Interim Dividend payment

Dividend payment / Omitted dividend payment Subject : Cash dividend payment Date of Board resolution : 24-Aug-2026 Type of dividend payment : Cash dividend payment Record date for the right to receive : 08-Sep-2026 dividends Ex-dividend date : 07-Sep-2026 Payment for : Common shareholders Cash dividend payment (baht per share) : 0.60 Derived from profit under non-BOI : 0.00 privilege (baht per share) Derived from profit under BOI privilege : 0.60 (baht per share) Par value (baht) : 10.00 Payment date : 22-Sep-2026 Paid from : Retained Earnings Remark : PTT Global Chemical Public Company Limited (the "Company") would like to inform that the Board of Directors Meeting No. 11/2026, held on 24 August 2026, resolved to approve the payment of an interim dividend for the first six-month operating results of 2026 to the Company's shareholders at the rate of THB 0.60 per share, representing a total amount of approximately THB 2,705 million. The dividend will be paid from the Company's unappropriated retained earnings derived from profits that have been subject to corporate income tax under the Revenue Code. Individual shareholders shall be entitled to a dividend tax credit pursuant to Section 47 Bis of the Revenue Code at the rate of 10%, calculated as the dividend amount multiplied by 10/90. ______________________________________________________________________ The company hereby certifies that the information above is correct and complete. Signature _________________ ( MR.Thitipong Jurapornsiridee ) Executive Vice President - Finance and Accounting Authorized person to disclose information ______________________________________________________________________ This announcement was prepared and disseminated by listed company or issuer through the electronic system which is provided for the purpose of dissemination of the information and related documents of listed company or issuer to the Stock Exchange of Thailand only. The Stock Exchange of Thailand has no responsibility for the correctness and completeness of any statements, figures, reports or opinions contained in this announcement, and has no liability for any losses and damages in any cases. In case you have any inquiries or clarification regarding this announcement, please directly contact listed company or issuer who made this announcement. If you would like to see the full details of this information, please click view "full details" in attached file.