1 Translation CEN 004-2019 February 27, 2019 Subject Management Discussion, analysis and business operation of year 2018 To The Manager and President The Stock Exchange of Thailand Yearly business

1 Translation CEN 012-2019 May 14, 2019 Subject Management discussion and analysis for business operation Quarter 1-2019 To The Manager and President The Stock Exchange of Thailand For 3 months

1 Translation CEN 024-2018 May 15, 2018 Subject : Management Discussion and Analysis for quarter 1-2018 To : The Manager and President Business operation for 3 month period as ended March 31, 2018 of

(Translation) Ref. No. 1808/036EN August 10, 2018 Subject: Operating Result Clarification for Q2/2018 (Ending June 30, 2018) To: Director and Manager of the Stock Exchange of Thailand Ubis (Asia

คำอธิบายฝ่ายบริหาร_ENG (Translation) Ref. No. 1811/043EN November 9, 2018 Subject: Operating Result Clarification for Q3/2018 (Ending September 30, 2018) To: Director and Manager of the Stock

Translation CEN 034-2018 November 13, 2018 Subject : Management Discussion and Analysis for quarter 3-2018 To : The Manager and President The Stock Exchange of Thailand Business operation for 3

e-service Online Submission Investment Advisory >>   Type Title Section See document Status Notified Date Effective Date 1. Notification of the Securities and Exchange Commission  Kor Thor. 25/2560

e-service Online Submission Derivatives Fund Manager Business >>   Type Title Section See document Status Notified Date Effective Date 1. Notification of the Securities and Exchange Commission   35

e-service Online Submission Securities Borrowing and Lending >>   Type Title Section See document Status Notified Date Effective Date 1. Notification of Capital Market Supervisory Board  TorThor/Nor

e-service Online Submission Business Operation Rules >>   Type Title Section See document Status Notified Date Effective Date 1. Notification of the Securities and Exchange Commission   3/2548    17