May 14, 2020 Reference no. RWI /BKK/018/2563 Subject : Management’s Discussion and Analysis of Business Operations of the First Quarter of 2020 To The Director and Manager of the Stock Exchange of

M.D. 088/2020 June 12, 2020 Subject : Disclosure of the information connected transactions To : President of the Stock of Exchange of Thailand Kang Yong Electric Public Company Limited hereby notify

-public information obtained while performing duty as {X1} advisor and president. With the referral from the Stock Exchange of Thailand, the SEC's probe found that on May 7, 2010 {A}, as the authorized

1/2 (Translation) Ref. HPIR 004/2018 February 28, 2018 Subject : Management Discussion and Analysis for the year ended December 31, 2017 To : The President The Stock Exchange of Thailand Duplicate

10th May, 2018 Subject: Management Discussion and Analysis (MD&A) of the financial as at and for three months’ period ending 31st March, 2018 Attention: President The Stock Exchange of Thailand P.C.S

the Year as at 31 December 2017 To The President The Stock Exchange of Thailand We, ZEN Corporation Group Public Company Limited (“the Group”), are please to inform you our management discussion and

. DOD2019/004 February 20, 2019 Subject: Management’s discussion and analysis of the Company’s operating results for the year 2018 period To: President The Stock Exchange of Thailand DOD Biotech Public

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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

February 26, 2019 Subject: Management Discussion and Analysis For the year ended December 31, 2018 To: The President, The Stock Exchange of Thailand Home Pottery Public Company Limited (“The Company