1 Ref : JSP/17/08/02 15 August 2017 Subject : Report the operating result for the quarter 2 Ending June 30, 2017 To : The Director and Manager The Stock Exchange of Thailand J.S.P. Property Public

president, The Stock Exchange of Thailand. Demco Public Company Limited would like to inform you herewith the company result of the 3rd quaternary for the year 2017 according to the company’s financial

-9320 1 Ref: PLC 2017/017 November 16, 2017 Subject: Management Discussion and Analysis Quarter 3 Ended 30-September-2017 (Additional) To: The President of the Stock Exchange of Thailand Panjawattana

วันที่ 14 สิงหาคม 2550 DEMCO Public Company Limited No. Demco AC002/2018 February 28, 2018 Subject : The company’s operating result of the year 2017. To : The president, The Stock Exchange of

31, 2019) To Director and Manager of the Stock Exchange of Thailand Ubis (Asia) Public Company Limited (“the Company”) would like to clarify on the performance and the financial status had varied over

1 Translation CEN 012-2019 May 14, 2019 Subject Management discussion and analysis for business operation Quarter 1-2019 To The Manager and President The Stock Exchange of Thailand For 3 months

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

Microsoft Word - MD&A_Q2_2019_EN 14.8.19 1 NPPG.050/2562 August 14th, 2019 Subject Management’s analysis for the 2nd quarter of 2019 Attn. The President The Stock Exchange of Thailand Management’s

Justification_E_1-61 NO. AC. 002/2018 15 May 2018 Subject: Clarification of changes in operating performance of more than 20% To: The President of the Stock Exchange of Thailand M. K. Real Estate

Ref. PDI/BK-BS-056/2018 8th August 2018 Re: Management Discussion and Analysis (MD&A) For the 2Q 2018 and 1H 2018 To: President The Stock Exchange of Thailand Due to depletion of Mae Sod Mine’s