Roles and Responsibilities of the " Audit Committee"

1. To review the Company’s financial report in order to ensure that it is accurate and adequate;
2. To review the Company’s internal control system including risk management and internal audit system ensuring that they are suitable and effective, to determine the degree of independence of the internal audit group, as well as to approve the appointment, transfer and dismissal of the head of an internal audit group or any other group responsible for internal audit functions within the Company;
3. To review the Company’s compliance with the laws on Securities and Exchange, the SET’s regulations, and any other laws relating to the Company’s business;
4. To consider the qualifications, independence, performance and audit fee of the external auditors in order to exercise final approval on the appointment or termination of the auditors;
5. To meet separately with the external auditors without the presence of management at least once a year;
6. To review any connected transactions or transactions that may lead to a conflict of interest situation, in order to ensure that they are in full compliance with the laws and regulations of the SET as well as that such transactions are reasonable and undertaken for the fullest benefit of the Company;
7. To prepare the Audit Committee’s Report to be included in the Company’s Annual Report, which must be signed by the Audit Committee Chairman and consists of at least the following information:
   • a. An opinion on the accuracy, completeness and reliability of the Company’s financial report.
   • b. An opinion on the adequacy of the Company’s risk management and internal controls system.
   • c. An opinion on the compliance with the laws on Securities and Exchange, the SET’s regulations or any other laws relating to the Company’s business.
   • d. An opinion on the suitability of an auditor.
   • e. An opinion on the transactions that may lead to conflict of interest situations.
   • f. The number of the Audit Committee meetings and the attendance record at such meetings by each member of the Audit Committee.
   • g. Any opinions or comments that are received by the Audit Committee in performing its duties in accordance with its Charter.
   • h. Other transactions which, in the opinion of the Audit Committee, should be made known to the Shareholders and general investors, subject to the scope of duties and responsibilities as assigned by the Company’s Board of Directors.
8. To review the Company’s compliance with private sector’s anti-corruption and certification programs, including the Collective Action Coalition against Corruption’s Self-Evaluation Tool.
9. Review the whistle-blowing report prepared by Internal Audit Department on a quarterly basis, and oversee the Company’s whistle-blowing process for receiving whistle-blowing information and taking appropriate action.
10. To perform any other activities as assigned by the Company’s Board of Directors and concurred to by the Audit Committee.