No. WICE 021/2020 February 28,2020 Subject Report the resolution of the Board of Directors To : President The Stock Exchange of Thailand Attachment 1. Information Memorandum regarding the Proposed

into Material Transactions Deemed as Acquisition or Disposal of Assets, and the Notification of the Board of Governors of the Stock Exchange of Thailand, Re: Disclosure of Information and Other Acts of

-Translation- 25 February 2019 Subject : The establishment of Vanachai Logistics Company Limited To : President The Stock Exchange of Thailand According to the meeting of board committee of Vanachai

- Translation - LPH/SET/2017/019 August 11, 2017 To : President The Stock Exchange of Thailand The Board of Directors’ Meeting of Ladprao General Hospital Public Company Limited (the “Company” or

right to attend the Meeting and still be omitted a dividend payment as schedule. Attention The President of the Stock Exchange of Thailand The Stock Exchange of Thailand Eastern Technical Engineering

No. WHAUP-CS014-2562 1 8 August 2019 Re Share Acquisition in Duong River Surface Water Plant JSC in Vietnam Dear President The Stock Exchange of Thailand WHA Utilities and Power Public Company

( Translation ) Ref. No. HARN 011/2019 14 November 2019 Subject: Notification about Related Parties Transaction To: Director and Manager The Stock Exchange of Thailand (“the SET”) The committee of

recycled product, in Vientiane, Lao PDR (Vientiane Waste Management : VWM). To: The President The Stock Exchange of Thailand Enclosure: Information Memorandum on the Acquisition of Assets of UAC Global PLC

1/6 -Translation- No. KC 019/2562 4 September 2019 Subject: Notification on the resolution of the Board of Director Meeting Re: The land disposal of K.C. Park Ville (Zone B) To: President The Stock

of the Ministry of Natural Resources and Environment, Securities and Exchange Commission, and Stock Exchange of Thailand, with the pilot period of 2 months from May to June 2020. There were 10