Chengdu Easton Bio Pharmaceuticals Co.Ltd(688513) : Chengdu Easton Bio Pharmaceuticals Co.Ltd(688513) : Notice on convening the 2021 annual general meeting of shareholders

Securities code: Chengdu Easton Bio Pharmaceuticals Co.Ltd(688513) securities abbreviation: Chengdu Easton Bio Pharmaceuticals Co.Ltd(688513) Announcement No.: 2022014 Chengdu Easton Bio Pharmaceuticals Co.Ltd(688513)

Notice on convening the 2021 annual general meeting of shareholders

The board of directors and all directors of the company guarantee that there are no false records, misleading statements or major omissions in the contents of the announcement, and bear legal responsibility for the authenticity, accuracy and integrity of the contents according to law.

Important content tips:

Date of shareholders' meeting: April 18, 2022

The online voting system adopted for the general meeting of shareholders: the online voting system of the general meeting of shareholders of Shanghai Stock Exchange

1、 Basic information of the meeting (I) type and session of the general meeting of shareholders

2021 annual general meeting of shareholders (Ⅱ) convener of general meeting of shareholders: Board of directors (Ⅲ) voting method: the voting method adopted in this general meeting of shareholders is a combination of on-site voting and online voting (Ⅳ) date, time and place of on-site meeting

Date and time: 14:00 on April 18, 2022

Venue: Ankang Road, Shuangliu District, Chengdu, Sichuan Province, Chengdu Easton Bio Pharmaceuticals Co.Ltd(688513) (biological City Park) (V) online voting system, start and end date and voting time.

Online voting system: online voting system for shareholders' meeting of Shanghai Stock Exchange

Starting and ending time of online voting: from April 18, 2022

To April 18, 2022

The online voting system of Shanghai Stock Exchange is adopted. The voting time through the trading system voting platform is the trading time period on the day of the general meeting of shareholders, i.e. 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 of the general meeting of shareholders. (VI) voting procedures for margin trading, refinancing, agreed repurchase business accounts and investors of Shanghai Stock connect

Accounts related to margin trading, refinancing business, agreed repurchase business and the voting of Shanghai Stock connect investors shall be implemented in accordance with the relevant provisions of the guidelines for self discipline supervision of companies listed on the science and Innovation Board of Shanghai Stock Exchange No. 1 - standardized operation. (VII) no matter involving the public solicitation of shareholders' voting rights. Matters to be considered at the meeting

The types of proposals and voting shareholders deliberated at the general meeting of shareholders

Serial number proposal name voting shareholder type

A-share shareholders

Non cumulative voting motion

1 proposal on the work report of the board of directors in 2021 √

2 proposal on the work report of the board of supervisors in 2021 √

3 proposal on the company's 2021 annual financial statement √

4 proposal on the 2022 annual financial budget report of the company √

5 proposal on the company's 2021 annual report and its summary √

6 proposal on the company's profit distribution plan for 2021 √

7 proposal on Amending the articles of association √

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

The proposal submitted to the general meeting of shareholders for deliberation has been deliberated and adopted at the second meeting of the third board of directors and the second meeting of the third board of supervisors. The relevant announcement was posted on the website of Shanghai Stock Exchange (www.sse. Com. CN.) on March 29, 2022 And China Securities Journal, Shanghai Securities News, securities times and Securities Daily. Before the 2021 annual general meeting of shareholders, the company will publish the information on the website of Shanghai Stock Exchange (www.sse. Com. CN.) Publish the materials of the 2021 annual general meeting of shareholders. 2. Special resolution: motion 7

3. Proposal on separate vote counting for small and medium-sized investors: proposal 64. Proposal involving avoidance of voting by related shareholders: None

Names of affiliated shareholders who should avoid voting: none 5. Proposals involving preferred shareholders' participation in voting: none 3. Voting precautions for the general meeting of shareholders (I) if the shareholders of the company exercise their voting rights through the online voting system of the general meeting of shareholders of Shanghai Stock Exchange, they can log in to the voting platform of the trading system (through the trading terminal of the securities company designated for trading) to vote, You can also log in to the Internet voting platform (website: vote. Sseinfo. Com.) Vote. For the first time to log in to the Internet voting platform to vote, investors need to complete shareholder identity authentication. Please refer to the instructions on the website of the Internet voting platform for specific operations. (II) if the same voting right is voted repeatedly through on-site, online voting platform of the exchange or other means, the first voting result shall prevail. (III) shareholders can submit all proposals only after voting. 4、 Participants of the meeting (I) at the closing of the afternoon of the equity registration day, the shareholders of the company registered in China depository and Clearing Co., Ltd. Shanghai branch have the right to attend the general meeting of shareholders (see the table below for details), and can entrust agents to attend the meeting and vote in writing. The agent need not be a shareholder of the company.

