Appointment of a Director to Fill the Vacant Position

Change of director/Executive New election The date of board's resolution/submit : 10-Aug-2026 news Director Name : Mr. Kanokpong Muangsri Position in company (1) : Director Effective Date (1) : 11-Aug-2026 Position in company (2) : Independent Director Effective Date (2) : 11-Aug-2026 Position in company (3) : Audit Committee Effective Date (3) : 11-Aug-2026 Position in company (4) : Nomination and Remuneration Committee Effective Date (4) : 11-Aug-2026 More detail : The Board of Directors resolved to appoint Dr. Kanokpong Muangsri as a Director, Audit Committee Member, and Nomination and Remuneration Committee Member, replacing the vacant positions, with effect from August 11, 2026 onwards. The Board of Directors has considered and determined that Dr. Kanokpong Muangsri possesses extensive knowledge, capabilities, experience, and expertise in various areas, including communication and strategic management, healthcare business development and innovation, intellectual property law, and corporate governance. His appointment is expected to further strengthen the Company's operations and enhance the efficiency of its corporate governance. ______________________________________________________________________ Form to Report on Names of Members and Scope of Work of the Audit Committee (F24-1) Date of shareholders/board resolution : 10-Aug-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 : The Audit Committee is consisted of No : 1 Audit Committee's Position : CHAIRMAN OF THE AUDIT COMMITTEE Full Name : Mr.DUSIT CHONGSUTTHANAMANEE Remaining term in office (year) : 8 Month No : 2 Audit Committee's Position : AUDIT COMMITTEE Full Name : Mr.KAMON CHAIYASIT Remaining term in office (year) : 1 Year 8 Month No : 3 Audit Committee's Position : Audit Committee Full Name : Mr.Kanokpong Muangsri Remaining term in office (year) : 2 Year 8 Month Number of copies of the certificate and : 1 biography of the audit committee (persons) The order of audit committee number(s) that has/have adequate expertise and experience to review creditability of the financial reports. : 1 Scope of duties and responsibilities of the audit committee to the board of director : 1. Review that the Company and its subsidiaries prepare financial reports (quarterly and annually) that are accurate, complete, sufficient, reliable, and timely, in compliance with accounting standards and financial reporting standards prescribed by law. The Audit Committee shall coordinate and meet with the auditors and executives responsible for preparing financial reports (quarterly and annually) and adequate disclosure, and present them to the Board of Directors' meeting and/or Shareholders' meeting (as the case may be) for further consideration and approval. In this regard, the Audit Committee is responsible for overseeing management's responsibility for preparing the Company's financial statements, and external auditors are responsible for auditing such financial statements. The Audit Committee and the Board of Directors jointly acknowledge that management, internal auditors, and external auditors possess more resources, time, and knowledge regarding accounting, auditing, internal control systems, and the Company's financial reporting processes than the Audit Committee. Therefore, the Audit Committee's oversight role regarding such financial reports shall not be construed as a special guarantee of the financial statements and financial information presented by the Company to shareholders and other parties. 2. Review that the Company and its subsidiaries have appropriate, sufficient, and effective internal control and internal audit systems. 3. Review and approve the internal audit plan in conjunction with the internal auditor, particularly concerning internal control systems and financial management processes. Provide opinions and observations on the budget and staffing of the internal audit department for submission to management for approval. Consider the audit plan and scope of internal auditors and the Company's auditors, including internal audit consultants (if any), to ensure a complementary and non-redundant relationship. Review internal audit reports and consider following up on issues identified in such reports. 4. Review that the Company and its subsidiaries comply with the Public Limited Company Act, securities and exchange laws, SET regulations, and laws related to the Company's business. Also, review that the Company's subsidiaries comply with the criteria stipulated in the policy on governance of operations in subsidiaries and associates, and the good corporate governance policy. 5. Consider, select, and propose the appointment of independent individuals to serve as the Company's auditors and determine their remuneration, taking into account their credibility, sufficiency of resources, audit workload of the audit firm, and the experience of personnel assigned to audit the Company, including past performance, as well as consider the removal of auditors. The Audit Committee shall submit such opinions to the Board of Directors for further consideration and approval. Furthermore, coordinate with the auditors regarding the objectives of the audit, scope, approach, plan, issues encountered during the audit, and matters deemed material by the auditors. The Audit Committee shall also meet with the auditors without management present at least once a year. 6. Review the scope and audit methodology proposed by the auditors, including considering the reasons for any changes to the audit plan (in case of subsequent changes to the audit plan). Also, recommend that the auditors review or examine any items deemed necessary and material during the audit of the Company and its subsidiaries. And review the auditors' reports submitted to management for rectification and follow up on the implementation of those recommendations. 