, The Office of The Securities and Exchange Commission President, The Stock Exchange of Thailand Board of Directors and Securities Holders of Glow Energy Public Company Limited Refers to: Tender Offer for

1 -Translation- Ref :IR 62/023 December 23, 2019 Subject: Change in Shareholding Structure of Subsidiary Company (edit) To: President, The Stock Exchange of Thailand T.K.S. Technologies Public

1 -Translation- Ref :IR 62/023 December 23, 2019 Subject: Change in Shareholding Structure of Subsidiary Company (edit no.2 ) To: President, The Stock Exchange of Thailand T.K.S. Technologies Public

October 30, 2020 Subject: The Management Discussion and Analysis for the second quarter ended June 30, 2020 To: President The Stock Exchange of Thailand Well Graded Engineering Public Company Limited (“the

October 30, 2020 Subject: The Management Discussion and Analysis for the year ended 31st December 2019 To: President The Stock Exchange of Thailand Well Graded Engineering Public Company Limited (“the

November 13, 2020 Subject: The Management Discussion and Analysis for the third quarter ended September 30, 2020 To: President The Stock Exchange of Thailand Well Graded Engineering Public Company Limited

person. (Amendment) Attention : The President of the Stock Exchange of Thailand Far East DDB Public Company Limited (“Company”) would like to inform the resolutions of the Board of Directors Meeting of the

1 No. CC20190504ELE May 14, 2019 Subject Report of the Resolutions of Board of Directors’ Meeting No.2/2019 To President The Stock Exchange of Thailand The Board of Directors’ meeting of Cal-Comp

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M.D. 042/2020 February 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