- Translation- July 11, 2019 Subject: Notification the disposition of investment in shares. (Revised) To: Director and Manager The Stock Exchange of Thailand Eureka Design Public Company Limited (the “Company

- Translation- July 22, 2019 Subject: Notification the disposition of investment in shares. (Revised #2) To: Director and Manager The Stock Exchange of Thailand Eureka Design Public Company Limited (the “Company

the Year as at 31 December 2017 To The President The Stock Exchange of Thailand We, ZEN Corporation Group Public Company Limited (“the Group”), are please to inform you our management discussion and

the Year as at 31 December 2017 (revised) To The President The Stock Exchange of Thailand We, ZEN Corporation Group Public Company Limited (“the Group”), are please to inform you our management

the year ended December 31, 2019 To Director and Manager the Stock Exchange of Thailand According to the Board of Directors’ Meeting No.2/ 2 0 2 0 of DOD Biotech Public Company Limited ( “ the Company

) February 27, 2019 Re : Report the operating result for the year ended December 31 ,2018 by more than 20 percent. To : Director and Manager the Stock Exchange of Thailand According to the resolution of the

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

วันที่ 14 สิงหาคม 2550 DEMCO Public Company Limited No. Demco AC002/2019 May 14, 2019 Subject : The company’s operating result for the 1st quarter of year 2019 To : The president, The Stock Exchange

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

ที่ บช NO. AC. 002/2019 15 May 2019 Subject: Clarification of changes in operating performance of more than 20% To: The President of the Stock Exchange of Thailand M.K. Real Estate Development Plc