Notice of the Second Extraordinary Shareholders' Meeting of Maoming Petrochemical Shihua Co., Ltd. in 2026

The Company will hold the 2nd Extraordinary General Meeting of 2026 at 14:45 on 17 June 2026. Meeting agenda: 1. By-election of Chen Zhi as a non-independent director 2. 2026 estimated additional continuing connected transaction quota Meeting attendees: 1. A-share holders registered at CSDC Shenzhen after the close of trading on 10 June 2026 are entitled to vote. Original notarized power of attorney for voting is required. 2. Directors of the board, supervisors of the supervisory committee, senior executives and appointed lawyers are entitled to attend the meeting. Registration period: from 16 June 2026 to 16 June 2026 The Company's shareholder may choose to vote online via the trading system of Shenzhen Stock Exchange or via the website of http://wltp.cninfo.com.cn. Part I Voting via the trading system Voting date: 17 June 2026 Voting code:360637 Voting abbreviation:Maoming Petro-chemical Shihua voting Voting process: 1. To input the "buy" instruction to begin voting 2. To input the serial number of the Investors Meeting proposals under the item of "subscription price" "1 share" for voting for, "2 shares" for voting against and "3 shares" for "abstention". Part II Voting via the internet Shareholders may choose the CA (certification authority) or service password for identity verification. As to the service password, shareholders may apply for a password on the website http://www.szse.cn or http://wltp.cninfo.com.cn. Voting period: from 17 June 2026 to 17 June 2026.

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