688520: Sinocelltech Group Limited(688520) notice on convening the first extraordinary general meeting of shareholders in 2022

Securities code: 688520 securities abbreviation: Sinocelltech Group Limited(688520) Announcement No.: 2022-005 Sinocelltech Group Limited(688520)

Notice on convening the first extraordinary general meeting of shareholders in 2022

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: February 25, 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

The first extraordinary general meeting of shareholders in 2022 (II) convener of the 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 the on-site meeting

Date and time: 14:30, February 25, 2022

Venue: unit 1606, 16th floor, main building, Beijing Broadcasting building, No.14 Jianwai street, Chaoyang District, Beijing (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 February 25, 2022

To February 25, 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) involving public solicitation of shareholders’ voting rights

Not involved. 2、 Matters considered at the meeting

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

Type of voting shareholder

Serial number proposal name A-share shareholder

Non cumulative voting motion

1. About extending the company’s issuance of A-Shares to specific objects √

Proposal on the validity period of the resolution

2. On requesting the general meeting of shareholders to extend the authorization of the board of directors and its authorization √

The authorized person has full authority to handle the company’s issuance of A-Shares to specific objects

Proposal on the validity period of specific matters

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 23rd Meeting of the first board of directors of the company. For details, please refer to the website of Shanghai Stock Exchange (www.sse. Com. CN.) on February 10, 2022 Relevant announcements of disclosure. 2. Special resolution proposal: 1. 23. Proposal on separate vote counting for small and medium-sized investors: 1. 24. Proposal involving avoidance of voting by related shareholders: 1. 2

Names of related shareholders who should avoid voting: Lhasa Erick Investment Consulting Co., Ltd., Lhasa lianghaoyuan Investment Consulting Co., Ltd. and Xie Liangzhi 5. Proposals involving the voting of preferred shareholders: No. III. voting precautions for the general meeting of shareholders (I) shareholders of the company exercise their voting rights through the online voting system of the general meeting of shareholders of Shanghai Stock Exchange, You can either log in to the voting platform of the trading system (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) 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 688520 Sinocelltech Group Limited(688520) 2022 / 2 / 17

(II) directors, supervisors and senior managers of the company. (III) lawyers employed by the company. (IV) other personnel. 5、 Meeting registration method

(I) registration procedures:

Shareholders or their agents who intend to attend the shareholders’ meeting on site shall register with the following documents:

1. If the legal representative / executive partner / executive partner of an enterprise 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 / passport, the identity certificate of the legal representative / executive partner / executive partner’s representative, the copy of the enterprise’s business license (stamped 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 with the agent’s ID card / passport, power of attorney (see the annex for the format of power of attorney), copy of 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 his / her ID card / passport and securities account card; If a natural person shareholder entrusts an agent to attend, it shall register with the agent’s ID card / passport, power of attorney (see the annex for the format of power of attorney), the client’s securities account card and the copy of the client’s ID card.

3. A copy of the above registration materials shall be provided, the copy of the individual registration materials shall be signed by the individual, and the copy of the certificate of the legal representative shall be stamped with the official seal of the company.

4. Shareholders or agents of the company can register directly at the company or by letter; In order to cooperate with the relevant arrangements for the prevention and control of pneumonia in New Coronavirus, the company encourages shareholders or agents to register through letters. The letter must indicate the shareholder’s name / name, shareholder account, contact address, postal code and contact telephone number, and attach copies of the supporting materials listed in paragraphs 1 and 2 above. The original must be brought when attending the meeting. The letter should be marked with the words “general meeting of shareholders” and must be delivered to the registration place before 16:00 on February 22, 2022.

(II) registration time: February 22, 2022 (14:00-16:00).

(III) place of registration: guard room of courtyard, No. 31, Kechuang 7th Street, Beijing Economic and Technological Development Zone, Beijing

(IV) registration method: on site registration and letter registration can be adopted

(V) precautions: shareholders are requested to bring the above certificates when attending the on-site meeting. The company does not accept telephone registration. 6、 Other matters

(1) to coordinate the current arrangements for preventing and controlling New Coronavirus’s pneumonia, the company encourages shareholders, shareholder agents and other attendees to participate in the shareholders’ meeting by way of online voting. Shareholders, shareholders’ agents and other attendees who need to attend the on-site meeting shall take effective protective measures and cooperate with the on-site requirements to accept identity verification, information registration, temperature detection, showing health code and providing recent travel records. If relevant government departments and other authorities issue new epidemic prevention regulations on the day of the meeting, the company has the right to require participants to cooperate in the implementation. Shareholders who do not meet the requirements of the epidemic prevention and control policy will not be able to enter the meeting site, but can still vote through online voting or entrusted voting.

(II) the shareholders or agents attending the meeting shall bear their own transportation and accommodation expenses.

(III) shareholders attending the meeting are requested to arrive at the meeting site 30 minutes in advance to sign in and register, and cooperate with the meeting site to accept body temperature detection, show health code and provide recent travel records and other related epidemic prevention work.

(IV) meeting contact information

Contact: Tang Liming, Zeng Yan

Tel: 010-58628328

Address: courtyard 31, Kechuang 7th Street, Beijing Economic and Technological Development Zone, Beijing

It is hereby announced.

Sinocelltech Group Limited(688520) board of directors February 10, 2022 Annex 1: power of attorney

Annex 1: power of attorney

Power of attorney

Sinocelltech Group Limited(688520)

I hereby entrust Mr. (Ms.) to attend the first extraordinary general meeting of your company in 2022 held on February 25, 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. On extending the time limit for the company to issue A-Shares to specific objects

Proposal on the validity period of the resolution

2. On requesting the general meeting of shareholders to extend the authorization of the board of directors and its authorization

The authorized person has full authority to handle the company’s issuance of A-Shares to specific objects

Proposal on the validity period of specific matters

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 / yyyy remarks:

The trustor shall choose one of the “agree”, “oppose” or “abstain” intentions in the power of attorney and tick “√”. If the trustor fails to give specific instructions in the power of attorney, the trustee has the right to vote according to its own wishes.

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