Resolutions Passed at the 2023 Annual General Meeting,the First A Shareholders Class Meeting for 2024 andthe First H Shareholders Class Meeting for 2024

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.Sinopec Shanghai Petrochemical Company Limited (A joint stock limited company incorporated in the People’s Republic of China) (Stock Code: 00338) Resolutions Passed at the 2023 Annual General Meeting the First A Shareholders Class Meeting for 2024 and the First H Shareholders Class Meeting for 2024 The board of directors (the “Board”) of Sinopec Shanghai Petrochemical Company Limited (the “Company”) and all its directors guarantee that this announcement does not contain any false information misleading statement or material omission and severally and jointly accept responsibility for the authenticity accuracy and completeness of the contents of this announcement.Important Message: * Objection made to the resolutions proposed at the 2023 annual general meeting (the “AGM”) the first A shareholders class meeting for 2024 (the “A Shareholders ClassMeeting”) and the first H shareholders class meeting for 2024 (the “H Shareholders ClassMeeting” together with the AGM and A Shareholders Class Meeting as the “Meeting(s)”): Nil I. THE CONVENING AND ATTENDANCE OF THE MEETING(S) (1) Date of the Meeting(s): 6 June 2024 (2) Venue of the Meeting(s): North Building Jinshan Hotel No.1 Jinyi East Road Jinshan District Shanghai the People’s Republic of China (3) Information of ordinary shareholders and preferred shareholders with restored voting rights who attended the Meeting(s) and their shareholdings: As at the record date (i.e. 3 June 2024) shareholders of the Company who were entitled to attend the Meeting(s) held an aggregate of 10677865500 shares with voting rights consisting of 7328813500 A shares and 3349052000 H shares (the Company has repurchased a total of 121420000 H shares but not yet cancelled such H shares do not - 1 -carry voting rights and shall not be counted into the total number of shares carrying voting rights attending the Meeting(s).) No shareholder of the Company who was entitled to attend the Meeting(s) was required to abstain from voting in favor of any of the resolutions at the Meeting(s) as set out in Rule 13.40 of the Rules Governing the Listingof Securities on The Stock Exchange of Hong Kong Limited (the “Hong Kong ListingRules”) nor was required to abstain from voting on any of the resolutions at the Meeting(s) under the Hong Kong Listing Rules. No shareholder indicated in the Company’s circular dated 26 April 2024 and the supplemental notice dated 23 May 2024 that he or she intended to abstain from voting on any resolution at the Meeting(s).Information of ordinary shareholders who attended the Meeting(s) and their shareholdings: 1. Total number of shareholders and proxies attending the Meeting(s) 80 including: A shares shareholders 78 Overseas listed foreign shares shareholders (H shares) 2 2. Total number of shares with voting rights held by the shareholders attending the Meeting(s) (shares) 5854420207 including: Total number of shares held by A shares shareholders (shares) 5504226622 Total number of shares held by overseas listed foreign shares shareholders (H shares) 350193585 3. Percentage of shares with voting rights held by the shareholders attending the Meeting(s) to total shares of the Company with voting rights (%) 54.8276 including: Percentage of shares held by A shares shareholders to the total number of shares (%) 51.5480 Percentage of shares held by overseas listed foreign shares shareholders to the total number of shares (%) 3.2796 Information of ordinary shareholders who attended the A Shareholders Class Meeting and their shareholdings: 1. Total number of A shares shareholders and proxies attending the A Shareholders Class Meeting 78 2. Total number of shares with voting rights held by A shares shareholders attending the A Shareholders Class Meeting (shares) 5504226622 3. Percentage of shares with voting rights held by A shares shareholders attending the A Shareholders Class Meeting to total A shares of the Company with voting rights (%) 75.1039 - 2 -Information of ordinary shareholders who attended the H Shareholders Class Meeting and their shareholdings: 1. Total number of H shares shareholders and proxies attending the H Shareholders Class Meeting 2 2. Total number of shares with voting rights held by H shares shareholders attending the H Shareholders Class Meeting (shares) 350192052 3. Percentage of shares with voting rights held by H shares shareholders attending the H Shareholders Class Meeting to total H shares of the Company with voting rights (%) 10.4565 (4) The Meeting(s) were convened by the Board of the Company and Mr. Guan Zemin Vice Chairman of the Company presided over the Meeting(s). The convening and holding of and voting at the Meeting(s) complied with the relevant regulations of Company Law of the People’s Republic of China and the Articles of Association of the