-Translation- 11 August 2017 Subject : The establishment of Vanachai Wood Smith Company Limited To : President The Stock Exchange of Thailand According to the meeting of board committee of Vanachai

(Translation) NEP-AC 001/2561 10 May 2018 Subject : Management Discussion and Analysis for 1st Quarter ended March 31, 2018 To : The President The Stock Exchange of Thailand Operating Result NEP

Microsoft Word - MD&A Y2018-E.doc 1 Ref: CSO. 003/2019 Date: 20th February 2019 Subject: Management Discussion and Analysis for Year Ending 31st December 2018 Attention: President The Stock Exchange

and Analysis for Year Ending December 31, 2018 To : The President The Stock Exchange of Thailand The Board of Directors meeting of Ratchaphruek Hospital Public Company Limited (the Company) No. 1/2019

Microsoft Word - MD&A Y2019-E FA.doc 1 Ref: CSO. 003/2020 Date: 19th February 2020 Subject: Management Discussion and Analysis for Year Ending 31st December 2019 Attention: President The Stock

Discussion and Analysis for Year Ending December 31, 2019 To : The President The Stock Exchange of Thailand The Board of Directors meeting of Ratchaphruek Hospital Public Company Limited (the Company) No. 1

the year ended December 31, 2019 To Director and Manager the Stock Exchange of Thailand According to the Board of Directors’ Meeting No.2/ 2 0 2 0 of DOD Biotech Public Company Limited ( “ the Company

Director and Manager of the Stock Exchange of Thailand Ubis (Asia) Public Company Limited (“the Company”) would like to clarify on the performance and the financial status which had changed over 20 percent

Stock Exchange of Thailand Dear Sir, With reference to the Minutes 11/2017 of the Company Directors’ meeting dated November 13, 2017, the Board resolved to approve the reviewed financial statements of

ที่________ - Translation - No: SN.056/2017 November 16, 2017 Subject: Clarification of Operating Results and Financial Status for 2017, ended 30 September 2017 Attention: President The Stock