Report of the Acquisition or Disposition of Securities (Form 246-2) 2.1 (     ) Acquisition (  ) Disposition (     ) Through the Stock Exchange of Thailand via a securities company

Report of the Acquisition or Disposition of Securities (Form 246-2) 2.1 (     ) Acquisition (  ) Disposition (  ) Through the Stock Exchange of Thailand via a securities company

Report of the Acquisition or Disposition of Securities (Form 246-2) 2.1 (     ) Acquisition (  ) Disposition (  ) Through the Stock Exchange of Thailand via a securities company

Report of the Acquisition or Disposition of Securities (Form 246-2) 2.1 (     ) Acquisition (  ) Disposition (  ) Through the Stock Exchange of Thailand via a securities company

Report of the Acquisition or Disposition of Securities (Form 246-2) 2.1 (  ) Acquisition (     ) Disposition (  ) Through the Stock Exchange of Thailand via a securities company

Report of the Acquisition or Disposition of Securities (Form 246-2) 2.1 (  ) Acquisition (     ) Disposition (  ) Through the Stock Exchange of Thailand via a securities company

1 Ref: AC.008/2020 25 February 2020 Subject: Management discussion and analysis of financial position and operating results To: President and Manager The Stock Exchange of Thailand Overall operating

32 MDA Q3 60 EN -Translation- No. ECF2 077/2017 November 14, 2017 Subject: Management Discussion and Analysis of the 3rd quarter ended September 30, 2017 To President The Stock Exchange of Thailand

1 Ref: AC.016/2019 4 May 2019 Subject: Management discussion and analysis of financial position and operating results To: President and Manager The Stock Exchange of Thailand Overall operating

1 RP-AC 003/2019 AUGUST 13, 2019 Subject: Clarification of the operating results for the second quarter of 2019 To: Directors and Managers of the Stock Exchange of Thailand Richy Place 2002 Public