Company. (5) Attendance of the directors supervisors and the secretary to the Board of the Company 1. The Company has 10 directors 7 of whom attended the Meeting(s); Mr. Xie Zhenglin non-executive director Ms. Zhou Ying and Mr. Huang Jiangdong independent non-executive directors were absent from the Meeting(s) due to business engagements; 2. The Company has 6 supervisors 4 of whom attended the Meeting(s); Mr. Zhang Feng and Mr. Zhang Xiaofeng were absent from the Meeting(s) due to business engagements; 3. Mr. Guo Xiaojun proposed non-independent director to the Board attended the Meeting(s); Mr. Li Shantao and Mr. Zhou Guoming Vice Presidents attended the Meeting(s); 4. Mr. Liu Gang the secretary to the Board attended the Meeting(s). II. VOTING RESULTS OF RESOLUTIONS (1) The AGM Resolutions by way of non-cumulative voting 1. Resolution: THAT the 2023 Work Report of the board of directors of the Company be considered and approved Result of consideration: passed - 3 -Voting result: For Against Type of shareholders Number of Percentage Number of Percentage votes (%) votes (%) A shares 5501516477 99.9559 2429645 0.0441 H shares 344148994 98.2739 6044591 1.7261 Total number of ordinary shares: 5845665471 99.8552 8474236 0.1448 2. Resolution: THAT the 2023 Work Report of the supervisory committee of the Company be considered and approved Result of consideration: passed Voting result: For Against Type of shareholders Number of Percentage Number of Percentage votes (%) votes (%) A shares 5501516477 99.9559 2429645 0.0441 H shares 344148994 98.2739 6044591 1.7261 Total number of ordinary shares: 5845665471 99.8552 8474236 0.1448 3. Resolution: THAT the 2023 Audited Financial Statements of the Company be considered and approved Result of consideration: passed Voting result: For Against Type of shareholders Number of Percentage Number of Percentage votes (%) votes (%) A shares 5501516477 99.9559 2429645 0.0441 H shares 344148994 98.2739 6044591 1.7261 Total number of ordinary shares: 5845665471 99.8552 8474236 0.1448 - 4 -4. Resolution: THAT the 2023 Profit Distribution Plan of the Company be considered and approved Result of consideration: passed Voting result: For Against Type of shareholders Number of Percentage Number of Percentage votes (%) votes (%) A shares 5501706877 99.9593 2239245 0.0407 H shares 350191585 99.9994 2000 0.0006 Total number of ordinary shares: 5851898462 99.9617 2241245 0.0383 5. Resolution: THAT the 2024 Financial Budget Report of the Company be considered and approved Result of consideration: passed Voting result: For Against Type of shareholders Number of Percentage Number of Percentage votes (%) votes (%) A shares 5484249859 99.6421 19696263 0.3579 H shares 100929506 28.8211 249264079 71.1789 Total number of ordinary shares: 5585179365 95.4056 268960342 4.5944 6. Resolution: THAT the re-appointment of the domestic and international auditors for the year 2024 and the authorization to the board of directors to fix their remuneration be considered and approved; Result of consideration: passed - 5 -Voting result: For Against Type of shareholders Number of Percentage Number of Percentage votes (%) votes (%) A shares 5501856877 99.9620 2089245 0.0380 H shares 350191585 99.9994 2000 0.0006 Total number of ordinary shares: 5852048462 99.9643 2091245 0.0357 7. Resolution: THAT the authorization to the board of directors to decide on the registration and issuance of medium-term notes and ultra short-term debt financing bonds be considered and approved; Result of consideration: passed Voting result: For Against Type of shareholders Number of Percentage Number of Percentage votes (%) votes (%) A shares 5483362359 99.6260 20583763 0.3740 H shares 82062177 23.4334 268131408 76.5666 Total number of ordinary shares: 5565424536 95.0682 288715171 4.9318 8. Resolution: THAT the resolution in relation to the amendments to the articles of association and its appendix be considered and approved; Result of consideration: passed Voting result: For Against Type of shareholders Number of Percentage Number of Percentage votes (%) votes (%) A shares 5501856877 99.9620 2089245 0.0380 H shares 349819585 99.8932 374000 0.1068 Total number of ordinary shares: 5851676462 99.9579 2463245 0.0421 - 6 -9. Resolution: THAT the proposal to the shareholders at the general meeting to authorize the board of directors to repurchase the domestic shares and/or overseas- listed foreign shares of the Company be considered and approved Result of consideration: passed Voting result: For Against Type of shareholders Number of Percentage Number of Percentage votes (%) votes (%) A shares 5502387377 99.9666 1836245 0.0334 H shares 350191585 99.9994 2000 0.0006 Total number of ordinary shares: 5852578962 99.9686 1838245 0.0314 10. Resolution: THAT the election of Guo Xiaojun as the non-independent director of the Eleventh Session of the board of directors of the Company Result of consideration: passed Voting result: For Against Type of shareholders Number of