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

TRANSLATION As of 9 April 2015 Readers should be aware that only the original Thai text has legal force and that this English translation is strictly for reference. Notification of the Office of the

acquisition of assets under the Notification of the Capital Market Supervisory Board No. TorChor. 20/2551 Re: Rules on Entering into Material Transactions Deemed as Acquisition or Disposal of Assets (as amended

2018. The transaction mentioned above is considered as a disposal of assets in accordance with the Notification of the Capital Market Supervisory Board No. TorChor. 20/2551 (2008) Re: Rule on Entering