Board No. Tor Thor. 35/2556 Re: Standard Conduct of Business, Management Arrangement, Operating Systems and Providing Services to Clients of Securities Companies and Derivatives Intermediaries dated 6

608.15 4.22% 589.08 4.36% (19.07) (3.14%) Administrative expenses 355.98 2.47% 359.98 2.66% 4.00 1.12% Profit from operating activities 271.85 1.89% 238.33 1.76% (33.52) (12.33%) Finance income 5.90 0.04

duties and responsibilities of each type of work and responsibilities of the personnel in the computer division. · Providing a reserve personnel for the importance work for performing instead in of

responsibilities of the personnel in the computer division. o Providing a reserve personnel for the importance work for performing instead in of necessary case such as system administrator computer operator etc

30-E 1/1 RC 030/18 10 May 2018 Subject : Report on the Company’s operating results for the first quarter of the year 2018 Attention : President of the Stock Exchange of Thailand The Board of

(Translation) UAC.CS/002/2018 February 20, 2018 Subject: Explanation of the operating results for the year period ended December 31, 2017 To: President The Stock Exchange of Thailand Attachment

(Translation) UAC.CS/011/2018 May 14, 2018 Subject: Explanation of the operating results for the first quarter period ended March 31, 2018 To: President The Stock Exchange of Thailand Attachment

1/2 RC 57/18 6 November 2018 Subject : Report on the Company’s operating results for the third quart er of the year 2018 Attention : President of the Stock Exchange of Thailand The Board of Directors

-AC61/022 November 7, 2018 Subject : Management discussion and analysis of the operating results for the third quarter of 2018, ending September 30, 2018 To : The President of the Stock Exchange of

Microsoft Word - CS 2563-010 Q2 to SET (T_E) [ TRANSLATION ] Our Ref. JTS/CS-010/2563 August 13, 2020 Subject : Report on the Company’s operating results for the second quarter of the year 2020 To