Form to Report on Names of Members and Scope of Work of the Audit Committee (F24-1) Date of shareholders/board resolution : 29-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 : 1. Review quarterly and annual financial statements, including the adequacy of disclosures, in consultation with external auditors regarding accuracy and compliance with accounting standards, before submitting them to the Board of Directors for approval. 2. Review related party transactions or transactions that may have conflicts of interest with related companies, ensuring reasonableness and compliance with laws and regulations of the Stock Exchange of Thailand, and providing accurate and complete disclosure of information on such matters for the best interests of the company. 3. Review the company's internal control system and consider the independence of the internal audit unit, as well as overseeing internal audits in accordance with the annual audit plan. 4. Review the company's compliance with the Securities and Exchange Act, regulations of the Stock Exchange of Thailand, or other laws related to the company's business. 5. Report the Audit Committee's performance to the Board of Directors at the Annual General Meeting of Shareholders to clarify related matters. 6. Consider and select auditors, considering their independence, skills, and knowledge in the business, as well as considering audit remuneration, and providing an opinion to the Board of Directors for consideration and presentation to the Annual General Meeting of Shareholders for approval. This includes attending meetings with the auditors without the company's management present at least once a year. 7. Prepare and disclose the Audit Committee's report. The company's Annual Report (Form 56-1 One Report) must be signed by the Chairman of the Audit Committee and contain at least the following information: 1) An opinion on the accuracy, completeness, and reliability of the company's financial statements. 2) An opinion on the adequacy of the company's internal control system. 3) An opinion on compliance with the Securities and Exchange Act, Stock Exchange regulations, or other laws related to the company's business. 4) An opinion on the suitability of the auditors. 5) An opinion on any potential conflicts of interest. 6) The number of Audit Committee meetings and the attendance of each Audit Committee member. 7) Overall opinions or observations received by the Audit Committee in performing its duties according to the charter. 8) Any other information that the Audit Committee deems should be known to shareholders and general investors, within the scope of duties and responsibilities assigned by the Board of Directors. The Determination/Change of which shall : 29-Apr-2026 take an effect as of The Audit Committee is consisted of No : 1 Audit Committee's Position : AUDIT COMMITTEE Full Name : Mr.AKIRA FUJITA Remaining term in office (year) : 3 Year No : 2 Audit Committee's Position : AUDIT COMMITTEE Full Name : Mr.CHOR.NUN PETPAISIT Remaining term in office (year) : 3 Year No : 3 Audit Committee's Position : CHAIRMAN OF THE AUDIT COMMITTEE Full Name : Mr.SUPHOT SINGHASANEH Remaining term in office (year) : 3 Year ______________________________________________________________________ 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.JUNICHI ISHIHARA ) DIRECTOR Authorized to sign on behalf of the company Signature _________________ ( Mr.HIDEKI TAKAYASU ) 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.