, trader codes/details of the business entities whose financial statements for the latest period have been signed by an auditor in giving opinion or whose working paper has been reviewed by the SEC Office

, trader codes/details of the business entities whose financial statements for the latest financial period have been signed by an auditor in giving opinions or whose working paper has been reviewed by the

-1- AIT (VP-SEC) 003E/2023 16 February 2023 Subject: Management's Discussion and Analysis of Operating Results for the year 2022 and Q4-2022 To: The President of the Stock Exchange of Thailand

and Allocation of Securities to the Specific Investor (Private Placement) To The President The Stock Exchange of Thailand Attachment 1. Information Memorandum regarding the Acquisition of Assets and

., and Schedule for the EGM of Shareholders No. 1/2019 To: The President The Stock Exchange of Thailand Enclosure: 1. Information Memorandum of Hydrotek Public Company Limited on Disposal of Assets and

., and Schedule for the EGM of Shareholders No. 1/2019 (Revised) To: The President The Stock Exchange of Thailand Enclosure: 1. Information Memorandum of Hydrotek Public Company Limited on Disposal of

., and Schedule for the EGM of Shareholders No. 1/2019 (Revised2) To: The President The Stock Exchange of Thailand Enclosure: 1. Information Memorandum of Hydrotek Public Company Limited on Disposal of

., and Schedule for the EGM of Shareholders No. 1/2019 (Revised3) To: The President The Stock Exchange of Thailand Enclosure: 1. Information Memorandum of Hydrotek Public Company Limited on Disposal of

approving 535,436, Company amendme registered 4, 2019 Notificatio of the Da Capital by Director a The Stock re 1. Capita 2. Inform Existin As Nation s’ Meeting No d the significa 1. Resolv g the decreas

total amount of THB 3,445 mn. Hence, CPN effectively has 67.53% ownership in GLAND as announced to the Stock Exchange of Thailand (SET) on November 5, 2018. For the consolidated financial statements at