7. Consider connected transactions or transactions that may involve conflicts of interest, as well as the acquisition or disposal of assets by the Company and its subsidiaries, to ensure they are accurate, complete, and in compliance with securities and exchange laws and SET regulations. Also, ensure accurate and complete disclosure of information regarding such transactions, as well as the governance of operations in subsidiaries and associates, and the good corporate governance policy. This is to ensure that such transactions are reasonable and provide the utmost benefit to the Company. 8. Prepare the Audit Committee's report for disclosure in the Company's annual report. Such report must be signed by the Chairman of the Audit Committee and must contain at least the information prescribed by the SEC's announcements, including at least the following information: - Opinion on the accuracy, completeness, and reliability of the Company's financial reports. - Opinion on the adequacy of the Company's internal control system. - Opinion on compliance with securities and exchange laws, including SET regulations, or laws related to the Company's business. - Opinion on the suitability of the Company's auditors. - Opinion on transactions that may involve conflicts of interest. - Number of Audit Committee meetings and attendance of each Audit Committee member. - Overall opinions or observations of the Audit Committee derived from performing duties according to the charter. - Any other items that shareholders and general investors should be aware of, within the scope of duties and responsibilities assigned by the Board of Directors. 9. Review that the Company has appropriate and effective risk management processes, capable of assessing the adequacy and suitability of applying such risk management processes strategically to enable the Company to develop and grow sustainably. 10. Support the operations of the Risk Management Working Group and the Board of Directors in overseeing the Company's overall risk management, to ensure that risk management aligns with the Company's operations. Also, fully consider risks to stakeholders and related parties. 11. Meet with management and the internal audit department to review that the Company has adequate risk management and control systems. 12. In performing its duties, if the Audit Committee finds or suspects any of the following transactions or actions that may significantly affect the Company's financial position and operating results, the Audit Committee shall report to the Board of Directors for corrective action within a period deemed appropriate by the Audit Committee: 1) Transactions that may involve conflicts of interest. 2) Suspicions or presumptions of potential fraud, irregularities, or significant deficiencies in the internal control system. 3) Suspicions of potential violations of SEC regulations, SET regulations, the Public Limited Company Act, securities and exchange laws, or other regulations related to the Company and/or its business. 13. In cases where the auditor finds suspicious circumstances indicating that a director, executive, or person responsible for the Company's operations has committed an offense as specified by law and has informed the Audit Committee of the facts regarding such circumstances, the Audit Committee shall report the preliminary audit results to the SEC within 30 days from the date of notification. The suspicious circumstances to be reported and the methods for obtaining facts about such circumstances shall comply with SEC regulations or other relevant criteria. 14. Review that the Company has a continuous process for developing good corporate governance, and provide necessary guidelines and recommendations for development. This includes emphasizing and promoting the Company to set good corporate governance as a regular agenda item for Board of Directors' meetings and the Company's annual general shareholders' meetings. And ensure that the Chairman of the Audit Committee receives a copy of the report on conflicts of interest under Section 89/14 of the Securities and Exchange Act from the Company Secretary within 7 business days from the date the Company receives such report. 15. Consider the independence of the internal audit unit, including the adequacy of its budget and personnel. As well as approve the appointment, transfer, or dismissal of the Head of Internal Audit or any other unit responsible for the Company's internal audit. And evaluate the annual performance of the Head of Internal Audit. 16. The Audit Committee shall regularly review the suitability of the charter annually to ensure that its content aligns with the Company's objectives, operational strategies, and current legal changes. Any significantly amended charter must be approved by the Board of Directors. 17. Consider the adequacy and effectiveness of coordination between the auditors and internal auditors. 18. Review the Company's internal processes regarding whistleblowing, complaint handling, and operations to ensure compliance with the anti-corruption policy, relevant regulations and laws, and international standards, ensuring they are robust, appropriate, up-to-date, and efficient, as determined by the Audit Committee. 19. Perform any other tasks assigned by the Board of Directors and approved by the Audit Committee. The Audit Committee shall regularly review the suitability of the charter annually to ensure that its content aligns with the Company's objectives, operational strategies, and current legal changes. Any significantly amended charter must be approved by the Board of Directors. ______________________________________________________________________ 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.CHANAPAT KAOUBOL ) 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. 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