the Board of Directors’ meeting for connected transaction and Schedule date for the Extraordinary General Meeting of Shareholders No. 1/2016 To: The President, The Stocks Exchange of Thailand The Board
/2018 December 19, 2018 Re: Notification of Resolutions of the Board of Directors’ Meeting No. 8/2018 Attn.: President The Stock Exchange of Thailand Enclosure 1. Information Memorandum on Acquisition of
Exchange of Thailand Enclosure Capital Increase Form (F 53-4) (amended) Following Hydrotek Public Company Limited (the “Company”)’s Board of Directors’ Meeting No. 10/2017 held on October 19, 2017 at 5.00 pm
., 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
1 No. CC20190203ELE February 27, 2019 Subject Report of the Resolutions of Board of Directors’ Meeting No.1/2019 To President The Stock Exchange of Thailand The Board of Directors of Cal-Comp
entitled for subscription of new ordinary shares (Record Date) and Subscription period To: The President of the Stock Exchange of Thailand Enclosure: 1. No. For. 19/2018 Capital Increase, Waiver from
the Securities and Exchange Act B.E. 2535 (1992), as amended by the Securities and Exchange Act (No.4) B.E. 2551 (2008), and Section 100, Section 109 and Section 117 of the Securities and Exchange Act
Section 16/6 of the Securities and Exchange Act B.E. 2535 (1992), as amended by the Securities and Exchange Act (No.4) B.E. 2551 (2008) , and Section 100, Section 109 and Section 117 of the Securities and