site voting and online voting.

(4) Date, time and place of on-site meeting

Date and time of convening: May 22, 2026 14:00

Venue: Conference Room of Jidan Biotechnology Co., Ltd., No. 9 Bofu Road, Yanjiang Industrial Development Zone, Liuhe District, Nanjing City

(5) Online voting system, start and end dates and voting time.

Online voting system: Shanghai Stock Exchange Shareholders Meeting online voting system

Online voting starts and ends on May 22, 2026

Until May 22, 2026

Using the Shanghai Stock Exchange's online voting system, the voting time through the trading system voting platform is the trading time period on the day the shareholders' meeting is held, that is, 9:15-9:25, 9:30-11:30, 13:00-15:00; the voting time through the Internet voting platform is 9:15-15:00 on the day the shareholders' meeting is held.

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

Voting involving accounts related to margin financing and securities lending, refinancing business, agreed repurchase business, and Shanghai-Hong Kong Stock Connect investors shall be implemented in accordance with the "Shanghai Stock Exchange Self-Regulatory Guidelines for Listed Companies No. 1 - Standardized Operations" and other relevant regulations.

(7) Involving public solicitation of shareholder voting rights

None

2. Matters to be considered at the meeting

The resolutions to be reviewed and the types of voting shareholders at this shareholders’ meeting

Voting shareholders

Model serial number Proposal name

Non-cumulative voting resolution for A-share shareholders

1 "Proposal on the Company's 2025 Annual Report and its Summary" √ 2 "Proposal on the Company's 2025 Board Work Report" √ 3 "Proposal on the Company's 2025 Profit Distribution Plan" √ 4 "Requesting the Shareholders Meeting to Authorize the Board of Directors to Formulate and Implement the 2026 Interim Dividend Plan √

motion"

5 "Proposal on the remuneration of the company's directors and senior managers" √ 6 "Proposal on the use of self-owned idle funds for investment and financial management" √ 7 "Proposal on the company and its wholly-owned and controlled subsidiaries applying for comprehensive credit lines from banks √

case"

8 "Proposal on the Re-appointment of the Accounting Firm" √ 9 "Proposal on the Establishment of Corporate Governance-Related Systems" √ 10 "Proposal on the Company's Shareholder Return Plan for the Next Three Years (2026-2028)" √

Note: This shareholders' meeting will also hear the "2025 Independent Directors' Work Report".

  1. The time and disclosure media of each proposal

All the above proposals have been reviewed and approved at the 11th meeting of the company's fourth session of the board of directors. For details, please refer to the relevant announcements published by the company on the website of the Shanghai Stock Exchange (www.sse.com.cn) and the Shanghai Securities News on the same day.

  1. Special resolutions: Motion 3, Motion 4, Motion 10

  2. Proposals on separate counting of votes for small and medium investors: Proposal 1, Proposal 3, Proposal 4, Proposal 5, Proposal 8, Proposal 9, Proposal 10

  3. Proposals involving related shareholders’ avoidance of voting: None

Name of related shareholders who should avoid voting: None

  1. Proposals involving preference shareholders’ participation in voting: None

3. Things to note when voting at the shareholders’ meeting

(1) The shareholders of the Company who exercise their voting rights through the Shanghai Stock Exchange Shareholders Meeting online voting system can either log in to the trading system voting platform (through the trading terminal of the securities company designated for trading) to vote, or log in to the Internet voting platform (website: vote.sseinfo.com) to vote. When logging into the Internet voting platform to vote for the first time, investors need to complete shareholder identity authentication. For specific operations, please see the instructions on the Internet voting platform website.

In order to better serve the majority of small and medium-sized investors, ensure that small and medium-sized investors who are willing to vote can participate in the meeting in a timely manner and facilitate voting. The company plans to use the shareholders' meeting reminder service provided by SSE Information Network Co., Ltd. (hereinafter referred to as "SSE Information"), and entrust SSE Information to proactively remind shareholders to participate in the meeting and vote based on the shareholder list on the equity registration date through smart text messages and other forms, and actively push information such as invitations to participate in the shareholders' meeting and resolutions to each investor. After receiving the smart text message, investors can vote directly according to the prompts in the "User Manual of One-Click Online Voting Service for Listed Company Shareholders Meetings" (link: https://vote.sseinfo.com/i/yjt_help.pdf). In case of network congestion, etc., they can still vote through the original trading system voting platform and Internet voting platform.

(2) For a shareholder holding multiple shareholder accounts, the number of exercisable voting rights is the total number of common shares of the same category and preference shares of the same variety held by all shareholder accounts under his or her name.

