Law on Derivatives ; (17) derivatives business operator under the Law on Agricultural Futures Trading; (18) international financial institution; (19) Deposit Protection Agency; (20) Stock Exchange of

; (17) derivatives business operator under the Law on Agricultural Futures Trading; (18) international financial institution; (19) Deposit Protection Agency; (20) Stock Exchange of Thailand; (21) juristic

) Stock Exchange of Thailand; (21) juristic person in the category of statutory corporation; (22) juristic person whose shares are held by the investors under (1) to (21), in aggregate, exceeding seventy

Ref. No. 1908/028EN June 13, 2019 Subject Management Discussion and Analysis for Q2/2019 (Ending June 30, 2019) To Director and Manager of the Stock Exchange of Thailand Ubis (Asia) Public Company

August 28, 2019 Re: Clarification of the operating results of company and its subsidiaries for the year ended December 31, 2017 To: Boards and Managements The Stock Exchange of Thailand K.C. Property

1/4 August 28, 2019 Re: Clarification of the operating results of company and its subsidiaries for the year ended December 31, 2017 To: Boards and Managements The Stock Exchange of Thailand K.C

- Translation – Ref. EIC-AD026/2018 August 10, 2018 Subject Management Discussion and Analysis for the Six-Month Period Performance Ending June 30, 2018 To President The Stock Exchange of Thailand The Board of

1/5 Ref. 4/2019 January 11, 2019 Subject : The acquisition of investment in Ramkhamhaeng Hospital PCL. To : Director and Manager The Stock Exchange of Thailand The Board of Directors Meeting

October 11, 2019 Re: Clarification of the operating results of company and its subsidiaries for the nine month periods ended September 30, 2018 To: Boards and Managements The Stock Exchange of

October 11, 2019 Re: Clarification of the operating results of company and its subsidiaries for the year ended as at December 31, 2018 To: Boards and Managements The Stock Exchange of Thailand K.C