., 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

; income (loss) from continuing operations per share; 3    total assets; total liabilities; net assets or liabilities; capital stock (excluding long term debt and redeemable preferred stock); number of

appears in the SEC’s approved list; “related person” means a related person under the Notification of the Capital Market Supervisory Board concerning the Rules on Related Party Transactions; “Stock Exchange

;                                           Specific riskSET 50 individual stock/ หุ้นต่าง

1 Ref. No. IVL 006/11/2017 9 Nov 2017 The President The Stock Exchange of Thailand Subject: Submission of Quarterly Reviewed Financial Statements and the Management Discussion and Analysis of

came from the provision for damage of missing stock recorded in the 3rd quarter of 2017.  Financial costs Consolidated financial costs for the 3rd quarter of 2017 and 2016 amounting to THB 249 million