Director who is qualified "Independent Director"

Change of director/Executive New election The date of board's resolution/submit : 17-Sep-2026 news Director Name : Miss PANNALIN MAHAWONGTIKUL Position in company (1) : Independent Director Effective Date (1) : 01-Oct-2026 ______________________________________________________________________ More detail : IRPC Public Company Limited ("the Company") would like to inform you that the Board of Directors resolved at the meeting no. 12/2026 on 15 September 2026, acknowledging the independent director qualification of Miss Pannalin Mahawongtikul, effect from 1 October 2026 onwards, as proposed by the Nomination and Remuneration Committee. ______________________________________________________________________ The company hereby certifies that the information above is correct and complete. Signature _________________ ( Mr.TERDKIAT PROMMOOL ) President and Chief Executive Officer 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.