1 / 2 No.IR.006/2020 28 February 2020 Re: Notification of the changes of the Profit and Loss Statement To: President Stock Exchange of Thailand We, T Engineering Corporation Public Company Limited

investors and have their securities listed on the Stock Exchange of Thailand (SET), while growing sustainably in accordance with good corporate governance. In addition, both parties cooperated to build a

1 At JSP 60/07/04 July 19, 2017 Subject Notifications of the connected transaction regarding the receipt of financial assistance. (Revise) To President The Stock Exchange of Thailand J.S.P. Property

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Notification of the Capital Market Advisory Board No. Tor Jor. 21/2551 Re: Rules on Connected Transactions dated 31 August 2008, and the Notification of the Board of Governors of the Stock Exchange of Thailand

lease office space for the Company and its subsidiaries. To : President The Stock Exchange of Thailand JCK International Public Company Limited (“the Company”) would like to notify that the Board of

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1 At JSP 60/07/04 July 19, 2017 Subject Notifications of the connected transaction regarding the receipt of financial assistance To President The Stock Exchange of Thailand J.S.P. Property Public