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Attention: President The Stock Exchange of Thailand Regarding to JAS Asset Public Company Limited (“the Company”) Board of Meeting No.4/2020 on 15 May 2020, the resolution to certify the Company’s financial

period ended June 30, 2020 To: Director and Manager of the Stock Exchange of Thailand Referring to the submission of the reviewed financial statements for quarter 2/2020 of WIIK Public Company Limited

Page 1 of 4 No. RJH – SET 9/2020 10 August 2020 Subject : Management’s Discussion and Analysis for the Second Quarter of 2020 To : The President The Stock Exchange of Thailand Rajthanee Hospital

EKH/CS/2020/030 11 August 2020 Subject: Management Discussion and Analysis for the Second Quarter 2020 results To Directors and Manager The Stock Exchange of Thailand Ekachai Medical Care Public

Page 1 of 4 No. RJH – SET 7/2020 11 May 2020 Subject : Management’s Discussion and Analysis for the First Quarter of 2020 To : The President The Stock Exchange of Thailand Rajthanee Hospital Public

- Translation - Ref: IR61/003 22 February 2018 Subject: Acquisition of Shares in of Phoenix Insurance (Thailand) Public Company Limited (Edited) Attention: President The Stock Exchange of Thailand

of the Stock Exchange of Thailand Seamico Securities Public Company Limited and its subsidiaries (“The Company”) would like to report operating result that has been audited by our auditor for the

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