-1- AIT (VP-SEC) 013E/2018 May 8, 2018 Subject: Management's Discussion and Analysis of Operating Results for Q1-2018 To: The President of The Stock Exchange of Thailand Summary of Operations Q3

วันที่ 10 พฤษภาคม พ -Translation- 1 Ref. LPN/SorKor/109/2561 10th May, 2018 Re: Report on Financial Analysis in Q1/2018 Dear: President The Stock Exchange of Thailand L.P.N. Development Public Co

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

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