. Notification of the Securities and Exchange Commission No. KorThor. 18/2549 Re: Maintenance of Net Capital ___________________________________ By virtue of Section 14 and Section 97 of the Securities and

and Allocation of Securities to the Specific Investor (Private Placement) To The President The Stock Exchange of Thailand Attachment 1. Information Memorandum regarding the Acquisition of Assets and

. Moreover, the natural resources business group realized loss on foreign exchange of THB 99 million from loan to subsidiary, after Thai Baht appreciated against US Dollar in this quarter. Management

Exchange of Thailand Enclosure: 1) Information Memorandum on Assets Acquisition of Master Ad Public Company Limited; (amended) 2) Capital Increase Report Form (F53-4); 3) Information Memorandum on the

Exchange of Thailand Enclosure: 1) Information Memorandum on Assets Acquisition of Master Ad Public Company Limited; 2) Capital Increase Report Form (F53-4); 3) Information Memorandum on the Issuance and

-517-0109-14 Fax 66-2-5170529 February 27, 2017 Subject Management Discussion and Analysis for the year ended December 31, 2016 To Managing Director of Stock Exchange of Thailand Table of Financial Ratio

Analysis Q2/2020 IR63/013 13 August 2020 Subject Management Discussion and Analysis for the second quarter ended 30 June 2020 Attention President The Stock Exchange of Thailand According to the resolution of

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Agreement which is a Connected Transaction, Appointment of the Independent Financial Advisor and Calling the Extraordinary General Meeting of Shareholders No. 2/2019 To The President The Stock Exchange of

any responsibility for its accuracy nor be held liable for any loss or damages arising from or related to its use. ---------------------- Notification of the Securities and Exchange Commission No