Agreement which is a Connected Transaction, Appointment of the Independent Financial Advisor and Calling the Extraordinary General Meeting of Shareholders No. 2/2019 (Amended No.2) To The President The Stock

Agreement which is a Connected Transaction, Appointment of the Independent Financial Advisor and Calling the Extraordinary General Meeting of Shareholders No. 2/2019 To The President The Stock Exchange of

., 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

Bangkok Commercial Asset Management Public Company Limited Page 1 13 December 2019 Subject Management Discussion and Analysis for nine-month period ended 30 September 2019 To The President The Stock

DCORP 011/2019 February 27, 2019 Subject: Report on the overall operation of the year 2018 ended December 31, 2018 and the decrease in the overall operation more than 20 percent Attention: President Stock

Stock Exchange of Thailand Demeter Corporation Public Company Limited (“DCORP” or the “Company”) would like to submit the reviewed financial statements for first quarter of the year 2019 ended March 31

Stock Exchange of Thailand Demeter Corporation Public Company Limited (“DCORP” or the “Company”) would like to submit the reviewed financial statements for second quarter of the year 2019 ended June 30