November 13, 2006 February 28, 2018 Subjects : Clarification of operating results for the Year 2017 Attention : The Director and Manager of the Stock Exchange of Thailand The Consolidated net profit

February 28, 2019 Subjects : Clarification of operating results for the Year 2018

February 28, 2019 Subjects : Clarification of operating results for the

November 13, 2006 May 15, 2018 Subjects : Clarification of operating results for the Q1/2018 Attention : The Director and Manager of the Stock Exchange of Thailand The Consolidated net profit of

August 14, 2018 Subjects : Clarification of operating results for the six-month period ended

November 13, 2006 November 13, 2018 Subjects : Clarification of operating results for the nine-month period ended September 30, 2018 Attention : The Director and Manager of the Stock Exchange of

other relevant clarification in other topics or other reports disclosed to the public via the Company's website. 9.1 Corporate governance policy Specify corporate governance policies of the Company and

activities Skill and knowledge-oriented activities useful for performing duties of investor contacts, covering (1) business-related subjects and (2) rules, regulations, code of ethics or relevant laws. 1.3

. 1.2 Scope of activities Skill and knowledge-oriented activities useful for performing duties of investor contacts, covering (1) business-related subjects and (2) rules, regulations, code of ethics or

-related subjects and (2) rules, regulations, code of ethics or relevant laws. 1.3 Duration of activities At least 15 hours of participation in relevant activities during the past two calendar years prior to