. Details of the applicant (pursuant to Clause 7 of the Notification of the Capital Market Supervisory Board No. Tor Thor. 31/2556 Re: Rules on Application for Obtaining an Approval and Granting of Approval

Notification of the Office of Securities and Exchange Commission No. Sor Thor/Nor. 45/2559 Re: Rules in the Detail of Regulations Concerning the Establishment of Risk Management System for Business Continuity of

SEC, Thailand cannot undertake any responsibility for its accuracy, nor be held liable for any loss or damages arising from or related to its use. ----------------------------- Notification of the

undertake any responsibility for its accuracy, nor be held liable for any loss or damages arising from or related to its use. ----------------------------- Notification of the Office of Securities and

. The SEC, Thailand cannot undertake any responsibility for its accuracy, nor be held liable for any loss or damages arising from or related to its use. ----------------------------- Notification of the

any responsibility for its accuracy nor be held liable for any loss or damages arising from or related to its use. ----------------------------- Notification of the Office of the Securities and Exchange

No. WHAUP-CS025/2018 28 May 2018 Subject: Notification of Information Memorandum of Related Party Transaction in Relation to Right to Operate Water Utilities Business in WHA Hemaraj Industrial Zone 1

Translation EW/100/197/20 May 11, 2020 Subject: Notification of Resolutions of the Board of Directors Meeting for approval of the connected transactions of the Company. To: President The Stock

Page 1 of 4 Translation EW/100/216/20 May 28, 2020 Subject: Notification of Resolutions of the Board of Directors Meeting for approval of the connected transactions of the Subsidiaries of the Company

reference. Notification of the Securities and Exchange Commission No. Kor Yor. 51/2547 Re: Determining Proportion of Directors of Derivatives Exchange and Prohibited Characteristics of Directors of