Ref: ACC6405/001 March 12, 2021 Subject Clarification of the operating results for the quarter 1/2021 ended March 31, 2021 Attention: Director and Manager The Stock Exchange of Thailand According to

1 Ref : JSP/18/02/03 28 February 2018 Subject : Report the operating result for the year ended December 31, 2017 To : The Director and Manager The Stock Exchange of Thailand J.S.P. Property Public

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Ref. No. 1902-009EN February 21, 2019 Subject: Operating Result Clarification for the year 2018 (Ending December 31, 2018) To: Director and Manager of the Stock Exchange of Thailand Ubis (Asia

หนังสือแสดงการรับทราบความผิด 27 February 2020 Subject : Management Discussion and Analysis of the year ended 31 December 2019 Attn. : Director and Manager The Stock Exchange of Thailand Encls. : A

year ended May 31, 2017 (audited). To: Director and Manager The Stock Exchange of Thailand World Corporation Public Company Limited ("the Company") would like to report the operating results for the year

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: Clarification for the three month period ended June 30, 2017 operating results. To Director and Manager of the Stock Exchange of Thailand Referring to the submission of the reviewed financial statements for

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

1 Ref : JSP/17/08/02 15 August 2017 Subject : Report the operating result for the quarter 2 Ending June 30, 2017 To : The Director and Manager The Stock Exchange of Thailand J.S.P. Property Public