Other Important Information Company Secretary, Chief Accountant, Head of Internal Audit, and Head of Corporate Compliance Company Secretary In pursuant to the Securities and Exchange Act (No. 4) B.E. 2551 (2008), Sections 89/15 and 89/16, the Board of Directors at Meeting No. 10/2019 held on Augus t 19, 2019, appo i nted Mrs . Pi l asphan Udomjarumanee, Senior Vice President of Corporate Governance and Legal, as Company Secretary. By law, the responsibilities of Company Secretary include the preparation and safekeeping of important company documents, including the register of directors, meeting notices, Board and shareholders’ meeting minutes, Form 56-1 One Report, and conflicts of interest forms filled by Directors and Executives. The Company Secretary is in charge of organizing Board and shareholders’ meetings and submitting copies of reports on Directors and Executives interests to the Chairman of the Board of Directors and the Chairman of the Audit Committee. The Company Secretary also advises the Board and Executives on the rules and regulations they should familiarize themselves with, organizes training and orientation for current and new Directors, as well as provides them with information essential to their performance of duties as Directors. Moreover, the Company Secretary oversees compliance with laws, regulations and resolutions passed in Board and shareholders’ meetings, as well as collaborates with relevant agencies on compliance. The Company Secretary has undergone training courses necessary for her to duly perform her roles. The qualifications of the Company Secretary are disclosed in Attachment 1 “Details of Directors, Executives, Controllers, and Company Secretary.” Chief Accountant GC appo i nted Mrs . Ratana War i npramote as Vice President - Financial Accounting 1, effective August 1, 2023, and Miss Duantip Wuttichartkriengkrai as Vice President - Financial Accounting 1 from January 1, 2023 to July 31, 2023, to oversee the Company’s accounting and ensure its compliance with relevant standards, laws, and regulations. The qualifications of the Chief Accountants are disclosed in Attachment 1 “Details of Directors, Executives, Controllers, and Company Secretary.” Head of Internal Audit The Audit Committee meeting No. 8/2017 convened on September 18, 2017 approve the appointment of Mr. Amorn Putiphrawan as Senior Vice President of Internal Audit, effective January 1, 2018. As Mr. Amorn Putiphrawan retired in December 2023, the Audit Committee meeting (Special) No. 1/2023 on September 17, 2023 appoint Mr. Chatchawalit Dhammasaroj as Senior Vice President of Internal Audit, effective January 1, 2024, responsible for evaluating and enhancing the internal control effectiveness, supervising the operations of the internal audit function to be in accordance with the objectives and the international standards, including objectivity and independence for consulting on the company and report directly to the Audit Committee. The qualifications of the Head of Internal Audit are disclosed in Attachment 3 “Details of the Heads of the Internal Audit and Compliance Units”. 174
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