The Stock Exchange of Thailand T.C.J. Asia Plc. and subsidiaries would like to clarify the operating result of the Company for the year 2017 as follow; Consolidated financial statement Operating

period of last year The explanation for Company’s Operation change from same period more than 20% To : The President, The Stock Exchange of Thailand T.C.J. Asia Public Company Limited (“TCJ”) and its

Operation change from same period more than 20% Attention : The President The Stock Exchange of Thailand T.C.J. Asia Public Company Limited (“TCJ”) and its subsidiaries herewith submit the clarification of

of last year The explanation for Company’s Operation change from same period more than 20% To The President The Stock Exchange of Thailand T.C.J. Asia Public Company Limited (“TCJ”) and its

1 - TRANSLATION - KT/KP (Q-CON) 007/2018 November 1st , 2018. Attention Managing Director The Stock Exchange of Thailand Subject : Management Discussion and Analysis the third quarter ended 30

period of last year The explanation for Company’s Operation change from same period more than 20% To The President The Stock Exchange of Thailand T.C.J. Asia Public Company Limited (“TCJ”) and its

1 - TRANSLATION - KT/PB (Q-Con) 004/2019 February 4,2019. Attention Managing Director The Stock Exchange of Thailand Subject : Management Discussion and Analysis for year 2018 Quality Construction

Palmer & Turner (Thailand) Ltd MJD.IR.012/2562 13 November 2019 Subject : Clarification of the operating result for the year 2019 ended September 30, 2019 To : Director and Manager The Stock Exchange

MJD.IR.005/2020 15 May 2020 Subject : Clarification of the operating result for the year 2020 ended March 31, 2020 Attention : Director and Managing Director The Stock Exchange of Thailand Major

MJD.IR.011/2020 14 August 2020 Subject : Clarification of the operating result for the year 2020 ended June 30, 2020 Attention : Director and Managing Director The Stock Exchange of Thailand Major