Management Discussion and Analysis Q3/2019 Financial Result Summary Q3/ 2019 Q3/19 Q3/18 Change +/(-) 9M/19 9M/18 Change +/(-) (in THB mm) YoY 9M Revenue from Sales and Services 57.4 54.3 6% 146.9

(Translation) Bangkok Expressway and Metro Public Company Limited Management Discussion and Analysis for the Quarter Ended on March 31, 2020 1 Significant events in the first quarter of the year 2020

28 April 2020 At: ACC/HO 011/63 Re: Management Discussion and Analysis for the Quarter of 1/2020 To: President The Stock Exchange of Thailand Following the Coronavirus 2019 (COVID-19) pandemic and

Page 1 of 7 Management Discussion and Analysis 2018 Executive Summary The operating result of 2018, Singha Estate Public Company Limited (“the Company” or “Singha Estate”) reached total revenue of

Page 1 of 7 Management Discussion and Analysis 1Q2019 Executive Summary Singha Estate Public Company Limited (“the Company”) reported 1Q19 Total revenue of THB 3,000m, increased by 167% YoY. The

the Management Discussion and Analysis (MD&A) as attached herewith. Please be informed accordingly. Yours faithfully, For and on behalf of Diamond Building Products Public Company Limited (Mr. Satid

increase by Baht 42.70 million or an increase of 11.57 percent from the same period of previous year, due to effective management of production cost and selling expenses. Details of the changes or impacts

-month period, the net profit increased by Baht 6.28 million or 2.56 percent. Details of the changes or impacts are described in the Management Discussion and Analysis (MD&A) as attached herewith. Please

described in the Management Discussion and Analysis (MD&A) as attached herewith. Please be informed accordingly. Yours faithfully, For and on behalf of Diamond Building Products Public Company Limited (Mr

1 Bangkok Commercial Asset Management Public Company Limited Management Discussion and Analysis For the first quarter ended March 31, 2020 Bangkok Commercial Asset Management Public Company Limited