Form to Report on Names of Members and Scope of Work of the Audit Committee (F24-1)

Form to Report on Names of Members and Scope of Work of the Audit Committee (F24-1) Date of shareholders/board resolution : 27-Oct-2026 The Determination/Change of which shall : 27-Oct-2026 take an effect as of The Audit Committee is consisted of No : 1 Audit Committee's Position : CHAIRMAN OF THE AUDIT COMMITTEE Full Name : Mrs.KAISRI NUENGSIGKAPIAN Remaining term in office (year) : 3 Year No : 2 Audit Committee's Position : AUDIT COMMITTEE Full Name : Mr.RAPEE SUCHARITAKUL Remaining term in office (year) : 2 Year No : 3 Audit Committee's Position : AUDIT COMMITTEE Full Name : Mrs.PAKAPUN LEEVUTINUN Remaining term in office (year) : 1 Year No : 4 Audit Committee's Position : SECRETARY OF THE AUDIT COMMITTEE Full Name : Ms.Chonatip Sitnarain The order of audit committee number(s) that has/have adequate expertise and experience to review creditability of the financial reports. : 1-3 Scope of duties and responsibilities of the audit committee to the board of director : Oversight, Risk Management, Oversight of Performance of Duties, and Internal Controls 1. Oversee that the Company has a financial report system and a disclosure of financial statements that meet the standard, has a financial report conducted by coordinating with external auditors and responsible executives, and has financial statements issued on a quarterly and annual basis. The Audit Committee may suggest auditors to review or audit any transaction deemed important and necessary while undergoing audit services, and providing support so that the financial report system is further improved to meet the International Financial Reporting Standards (IFRS) 2. Consider the Company and its subsidiaries connected transactions, material transactions and transactions with possible conflict of interest to ensure compliance with all pertinent laws and requirements of the Securities and Exchange Commission, Thailand, thereby ensuring aforementioned transactions are reasonable and of utmost benefits. 3. Review the presence of the Companys risk management processes to ensure their efficiency and effectiveness, in compliance with international standards, covering operational risks, information technology risks, including cybersecurity, artificial intelligence governance (AI Governance), communication network systems, and emerging risks, under the oversight of the risk management working group. 4. Review the Companys effective Anti-corruption system to ensure compliance with the governance bodies guidelines such as Thai Private Sector Collective Action Against Corruption (CAC), The Thai Institute of Directors Association (IOD) and The National Anti-Corruption Commission (Section 123/5) starting from promoting and raising the awareness, assessing the risks, internal control, incorporating the proactive preventive system, offense reporting, auditing, giving consultation and following up to ensure compliance with the Anti-corruption Policy as well as reviewing the self-assessment form regarding anticorruption measures as audited and assessed by Internal Audit Office. 5. Review the Companys compliance to be in line with the Securities and Exchange laws, the regulations stipulated by The Stock Exchange of Thailand (SET) and Capital Market Supervisory Board, as well as the rules, regulations and other laws relating to the Company and its subsidiaries businesses. The Audit Committee shall also review the implementation of regulations and policies relating to the Corporate Governance in the Companys subsidiaries and associated companies, and the management of both subsidiaries and associated companies in the main business. 6. Review the compliance of the Companys Internal Control System with Internal Control Framework and the appropriateness and the effectiveness of the Companys Internal Audit System in accordance with internationally accepted approaches and standards. Also, review The Assessment Form of the Adequacy of the Internal Control System as audited and assessed by the Internal Audit Office to ensure that the Company has sufficient internal control system and propose to the Board of Directors for endorsement. 7. Review the results of fraud investigation and punishment, establish the preventive measures in organization and review the internal processes of whistleblowing system. 8. Review the presence of proactive preventive system to enhance operating effectiveness and efficiency. 9. Review the implementation of procedures for corporate governance, risk management, and following up on Environmental, Social and Governance (ESG) related matters. Others 10. Select and propose the appointment of, or recommend the discharge of, an independent person to perform the duties of the Companys auditor, propose the remuneration of the Companys auditor, evaluate the effectiveness of auditor's performance, and also approve the hiring process and qualifications based on the fundamental principles and independence of the auditor or member of the audits firm or network firm in using non-audit, non-review, or non-assurance services. 