Sinopec Oilfield Service Corporation(600871) : Notice on convening the 2021 annual general meeting, the first A-share general meeting in 2022 and the first H-share general meeting in 2022

Securities code: Sinopec Oilfield Service Corporation(600871) securities abbreviation: Sinopec Oilfield Service Corporation(600871) Announcement No.: 2022015

Sinopec Oilfield Service Corporation(600871)

Notice on convening the annual general meeting of shareholders in 2021, the first A-share general meeting in 2022 and the first H-share general meeting 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 this announcement, and bear individual and joint liabilities for the authenticity, accuracy and completeness of its contents.

Important content tips:

Date of shareholders’ meeting: May 26, 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 of general meeting and the annual general meeting of shareholders in 2021 (hereinafter referred to as the “annual general meeting”), the first general meeting of shareholders of class A shares in 2022 (hereinafter referred to as the “general meeting of shareholders of class A shares”) and the first general meeting of shareholders of class H shares in 2022 (hereinafter referred to as the “general meeting of shareholders of class H shares”, together with the annual general meeting of shareholders and the general meeting of shareholders of class A shares, as the “general meeting of shareholders”). (2) Convener of the general meeting of shareholders: Sinopec Oilfield Service Corporation(600871) (hereinafter referred to as “the company” or “the company”) (III) voting method: the voting method adopted at the general meeting of shareholders is a combination of on-site voting and online voting

(4) Date, time and place of site meeting

Date and time of the annual meeting of shareholders: 9:00 on May 26, 2022

Date and time of A-share shareholders’ meeting: 10:00 on May 26, 2022

Date and time of H-share shareholders’ meeting: 10:15 on May 26, 2022

Venue: Beijing Victory Hotel (V), No. 3, North Beach, Deshengmenwai, Chaoyang District, Beijing. 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 May 26, 2022

To May 26, 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. (6) Margin trading, refinancing, agreed repurchase business accounts and voting procedures for investors of Shanghai Stock connect

Accounts related to margin trading, refinancing business, agreed repurchase business and the voting of investors in Shanghai Stock connect shall be implemented in accordance with the relevant provisions of the guidelines for self discipline supervision of listed companies of Shanghai Stock Exchange No. 1 – standardized operation. (7) No matter involving the public solicitation of shareholders’ voting rights. Matters to be considered at the meeting

(I) types of proposals and voting shareholders deliberated at the annual meeting of shareholders

Type of voting shareholder

Serial number proposal name A-share shareholder and H-share shareholder

Non cumulative voting motion

1. Review and approve the work report of the board of directors in 2021 √

2. Review and approve the work report of the board of supervisors in 2021 √

3. Review and approve the audited financial report of the company in 2021 √

And audit report

4. Review and approve the company’s profit distribution plan for 2021 √

5. Review and approve the renewal of Lixin Certified Public Accountants (special ordinary √

(partnership) is the domestic audit institution and internal auditor of the company in 2022

The Department controls the audit institution and renews the appointment of Hong Kong Lixin Dehao certified public accountants

Office Co., Ltd. is the company’s overseas auditor in 2022

Constitutional motion

6. Review and approve the √ agreement between the company and the national oil and gas pipeline network

Maximum limit of daily connected transactions of Group Co., Ltd. in 2022

Motion

7. Review and approve the election of Mr. Wang Jun as the 10th √

Proposal on the board of supervisors with non employee representatives as supervisors

8. Review and approve √ for wholly-owned subsidiaries and joint ventures

Proposal for guarantee

9. Review and approve the proposal to the general meeting of shareholders to authorize the board of directors to return √

Proposal on purchasing domestic shares and / or overseas listed foreign shares of the company

(II) types of shareholders deliberating proposals and voting at the A-share general meeting

Serial number proposal name voting shareholder type

A-share shareholders

1. Review and approve the proposal to the general meeting of shareholders to authorize the board of directors to return √

Proposal on purchasing domestic shares and / or overseas listed foreign shares of the company

(III) types of shareholders deliberating proposals and voting at this H-share general meeting

Serial number proposal name voting shareholder type

H-share shareholders

1. Review and approve the proposal to the general meeting of shareholders to authorize the board of directors to return √

Proposal on purchasing domestic shares and / or overseas listed foreign shares of the company

1. Time and media of disclosure of each proposal

The relevant contents of the above 1, 2, 3 and 4 proposals have been disclosed on the website of Shanghai Stock Exchange on March 30, 2022 http://www.sse.com.cn. In the 2021 annual report of the company; The content of the proposal has been published in the securities times and Shanghai Stock Exchange on August 30, 2029 and the relevant website of Shanghai Securities Times http://www.sse.com.cn. The announcement on renewing the appointment of accounting firms, the announcement on the prediction of daily connected transactions, the announcement on the election of supervisors of the company, the announcement on providing guarantees for wholly-owned subsidiaries and joint ventures, and the announcement on the resolution of the eighth meeting of the 10th board of directors.

