President The Stock Exchange of Thailand Dear Sir, With reference to the Minutes 8/2017 of the Company Directors’ meeting dated August 22, 2017, the Board resolved to approve the audited financial statements

October 2017 Subject: Notification of the Board of Directors No. 9/2017 on the Company Investment in SUT Hydro Company Limited To: The President The Stock Exchange of Thailand Pursuant Following Hydrotek

ที่ กม Translation No. Gor.Mor. 42/2560 October 10, 2017 President The Stock Exchange of Thailand Dear Madam, Approval for Buying Land for Investment Purposes The Board Meeting of O.C.C. Public

ที่ กตพ Ref. DBP.045 / 2019 March 19, 2019 Subject : Information Regarding Acquisition of Machinery for Fiber Cement Tile Production (NT-11) To : President The Stock Exchange of Thailand The Board of

M.D.137 / 2019 June 26, 2019 Subject : Information on Connected Transactions Dear : President of the Stock Exchange of Thailand Kang Yong Electric Public Company Limited, hereby informs you the

and Managers The Stock Exchange of Thailand According to the resolution of the meeting of the Board of Directors No.5/2018 of Wattanapat Hospital Trang Public Company Limited (“the Company”) held on 7

of shareholding proportion by buying of 23% newly issued common shares of Ekachai International Co., Ltd., which is Ekachai Medical Care PCL. subsidiary. To : Directors and Manager The Stock Exchange

researches beneficial to capital market development. The SEC therefore determines to promote these works and inspire stakeholders in capital market industry, including the Stock Exchange of Thailand

undertaking as well as to protect investors? best interest.?The four key areas are:?1. Provisions on Stock Exchange: The proposed revisions include (1) granting the power to approve the rules on securities

of Director’s Meeting No.4/2019 held on August 8, 2019 about the expansion of Wattanapat Samui Hospital project, increasing licensed beds from twenty nine beds to no more than 59 licensed beds