Shareholders holding multiple shareholder accounts who participate in online voting at the shareholders' meeting through the Exchange's online voting system can participate through any of their shareholder accounts. After the voting, it shall be deemed that all ordinary shares of the same category and preferred shares of the same variety under all shareholder accounts have voted with the same opinion.

If a shareholder holding multiple shareholder accounts votes repeatedly through multiple shareholder accounts, the voting opinions of the same class of ordinary shares and the same type of preferred stocks under all shareholder accounts shall be based on the first voting results of each class and type of stocks respectively.

(3) If the same voting right is voted repeatedly through on-site, online voting platform of the Exchange or other methods, the result of the first vote shall prevail.

(4) Shareholders must vote on all proposals before they can be submitted.

4. Participants at the meeting

(1) Shareholders of the company who are registered in the Shanghai Branch of China Securities Depository and Clearing Co., Ltd. at the market close on the afternoon of the equity registration day have the right to attend the shareholders’ meeting (see the table below for details), and may entrust a proxy in writing to attend the meeting and participate in voting. The agent does not have to be a shareholder of the company.

Share class Stock code Stock abbreviation Equity registration date

A shares 603387 Jidan Biotech 2026/5/18

(2) Directors and senior managers of the company.

(3) Lawyers hired by the company.

(4) Other personnel

5. Meeting registration method

  1. The legal person shareholders of the company shall attend the meeting by the legal representative or the agent entrusted by the legal representative. If the legal representative attends the meeting, he or she should present his or her ID card, a valid certificate that proves the identity of the legal representative, a copy of the business license of the legal entity (stamped with the official seal of the legal person), and the shareholding certificate to register for the meeting; if an agent is appointed to attend the meeting, the agent should present his or her ID card, a copy of the ID card of the legal representative of the legal person shareholder, a letter of authorization from the legal representative of the shareholder unit (stamped with the official seal of the legal person), a copy of the business license of the legal entity (stamped with the official seal of the legal person), and the shareholding certificate to register for the meeting;

  2. If a natural person shareholder attends the meeting in person, he or she should present his or her ID card and shareholding certificate to register for the meeting; if an individual shareholder entrusts a proxy to attend the meeting, the agent should present his or her ID card, power of attorney and shareholding certificate to register for the meeting;

  3. Shareholders from other places can send relevant information to the company's securities department for registration by letter or email. Please indicate "Participate in the shareholders' meeting" on the letter or email. The letter will be subject to the postmark upon receipt;

  4. Registration time for attending the meeting: 8:00-12:00 am, 13:30-17:30 pm on May 21, 2026;

  5. Registration location: Group Planning Department of Jidan Biotechnology Co., Ltd., No. 9 Bofu Road, Yanjiang Industrial Development Zone, Liuhe District, Nanjing City.

6. Other matters

  1. On-site participants must arrive at the meeting location half an hour before the meeting;

  2. Shareholders attending the meeting are responsible for their own transportation, food and accommodation expenses;

  3. Conference consultation: Contact number: 025-68568577, contact email: [email protected], contact person: Tang Xu

Announcement is hereby made.

Board of Directors of Jidan Biotechnology Co., Ltd.

April 30, 2026

Attachment 1: Power of attorney

Attachment 1: Power of attorney

Power of attorney

Jidan Biotechnology Co., Ltd.:

I hereby authorize Mr. (Ms.) to attend on May 22, 2026 on behalf of this unit (or myself).

The company’s 2025 annual shareholders’ meeting was held and exercised voting rights on its behalf.

Number of common shares held by the client:

Number of preferred shares held by the client:

Client shareholder account number:

No. Name of non-cumulative voting motion Agree Oppose Abstain 1 "Proposal on the Company's 2025 Annual Report and its Summary" 2 "Proposal on the Company's 2025 Board of Directors Work Report" 3 "Proposal on the Company's 2025 Profit Distribution Plan"

"Proposal on Requesting the Shareholders' Meeting to Authorize the Board of Directors to Formulate and Implement the 2026 Interim Dividend Plan"

5 "Proposal on the remuneration of the company's directors and senior managers" 6 "Proposal on the use of self-owned idle funds for investment and financial management" "Proposal on the company and its wholly-owned and controlled subsidiaries applying for comprehensive credit lines from banks"

8 "Proposal on Re-appointment of Accounting Firm"

9 "Proposal on Establishing Corporate Governance Related Systems"

"About the company's shareholder return plan for the next three years (2026-2028

year) motion"

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

Trustee’s ID number: Trustee’s ID number:

Date of entrustment: Year Month Day Remarks:

The client should choose one of the "agree", "objection" or "abstain" intentions in the power of attorney and tick "√". If the client does not give specific instructions in this power of attorney, the trustee has the right to vote according to his own wishes.