subsidiary To : President The Stock Exchange of Thailand JCK International Public Company Limited (“the Company”) would like to notify that the Board of Directors’ Meeting of the Company No 1/2020, held on

Mr. Surin Banyongponglert From 25 July 2017 to 9 August 2017 (total 11 working days), Mr. Surin Banyongponglert traded PICO shares via his 4 trading accounts on a continued basis with an intent to

16 April 2020 Subject: Notification of Acquisition of shares of Trans.Ad Solutions Co.,Ltd. Attention: Director and Manager The Stock Exchange of Thailand (SET) The Board of Directors’ meeting of

of Shares of Trans.Ad Solutions Co., Ltd. (Added) Attention: Director and Manager The Stock Exchange of Thailand (SET) The Board of Directors’ meeting of Nation International Edutainment Public Company

Discussion and Analysis for Year Ending December 31, 2019 To : The President The Stock Exchange of Thailand The Board of Directors meeting of Ratchaphruek Hospital Public Company Limited (the Company) No. 1

Analysis Quarterly Ending March 31, 2019 To : The President The Stock Exchange of Thailand The Board of Directors meeting of Ratchaphruek Hospital Public Company Limited (the Company) No. 2/2019 dated May 11

-9320 1 Ref: PLC 2019/009 August 8, 2019 Subject: Management Discussion and Analysis Quarter 2 Ended 30-June-2019 To: The President of the Stock Exchange of Thailand Panjawattana Plastic Public Company

and Analysis Quarterly Ending June 30, 2020 To : The President The Stock Exchange of Thailand The Board of Directors meeting of Ratchaphruek Hospital Public Company Limited (the Company) No. 4/2020

Analysis Quarterly Ending March 31, 2020 To : The President The Stock Exchange of Thailand The Board of Directors meeting of Ratchaphruek Hospital Public Company Limited (the Company) No. 3/2020 dated May 9

Clarification of the three-month operating results ending on 31 March 2018 To The President of the Stock Exchange of Thailand Matching Maximize Solution Public Company Limited (the Company) would like to clarify