Management Name : Mr CHODIWAT DUNTANASARN | Type of securities : Common share | Methods of Acquisition / Disposition : Buy | Transaction Date : 11/09/2017

Management Name : Mr CHODIWAT DUNTANASARN | Type of securities : Common share | Methods of Acquisition / Disposition : Buy | Transaction Date : 20/09/2017

Management Name : Mr CHODIWAT DUNTANASARN | Type of securities : Common share | Methods of Acquisition / Disposition : Buy | Transaction Date : 22/09/2017

Management Name : Mr CHODIWAT DUNTANASARN | Type of securities : Common share | Methods of Acquisition / Disposition : Buy | Transaction Date : 27/09/2017

Management Name : Mr CHODIWAT DUNTANASARN | Type of securities : Common share | Methods of Acquisition / Disposition : Buy | Transaction Date : 28/09/2017

auditor, which impose requirements for information technology governance and auditing of audit firms by IT specialists to ensure that risk management in the use of information technology in audit firms

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Guidelines for Establishment of Information Technology Systems

Guidelines on Establishment of Information Technology Systems

Rules in Detail on Establishment of Information Technology System