Percentage Number of Percentage votes (%) votes (%) A shares 5501580877 99.9570 2365245 0.0430 H shares 319663942 91.2821 30529643 8.7179 Total number of ordinary shares: 5821244819 99.4381 32894888 0.5619 (2) The A Shareholders Class Meeting Resolution by way of non-cumulative voting 1. Resolution: THAT the proposal to the shareholders at the general meeting to authorize the board of directors to repurchase the domestic shares and/or overseas listed foreign shares of the Company be considered and approved Result of consideration: passed - 7 -Voting result: For Against Type of shareholders Number of Percentage Number of Percentage votes (%) votes (%) A shares 5502387377 99.9666 1836245 0.0334 (3) The H Shareholders Class Meeting Resolutions by way of non-cumulative voting 1. Resolution: THAT the proposal to the shareholders at the general meeting to authorize the board of directors to repurchase the domestic shares and/or overseas listed foreign shares of the Company be considered and approved Result of consideration: passed Voting result: For Against Type of shareholders Number of Percentage Number of Percentage votes (%) votes (%) H shares 350192052 100.0000 0 0.0000 (4) Voting on material issues by A shares shareholders holding individually or jointly less than 5% of the Company’s total number of issued share Resolutions by way of non-cumulative voting For Against Resolution Resolution no. Number of Percentage Number of Percentage votes (%) votes (%) 4 THAT the 2023 Profit Distribution 42251877 94.9670 2239245 5.0330 Plan of the Company be considered and approved 6 THAT the re-appointment of the 42401877 95.3041 2089245 4.6959 domestic and international auditors for the year 2024 and the authorization to the board of directors to fix their remuneration be considered and approved - 8 -For Against Resolution Resolution no. Number of Percentage Number of Percentage votes (%) votes (%) 9 THAT the proposal to the shareholders 42932377 95.8984 1836245 4.1016 at the general meeting to authorize the board of directors to repurchase the domestic shares and/or overseas listed foreign shares of the Company be considered and approved 10 THAT the election of Guo Xiaojun as 42125877 94.6838 2365245 5.3162 the non-independent director of the Eleventh Session of the board of directors of the Company (5) Explanation in relation to the poll results of the resolutions Resolutions No.1 to No. 6 and No.10 are ordinary resolutions and were passed by votes representing more than half of the total number of votes held by the attending shareholders and proxies having valid voting rights.Resolutions No.7 to No.9 are special resolutions and were passed by votes representing more than two-thirds of the total number of votes held by the attending shareholders and proxies having valid voting rights.The Company had appointed Hong Kong Securities Registration Co. Ltd as the scrutineer of the Meeting(s) to monitor the vote-taking procedures. The chairman of the Meeting(s) has complied with the voting instructions stipulated by HKSCC Nominees Limited.III. APPOINTMENT OF DIRECTOR At the AGM Mr. Guo Xiaojun was elected as a non-independent director of the Eleventh Session of the Board of the Company. The Eighth Meeting of the Eleventh Session of the Board of the Company was convened on 6 June 2024 at which Mr. Guo Xiaojun was considered and approved as an executive director the Chairman of the Board the chairman of the Strategy and ESG Committee and a member of the Nomination Committee. Mr. Guo Xiaojun is also the authorized representative of the Company under Rule 3.05 of the Hong Kong Listing Rules. His appointment was effective on the date of the resolution of the Meeting(s). For the biographical details of Mr. Guo Xiaojun please refer to the circular to the holders of the Company’s H shares dated 26 April 2024.- 9 -IV. LAWYER’S CERTIFICATION (1) Legal advisor: Beijing Haiwen & Partners Lawyers: Mr. Gao Wei and Mr. Yang Xiaolong (2) Lawyer’s certification: As attested by and stated in the legal opinion issued by Mr. Gao Wei and Mr. Yang Xiaolong of Beijing Haiwen & Partners the Company’s legal advisors as to the PRC law“the procedures for the convening and holding of the Meeting(s) the qualification of theconvener the qualifications of shareholders or proxies who attended the Meeting(s) and the voting procedures at the Meeting(s) were in compliance with the provisions of the relevant laws and the Articles of Association of the Company. As a result the resolutionsof the Meeting(s) are valid”.For and on behalf of the Board Sinopec Shanghai Petrochemical Company Limited Liu Gang Joint Company Secretary Shanghai the PRC 6 June 2024 As at the date of this announcement the executive directors of the Company are Guo Xiaojun Guan Zemin Du Jun and Huang Xiangyu; the non-executive directors of the Company are Xie Zhenglin and Qin Zhaohui; and the independent non-executive directors of the Company are Tang Song Chen Haifeng Yang Jun Zhou Ying and Huang Jiangdong.