September 2017 Subject: Notification of the Board of Directors No.8/2017 and the date of the Extraordinary General Meeting of Shareholders No. 1/2017 (Amended 3) To: The President The Stock Exchange of

2017 Subject: Notification of the Board of Directors No. 10/2017, Postponement of the date of the Extraordinary General Meeting of Shareholders No.1/2017 and the Record Date To: The President The Stock

and concurrently is the Executive Vice President of CH. Karnchang Public Company Limited. 4. Mrs. Payao Marittanaporn is the Managing Director of Bangkok Expressway and Metro Public Company Limited and

Microsoft Word - MDA FY19 EN.docx February 24, 2020 To President The Stock Exchange of Thailand Subject Notification on the difference of revenue from sales and net profit YOY by more than 20 percent

Diamond Products Company. Details are shown in the Attachment: Information Memorandum on Acquisition of Assets. Please be informed accordingly. Yours Sincerely, Pete Rimchala Managing Director Information

and Metro Public Company Limited and concurrently is the Executive Vice President of CH. Karnchang Public Company Limited. (Translation) 5 4. Mrs. Payao Marittanaporn is the Managing Director of Bangkok

and concurrently is the Executive Vice President of CH. Karnchang Public Company Limited. 4. Mrs. Payao Marittanaporn is the Managing Director of Bangkok Expressway and Metro Public Company Limited

considered as related transaction according to Notification of Capital Market Commission as the category of assets or services transaction which is more than 1 million baht but less than 20 million baht or

transaction is less than 15 percent. Therefore, the information disclosed in the Notification of the Acquisition or Disposal of Assets 3.5 Criteria for Measurement of Connected Transactions Comparing net asset

as the transaction size of asset acquisition. The size of the transaction is less than 15 percent. Therefore, the information disclosed in the notification of the acquisition or disposal of assets 3/5