2. Special resolution proposal: 8. 93. Proposal on separate vote counting for small and medium-sized investors: 4, 5, 6, 8, 94. Proposal involving avoidance of voting by related shareholders: none

Name of related shareholders who should avoid voting: none 5. Proposals involving preferred shareholders’ participation in voting: None

3、 Precautions for voting at the general meeting of shareholders

(1) If the A-share 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 either log in to the voting platform of the trading system (through the trading terminal of the designated trading securities company) 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.

(2) A-share shareholders exercise their voting rights through the online voting system of the general meeting of shareholders of Shanghai Stock Exchange. If they have multiple shareholder accounts, they can use any shareholder account holding the company’s shares to participate in online voting. After voting, it shall be deemed that all ordinary shares of the same class or preferred shares of the same variety under their shareholder accounts have voted for the same opinion respectively.

(3) 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.

(4) A-share shareholders can submit all proposals only after voting.

4、 Meeting attendees

(1) All A-share shareholders registered in the domestic register of shareholders of the company kept by China Securities Depository and Clearing Corporation Limited Shanghai branch and H-share shareholders in the overseas register of shareholders of the company kept by Hong Kong Securities Depository and Clearing Co., Ltd. at the end of business hours on Wednesday, April 27, 2022 have the right to attend the shareholders’ meeting. A shareholder may entrust a proxy in writing to attend the meeting and vote. The agent need not be a shareholder of the company. Please refer to the notice of H-share shareholders’ meeting issued by the company for the details of H-share shareholders’ participation in this shareholders’ meeting.

Stock category Stock Code Stock abbreviation equity registration date

A shares Sinopec Oilfield Service Corporation(600871) Sinopec Oilfield Service Corporation(600871) 2022 / 4 / 27

(2) Directors, supervisors and senior managers of the company. (3) Perennial legal lawyer employed by the company. 5、 Methods of meeting registration (I) when shareholders or their agents attend the on-site meeting, they shall show their identity certificates. If the shareholder attending the on-site meeting is a legal person, its legal representative or the person authorized by the board of directors or other decision-making body shall produce a copy of the resolution of the board of directors or other decision-making body of the legal person appointing the person to attend the meeting before attending the on-site meeting. (II) shareholders who wish to attend the on-site meeting shall send the receipt of the meeting to the company on or before Friday, May 6, 2022 (address: the office of the board of directors of the company, No. 9, jishikou Road, Chaoyang District, Beijing, zip code: 100728, or fax number: 01059965997). Eligible shareholders who fail to sign and return the receipt can still attend the shareholders’ meeting. (III) the shareholder may send the above receipt to the company in person or by mail or fax. 6、 Other matters (I) it is expected that the general meeting of shareholders will not exceed one working day. The shareholders attending the meeting shall pay their own round-trip and accommodation expenses. (II) the address of the company’s A-share registration office and China Securities Depository and Clearing Co., Ltd. Shanghai branch is No. 188, Yanggao South Road, China (Shanghai) pilot free trade zone. (III) the office address of the company: No. 9, jishikou Road, Chaoyang District, Beijing, people’s Republic of China zip code: 100728 Tel.: 86-1059965998 Fax No.: 86-1059965997 this is hereby announced.

Sinopec Oilfield Service Corporation(600871) board of directors April 11, 2022 Annex 1: receipt of 2021 annual general meeting of shareholders and the first class a shareholders’ meeting in 2022

Annex 2: power of attorney for 2021 annual general meeting Annex 3: filing document of power of attorney for 2022 first A-share general meeting Sinopec Oilfield Service Corporation(600871) the resolution of the 8th meeting of the 10th board of directors

Sinopec Oilfield Service Corporation(600871)

(a joint stock limited company incorporated in the people’s Republic of China)

Receipt of 2021 annual general meeting and 2022 first class a shareholders’ meeting

To: Sinopec Oilfield Service Corporation(600871) (“your company”)

I / we, the registered holder of A-Shares with a par value of RMB 1.00 per share in the capital stock of your company, the address of note I, the address of which is, hereby inform your company that, I / we intend to attend the 2021 annual general meeting of shareholders and the first class a shareholders’ meeting of 2022 held by your company on Thursday, May 26, 2022 at Beijing Shengli Hotel, No. 3, North Beach, Deshengmenwai, Chaoyang District, Beijing.

Signed by

Date: 2022

note appended:

1、 Please fill in the full name and address of the shareholders registered in the register of shareholders in block letters.

2、 Please fill in the number of shares registered in your name. If not filled in in writing, this power of attorney will be deemed to be related to all shares registered in your name in the company.

3、 Please fill in and sign this receipt and send it to the company on or before May 6, 2022. The office address of the company is No. 9, jishikou Road, Chaoyang District, Beijing, people’s Republic of China. This receipt can be returned to our company in person or by mail, telegram or fax. The fax number is 86-1059965997 and the postal code is 100728. For the delivery of relevant documents of H-share shareholders, please refer to the notice of H-share shareholders’ meeting issued by the company.

Annex 2: power of attorney for 2021 annual general meeting

Power of attorney for 2021 annual general meeting

Sinopec Oilfield Service Corporation(600871) :

I hereby entrust Mr. (Ms.) to attend the meeting held on May 26, 2022 on behalf of my unit (or myself)

- Advertisment -