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

former declaration and explanation on the performance of Company and its subsidiaries, the 2nd-quarter net profits had been somewhat dropped mainly due to the uncontrollable factors that affected the

1188 FAX : +66 (0) 2625 1103 www.jubileediamond.co.th No. CS07/2020 May 12nd, 2020 Subject: Declaration of Operating Results for the 1st quarter ended 31 March 2020 Attn: Director and Manager, The Stock

the details of listed companies you have been involved with in the latest year No. Name of entities Industry Your responsibility (Siging Partner/Engagement Partner/EQCR 5. Declaration I hereby declare

signs shall state his/her full name and capacity and shall ensure the declaration is dated.) Form updated as of June 2021 Name of foreign collective investment scheme (CIS): Home jurisdiction: Name of

the declaration is dated.) “I/We have duly examined the information contained in this registration statement and enclosures hereto. I/We hereby certify that all of the aforementioned documents contain

authorised person of the Qualifying CIS Operator. The person who signs shall state his/her full name and capacity, and shall ensure the declaration is dated.) (name of the Qualifying CIS Operator) (name of the