1 27 May 2019 Subject: Explanation of operating result in the financial statement ended 31 March 2019 To: President of the Stock Exchange of Thailand With reference to the financial statement of FY

No. U.SET 002/2018 January 8, 2018 Subject: Setting up a new subsidiary To : The President The Stock Exchange of Thailand U City Public Company Limited (the “Company”) would like to inform you that

(Translation) (Translation) IR 024/18 November 14, 2018 President and Director The Stock Exchange of Thailand Subject : To explain the reasons on the company’s net profit (net loss) more than 20

(Translation) (Translation) IR 014/19 November 12, 2019 President and Director The Stock Exchange of Thailand Subject : To explain the reasons on the company’s net profit (net loss) more than 20

the Stock Exchange of Thailand (SET) on 11 September 2020. 08/07/2022 agreed to comply with civil penalties determined by the Civil Penalty Committee as follows :     - a

and Managers, The Stock Exchange of Thailand The Board of Directors’ Meeting of Halcyon Technology PLC. (the “Company”) had passed the resolution to convene the 2020 Annual General Meeting of

. Securities Code: TKT 2. Date of action resulting in reporting obligation: 24 November 2020 2.1 () Acquisition ( ) Disposition ( ) Through the Stock Exchange of Thailand via a securities company: Thai

(Translation) No.Tor.For. 24/2018 21 December 2018 Subject : To sell common shares of Waseda Education (Thailand) Company Limited to connected person. Attention : The President of the Stock Exchange

571,515,007 shares at the value of Baht 1 per share. Number of shares sale : 249,666 shares. Price per share : Baht 65.52 , by selling via the Stock Exchange of Thailand. The sale price is the agreed price

ที่ กบร No. Kor Bor Ror. 022/2017 August 10, 2017 President The Stock Exchange of Thailand Re : The reduction of credit guarantee to International Commercial Coordination (Hong Kong) Limited Dear Sir