Stock category Stock Code Stock abbreviation equity registration date

A shares Chengdu Easton Bio Pharmaceuticals Co.Ltd(688513) Chengdu Easton Bio Pharmaceuticals Co.Ltd(688513) 2022 / 4 / 12

(II) directors, supervisors and senior managers of the company. (III) lawyers employed by the company. (IV) other personnel v. meeting registration method

1. If the legal representative / executive partner of the legal person shareholder appoints a representative to attend the shareholders' meeting in person, he / she shall go through the registration formalities on the strength of his / her ID card, the identity certificate of the legal representative / executive partner, the copy of the enterprise business license (with official seal) and the securities account card; If an enterprise shareholder entrusts an agent to attend the shareholders' meeting, it shall go through the registration formalities on the strength of the agent's ID card, power of attorney (see Annex 1 for details), copy of the enterprise business license (with official seal) and securities account card.

2. If a natural person shareholder attends the shareholders' meeting in person, he / she shall register with the original of his / her ID card and securities account card; If the entrusted agent attends the meeting, he / she shall present the original securities account card of the principal and the copy of his / her ID card, the original power of attorney (see Annex 1 for details) and the original ID card of the trustee to go through the registration formalities.

3. Non local shareholders can send e-mail within the specified time( [email protected]. )The registration of the meeting shall be handled by letter. The e-mail and letter shall be subject to the time of arrival at the company. The e-mail and letter shall indicate the shareholder's name, shareholder's account, contact address, postal code and contact telephone number, and the copies of the supporting materials listed in paragraphs 1 and 2 above shall be attached. The original shall be brought when attending the meeting and must be delivered to the registration place before 16:00 p.m. on April 14, 2022, The company does not accept telephone registration.

Please send the letter to the Securities Affairs Department of Chengdu Easton Bio Pharmaceuticals Co.Ltd(688513) (biological City Park), Ankang Road, Shuangliu District, Chengdu, post code: 610219 (please indicate " Chengdu Easton Bio Pharmaceuticals Co.Ltd(688513) shareholders' meeting" on the letter).

4. The above power of attorney shall be submitted to the office of the Securities Affairs Department of the company at least 2 working days before the shareholders' meeting. If the power of attorney is signed by another person authorized by the principal, the power of attorney or other authorization documents authorized to be signed shall be notarized. The notarized power of attorney or other authorization documents shall be submitted to the office of the Securities Affairs Department of the company at the same time as the power of attorney.

(II) on site registration time: 9:00-11:00 a.m. and 14:00-16:00 p.m. on April 15, 2022; (III) on site registration place: Securities Affairs Department, 5th floor, administration building, Chengdu Easton Bio Pharmaceuticals Co.Ltd(688513) (biological City Park), Ankang Road, Shuangliu District, Chengdu. 6、 Other matters (I) the attendants of this on-site meeting shall bear their own accommodation and transportation expenses. (II) shareholders participating in the meeting shall bring relevant certificates to the meeting site half an hour in advance to sign in. (III) meeting contact person and contact information

Contact: Li Shuyun

Tel: 02886106668

It is hereby announced.

Chengdu Easton Bio Pharmaceuticals Co.Ltd(688513) board of directors March 29, 2022 Annex 1: power of attorney

Annex 1: power of attorney

Power of attorney

Chengdu Easton Bio Pharmaceuticals Co.Ltd(688513) :

I hereby entrust Mr. (Ms.) to attend the 2021 annual general meeting of shareholders of your company held on April 18, 2022 on behalf of my unit (or myself) and exercise voting rights on behalf of me. Number of ordinary shares held by the trustor: number of preferred shares held by the trustor: account number of the trustor's shareholder:

No. name of non cumulative voting proposal agree against abstain

1 proposal on the work report of the board of directors in 2021 2 proposal on the work report of the board of supervisors in 2021

3 proposal on the company's 2021 annual financial statement report

4 proposal on the 2022 annual financial budget report of the company

5. Proposal on the 2021 annual report of the company and its summary

6 proposal on the company's profit distribution plan in 2021

7. Proposal on Amending the articles of Association

Signature (seal) of the trustor: signature of the trustee:

The ID number of the client: the ID number of the trustee:

Date of entrustment: mm / DD / yy

remarks:

The trustee shall have the right to vote according to one of "consent" and "waiver" in the power of attorney.

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