11. Constantly report the activities of the Audit Committee to the Board of Directors for their acknowledgement, as well as preparing and proposing the Audit Committees report to the Board of Directors at least once a year. 12. Prepare the Audit Committees report and have it disclosed in the Companys annual report. The report must be signed by the Chairman of the Board of Directors and must, at least, include the information as follows: (A) Opinions regarding the accuracy and reliability of the Companys financial report; (B) Opinions regarding the sufficiency of the Companys internal control system; (C) Opinions regarding compliance with the Securities and Exchange laws, the regulations of SET, or the laws relating to the Companys business; (D) Opinions regarding the appropriation of auditors; (E) Opinions regarding transaction which may lead to conflicts of interest; (F) The number of the Audit Committees meetings and the meeting attendance of each member of the Audit Committee; (G) Overall opinions or observation that the Audit Committee gain from performing duties according to the Charter; (H) And other matters the Audit Committee deemed appropriate to notify shareholders and general investors, within the scope of duties and responsibilities as assigned by the Board of Directors. 13. Reviewing and providing comments, expectations, and the Audit Committees key matters on the performance of the Internal Audit Office, and arranging for a meeting with the Director of the Internal Audit Office and/or with the auditor and without the involvement of management at least once a year to acknowledge the review results of quarterly financial statements and yearly financial statements, and to discuss any issues or obstacles that may be found in the audit practices. 14. Approving the audit plan of the Internal Audit Office, developed in accordance with professional internal auditing standards and the organization's strategic objectives including the resources plans, for instance, budget, technology, staffing levels of the Internal Audit Office, and significant changes. 15. Reviewing and endorsement of the appointment, or rotation of the Director of the Internal Audit Office, including reviewing the qualifications, roles and responsibilities of the Director of the Internal Audit Office when there are significant changes that may affect the authority, responsibilities, and conducting an appraisal annually. 16. Approving the Charter of the Internal Audit Office, and the independence of the Internal Audit Office, reviewing and approving the internal audit quality assurance and improvement plans in accordance with international standards, at least once a year. 17. Review the presence of the Audit Committees performance assessment as a whole and as self-assessment on an annual basis as well as the Audit Committee Charter at least once a year and propose it for the approval of the Board of Directors. 18. Undergo internal audit evaluation by an external independent organization at least once every five years. 19. Perform other actions as required by law or as assigned by the Board of Directors. To fulfill its duties under its scope of authority, the Audit Committee is authorized to call for and order management, heads of offices, or employees concerned to present opinions, attend meetings, or submit necessary documents. In addition, the Committee may seek independent opinion from professional consultants as deemed appropriate, at the Companys expense. The Audit Committee shall perform duties within its authority and responsibilities under the order of the Board of Directors. The Board of Directors is responsible for the Companys operations to shareholders, stakeholders, and the public. Should there is any change in responsibilities of the Audit Committee, the Company shall disclose said resolution regarding the change in responsibilities and prepare a list and document stating the changes in the Audit Committees scope of duties in line with SETs stipulation. The aforementioned documents must be sent to SET within three days of the changes by means stipulated in the SETs regulations relating to reporting via electronic media. ______________________________________________________________________ The company hereby certifies that 1. The qualifications of the aforementioned members meet all the requirements of the Stock Exchange of Thailand; and 2. The scope of duties and responsibilities of the audit committee as stated above meet all the requirements of the Stock Exchange of Thailand Signature _________________ ( Mr.THAMMASAK SETHAUDOM ) DIRECTOR Authorized to sign on behalf of the company Signature _________________ ( Mr.WICHAN JITPUKDEE ) DIRECTOR Authorized to sign on behalf of the company ______________________________________________________________________ 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. 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