Final Dividend for the year ended 31 December 2023

EF001 Disclaimer 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 arisen from or in reliance upon the whole or any part of the contents of this announcement.Cash Dividend Announcement for Equity Issuer Issuer name China Petroleum & Chemical Corporation Stock code 00386 Multi-counter stock code and currency Not applicable Other related stock code(s) and Not applicable name(s) Title of announcement Final Dividend for the year ended 31 December 2023 Announcement date 22 March 2024 Status Update to previous announcement Reason for the update / change Update information relating to HKD to CNY exchange rate and dividend per share in Hong Kong dollars etc.Information relating to the dividend Dividend type Final Dividend nature Ordinary For the financial year end 31 December 2023 Reporting period end for the dividend declared 31 December 2023 Dividend declared RMB 0.2 per share Date of shareholders' approval 28 June 2024 Information relating to Hong Kong share register Default currency and amount in which the dividend will be paid HKD 0.2194 per share Exchange rate RMB 1 : HKD 1.097093 Ex-dividend date 08 July 2024 Latest time to lodge transfer documents for registration with share registrar for 09 July 2024 16:30 determining entitlement to the dividend Book close period From 10 July 2024 to 15 July 2024 Record date 15 July 2024 Payment date 26 July 2024 Hong Kong Registrars Limited R1712-1716 17th Floor Hopewell Centre Share registrar and its address 183 Queen's Road East Wan Chai Hong Kong Page 1 of 3 v 1.1.1EF001 Information relating to withholding tax Details of withholding tax (including type of shareholders and applicable tax rate) applied to the dividends declared are set out in the table below. In addition for investors who are tax residents of other countries which have entered into a tax treaty with the PRC stipulating a dividend tax rate of lower than 10% the enterprises and individuals may or may entrust a withholding agent to apply to the competent tax authorities for the entitlement of the rate under such tax treaty. Upon approval by the tax authorities the amount paid in excess of the tax payable based on the tax rate according to such tax treaty will be refunded. If the individual holders of H shares are residents of countries which had an agreed tax rate of over 10% but less than 20% with China under the tax agreement the Company shall withhold and pay the individual income tax at the agreed actual rate in accordance with the relevant tax agreements. For further details please refer to the section headed "Dividend" in the annual results announcement of the Company dated 22 March 2024.Type of shareholders Tax rate Other relevant information (if any) Enterprise - non-resident i.e. registered address The Company is required to outside PRC 10% withhold and pay enterprise income tax at the rate of 10% on behalf of the non-resident enterprise shareholders whose names appear on the register of members for H shares of the Company when distributing the cash dividends or issuing bonus shares by way of capitalisation from retained earnings. Any H shares of the Company which are not registered under the name of an individual shareholder Details of withholding tax applied to the including those registered under dividend declared HKSCC Nominees Limited other nominees agents or trustees or other organisations or groups shall be deemed as shares held by non-resident enterprise shareholders. On such basis enterprise income tax shall be withheld from dividends payable to such shareholders.Individual - non-resident i.e. registered address 10% If the individual holders of H outside PRC shares are residents of Hong Kong Macau or countries which had an agreed tax rate of 10% for cash dividends or bonus shares by way of capitalisation from retained earnings with China under the relevant tax agreement the Company should withhold and pay individual income tax on behalf of the relevant shareholders at a rate of 10%. If the individual holders of H shares are residents of countries which had an agreed tax rate of less than 10% with China under relevant tax agreement the Company shall withhold and pay individual income tax on behalf of the relevant shareholders at a rate of 10%.Page 2 of 3 v 1.1.1EF001 Individual - non-resident i.e. registered address 20% If the individual holders of H outside PRC shares are residents of countries which had an agreed tax rate of 20% with China or which had not entered into any tax agreement with China or otherwise the Company shall withhold and pay the individual income tax at a rate of 20%.Domestic investors investing 20% For dividends of domestic in the H shares of the investors investing in the H Company through shares of the Company through Shanghai-Hong Kong and Shanghai-Hong Kong and Shenzhen-Hong Kong Stock Shenzhen-Hong Kong Stock Connect Program Connect Program the Company shall withhold and pay income tax at the rate of 20% on behalf of individual investors and securities investment funds. The Company will not withhold or pay the income tax of dividends for domestic enterprise investors and those domestic enterprise investors shall report and pay the relevant tax by themselves.Investors of the Hong Kong 10% For dividends of investors of the Stock Exchange (including Hong Kong Stock Exchange enterprises and individuals) (including enterprises and investing in the A shares of individuals) investing in the A the Company through shares of the Company through Shanghai-Hong Kong Stock Shanghai-Hong Kong Stock Connect Program Connect Program the Company will withhold and pay income tax at the rate of 10% on behalf of those investors and will report to the competent tax authorities for the withholding.Information relating to listed warrants / convertible securities issued by the issuer Details of listed warrants / convertible securities issued by the issuer Not applicable Other information The exchange rate of RMB 1 to HKD 1.097093 is solely for the purpose of completing this Announcement Form. The actual exchange rate used to calculate H share dividend payable in Hong Kong dollars is HKD 1 to RMB 0.9115.Directors of the issuer As of the date of this announcement directors of the Company are: Ma Yongsheng* Zhao Dong# Zhong Ren* Li Yonglin# Lv Lianggong# Niu Shuanwen# Wan Tao# Yu Baocai# Xu Lin+ Zhang Liying+ Liu Tsz Bun Bennett+ and Zhang Xiliang+.# Executive Director * Non-executive Director + Independent Non-executive Director Page 3 of 3 v 1.1.1