Form to Report on Names of Members and Scope of Work of the Audit Committee (F24-1) Date of shareholders/board resolution : 24-Apr-2026 The scope of duties and responsibilities of The Audit Committee Determination/Change in the scope of duties and responsibilities of the Audit Committee with the following details : - Remain as ever - The Audit Committee is consisted of No : 1 Audit Committee's Position : CHAIRMAN OF THE AUDIT COMMITTEE Full Name : Mr.VASANT THIENHOM Remaining term in office (year) : 7 Month No : 2 Audit Committee's Position : MEMBER OF THE AUDIT COMMITTEE Full Name : Mrs.PUNNEE WORAWUTHICHONGSATHIT Remaining term in office (year) : 3 Year No : 3 Audit Committee's Position : MEMBER OF THE AUDIT COMMITTEE Full Name : Mr.MANPONG SENANARONG Remaining term in office (year) : 1 Year No : 4 Audit Committee's Position : SECRETARY OF THE AUDIT COMMITTEE Full Name : MR.PRASERT KANGKREETHAPHOL The order of audit committee number(s) that has/have adequate expertise and experience to review creditability of the financial reports. : 2 Scope of duties and responsibilities of the audit committee to the board of director : The scope of duties and responsibilities of the Audit Committee is specified in the Audit Committee charter which has been approved by the Board of Directors as follows: (a) Review Financial Reporting and Information Disclosure (1) Review the Company's quarterly and yearly financial reports to ensure that they are correctly and completely prepared in accordance with the generally accepted accounting principles. (2) In performing its duties, if the Audit Committee discovers or suspects that any of the following transactions or actions may materially affect the Company's financial position and performance, the Audit Committee shall report such issue to the Board of Directors for rectification within a period of time the Audit Committee deems fit: - Transactions which create a conflict of interest; - Frauds or irregularities or crucial defective issues in the internal control system - Breaches of the Securities and Exchange Act, the SET's regulations or the laws that are related to the Company's business. If the Board of Directors fails to cause the issue to be rectified within the said time period, any of the Audit Committee members may report such transactions or acts to the SEC or the SET. (3) Review the related party transactions or the transactions that may create a conflict of interest to ensure that such transactions conform to the laws and the SET's regulations and are reasonable and most beneficial to the Company. (b) Oversight Auditors (1) Consider, select, and nominate an independent person to act as the Company's auditor and propose remuneration for such auditor (2) Attend non-management meetings on changes in accounting policies, accounting items with material adjustment, and issues, problems, and suggestions by the auditor with the auditor at least once a year. (c) Review Sufficiency and Effectiveness of Internal Control and Internal Audit System (1) Review and ensure that the Company's internal control system, corporate governance process, risk management process and internal audit system are appropriate and effective (2) Review Compliance with Laws, Rules and Regulations and Work Procedure - Review and ensure that the Company complies with the Securities and Exchange Act, the SET's regulations, and any other laws, rules and regulations applicable to the Company. - Review and ensure that the Company complies adequately and appropriately with the anti-corruption policy and measures. (3) Review Risk Management System and Management's Risk of the Executives Aligned with the Company's Risk Appetite (4) Give importance to the integration of governance, risk management, and compliance (GRC) and the coordination and information sharing between all concerned sub-committees so as to ensure working integration and promote the GRC atmosphere and culture across the organization. (d) Establish the Audit Committee Charter that aligns with the scope of responsibilities of the Audit Committee over the Company's operation, which must be approved by the Board of Directors, and review the appropriateness of such charter at least once a year. (e) Internal Audit Department and Internal Auditor (1) Approve the Internal Audit Department's charter and yearly auditing plan and budget. (2) Ensure the independence of the Internal Audit Department (3) Approve the appointment, rotation, termination of employment, and performance evaluation of the top executive of the Internal Audit Department and/or the employment of an audit firm or any other agency to provide the internal audit service to the Company. (f) Other Duties and Responsibilities (1) Perform any other duties as prescribed by the laws, rules and/or regulations applicable to the Company or as assigned by the Board of Directors under the scope of duties and responsibilities of the Audit Committee. (2) In performing its duties under the Charter, the Audit Committee is directly accountable to the Board of Directors, and the Board of Directors remains accountable to the third parties for the Company's operation. ______________________________________________________________________ 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.PISIT SEREWIWATTANA ) DIRECTOR Authorized to sign on behalf of the company Signature _________________ ( MR.RAK VORRAKITPOKATORN ) 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. 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.