Palmer & Turner (Thailand) Ltd MJD.IR.003/2561 28 February 2018 Subject : Clarification of the operating result for the year 2017 ended December 31, 2017 To : Director and Manager The Stock Exchange

Palmer & Turner (Thailand) Ltd MJD.IR.002/2563 25 February 2020 Subject : Clarification of the operating result for the year 2019 ended December 31, 2019 To : Director and Manager The Stock Exchange

Palmer & Turner (Thailand) Ltd MJD.IR.029/2017 13 November 2017 Subject : Clarification of the operating result for the year 2017 ended September 30, 2017 To : Director and Manager The Stock Exchange

Palmer & Turner (Thailand) Ltd MJD.IR.003/2562 28 February 2019 Subject : Clarification of the operating result for the year 2018 ended December 31, 2018 To : Director and Manager The Stock Exchange

Palmer & Turner (Thailand) Ltd MJD.IR.009/2562 14 May 2019 Subject : Clarification of the operating result for the year 2019 ended March 31, 2019 To : Director and Manager The Stock Exchange of

Palmer & Turner (Thailand) Ltd MJD.IR.010/2562 13 August 2019 Subject : Clarification of the operating result for the year 2019 ended June 30, 2019 To : Director and Manager The Stock Exchange of

Palmer & Turner (Thailand) Ltd MJD.IR.014/2561 15 May 2018 Subject : Clarification of the operating result for the year 2018 ended March 31, 2018 To : Director and Manager The Stock Exchange of

Palmer & Turner (Thailand) Ltd MJD.IR.016/2561 14 August 2018 Subject : Clarification of the operating result for the year 2018 ended June 30, 2018 To : Director and Manager The Stock Exchange of

Palmer & Turner (Thailand) Ltd MJD.IR.018/2561 13 November 2018 Subject : Clarification of the operating result for the year 2018 ended September 30, 2018 To : Director and Manager The Stock Exchange

Thailand : the record of listed companies with corporate sustainable development "Thai sustainability Investment 2022" included: SET and mai listed companies passed the assessment conducted by the Stock