1 Ref: CK-18-0000-AFD(AC)-L-0039 August 14, 2018 Subject: Clarification on Operating Result and Financial Position for the six-month ended June 30, 2018 Attention: President The Stock Exchange of

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14 November 2018 Subject: Management Discussion and Analysis for the Nine-Month Period Ended September 30, 2018 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology Public

Attention: President The Stock Exchange of Thailand CH. Karnchang Public Company Limited (“the Company”) and its subsidiaries would like to clarify the consolidated operating result and financial position for

Management discussion of three-month operating result ending March 31, 2020 To The President of the Stock Exchange of Thailand Matching Maximize Solution Public Company Limited (the Company) would like to

@halcyon.co.th No. CS-2563/014 14 August 2020 Subject: Management Discussion and Analysis for the 6-Month Period Ended 30 June 2020 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology

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26 October 2020 To: The President The Stock Exchange of Thailand Re: Q3-2020 Operating Results We, Delta Electronics (Thailand) Public Company Limited (the “Company”) would like to notify the

No. INGRS066 30 March 2021 Subject : Management Discussion & Analysis (MD&A) for the consolidated financial statements for the financial year ended 31 January 2021 To : The President The Stock

the 2nd Quarter of 2017 Ending June 30, 2017 To : The President The Stock Exchange of Thailand The Board of Directors meeting of Ratchaphruek Hospital Public Company Limited (the Company) No. 4/2017