วันที่ 14 สิงหาคม 2550 DEMCO Public Company Limited No. Demco AC001/2019 February 28, 2019 Subject : The company’s operating result of the year 2018 To : The president, The Stock Exchange of Thailand

Page 1 of 2 No. ACC1903/001 March 1, 2019 Subject: Approval to enter into Contract to sell of Common Stock (addition) To: President The Stock Exchange of Thailand According to the Board of Director’s

Page 1 of 3 No. ACC1903/001 March 1, 2019 Subject: Approval to enter into Contract to sell of Common Stock (additional 2) To: President The Stock Exchange of Thailand According to the Board of

Palmer & Turner (Thailand) Ltd MJD.IR.009/2562 14 May 2019 Subject : Clarification of the operating result for the year 2019 ended March 31, 2019 To : Director and Manager The Stock Exchange of

15 May 2019 Subject: Management Discussion and Analysis for the 3-Month Period Ended March 31, 2019 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology Public Company Limited

Attention: President The Stock Exchange of Thailand CH. Karnchang Public Company Limited (“the Company”) and its subsidiaries would like to clarify the consolidated operating result and financial position for

Exchange of Thailand. Demco Public Company Limited would like to inform you herewith the company result for the 2nd quarter of year 2019 according to the company’s consolidated financial statement ended June

operating results that posted a difference greater than 20% from the preceding year To: Director and Manager the Stocks Exchange of Thailand World corporation public company limited ("the Company") and its

and Director The Stock Exchange of Thailand Dear Sirs, Finansia Syrus Securities Public Company would like to disclose the reviewed separated and consolidated financial statements for the six-month

President and Director The Stock Exchange of Thailand Dear Sirs, Finansia Syrus Securities Public Company would like to disclose the reviewed separated and consolidated financial statements for the nine-month