/2018 22 nd February 2018 Subject : The explanation of operating results for the year 2017 Attention : The President The Stock Exchange of Thailand Dear Sir, For the year ended 31 st December 2017, Laguna

หนังสือแสดงการรับทราบความผิด 28 February 2018 Subject : Management Discussion and Analysis of the year ended 31 December 2017 Attn. : Director and Manager The Stock Exchange of Thailand Encls. : A

25 April 2019 To: The President The Stock Exchange of Thailand Re: Q1-2019 operating results We, Delta Electronics (Thailand) Public Company Ltd, would like to notify the Company’s Q1-2019 (Jan-Mar

/4   Ref: J61/011 12 November 2018 Subject: Management Discussion and Analysis, 3rd Quarter Ending 30 September 2018 To: President The Stock Exchange of Thailand Regarding to JAS Asset Public Company

October 28, 2019 To: The President The Stock Exchange of Thailand Re: Q3-2019 operating results We, Delta Electronics (Thailand) Public Company Ltd, would like to notify the Company’s Q3-2019 (Jul

November 14, 2019 Re : Approval of Acquisition of Assets To : The President The Stock Exchange of Thailand The Borad of Directors’ Meeting of World Corporation Public Company Limited (“the Company”) No.8

Assets (revised) To : The President The Stock Exchange of Thailand The Board of Directors’ Meeting of World Corporation Public Company Limited (“the Company”) No.8/2019 Held on November 14, 2019 at 14.00

November 12, 2004 1/3 No: SN. 130/2019 21 November 2019 Subject: Clarification of Operating Results and Financial Position of the year ended September 30, 2019 Attention: President The Stock Exchange

Assets N Hospital Company Limited with additional 16.67 percent To : The President The Stock Exchange of Thailand The Board of Directors’ Meeting of World Corporation Public Company Limited (“the Company

ADMS 30/07 1/2 RC 03/20 4 February 2020 Subject : Report on the Company’s operating results for the year 2019 Attention : President of the Stock Exchange of Thailand Jasmine International Public