COMPANY LIMITED DIMET: DIMET (SIAM) PUBLIC COMPANY LIMITED DITTO: DITTO (THAILAND) PUBLIC COMPANY LIMITED DMT: DON MUANG TOLLWAY PUBLIC COMPANY LIMITED DOD: DOD BIOTECH PUBLIC COMPANY LIMITED DOHOME: DOHOME

: Clarification for the three month period ended June 30, 2017 operating results. To Director and Manager of the Stock Exchange of Thailand Referring to the submission of the reviewed financial statements for

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.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.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

T.K.S. TECHNOLOGIES 11 August 2020 Re: Management Discussion and Analysis for Quarter 2/2020 To: President The Stock Exchange of Thailand T.K.S. Technologies Public Company Limited (“TKS”) and its

on the misconducts of {A}, an investor contact of Siam City Securities Co., Ltd. , stating that {A} sent securities and derivatives trading orders continuously in large amount without evidence of

the Agenda of the Extraordinary General Meeting of the Shareholders No. 1/2019. (Amendment 3) To : The Directors and Managing Director. The Stock Exchange of Thailand. The Board of Director‟s Meeting of

) Attention : Director and Manager of the Stock Exchange of Thailand I.C.C. International Public Company Limited would like to report the resolutions of the Board of Directors’ Meeting # 11/2560 held on March

Acquisition of Assets of IGEN Engineering Company Limited ("IGE") (Revised) To: Director and Manager The Stock Exchange of Thailand The resolution of the Board of Directors’ Meeting No.3/2018 of Dimet (Siam