MDA Q2_2017 (Eng.) August 10, 2017 Subject : Interim Management Discussion and Analysis of Q2/2017 Attention : President of The Stock Exchange of Thailand We attach herewith the financial statements

MDA Q3_2017 (Eng.) November 8, 2017 Subject : Interim Management Discussion and Analysis of Q3/2017 Attention : President of The Stock Exchange of Thailand We attach herewith the financial statements

MDA 2017 (Eng.) February 20, 2018 Subject : Yearly Management Discussion and Analysis of 2017 Attention : President of The Stock Exchange of Thailand We attach herewith the financial statements of

1 Translation CEN 013-2019 August 14, 2019 Subject Management discussion and analysis for business operation Quarter 2-2019 To The Manager and President The Stock Exchange of Thailand Operating

MDA Q2_2018 (Eng.) August 7, 2018 Subject : Interim Management Discussion and Analysis of Q2/2018 Attention : President of The Stock Exchange of Thailand We attach herewith the financial statements

1 Translation CEN 031-2018 August 14, 2018 Subject : Management Discussion and Analysis for business operation of Quarter 2-2018 To : The Manager and President The Stock Exchange of Thailand Business

MD&A Q4_2019 (Eng ) February 19, 2020 Subject : Yearly Management Discussion and Analysis of 2019 Attention : President of The Stock Exchange of Thailand We attach herewith the financial statements

Microsoft Word - MD&A Q1_2020 (Eng ) May 8, 2020 Subject : Interim Management Discussion and Analysis of Q1/2020 Attention : President of The Stock Exchange of Thailand We attach herewith the

วันที่ 14 สิงหาคม 2550 DEMCO Public Company Limited No. Demco AC003/2020 August 14, 2020 Subject : The company’s operating result for the quarter 2/2020 To : The president, The Stock Exchange of

Translation DIMET AC 2008/001 August 31, 2020 Subject Management Discussion and Analysis for business operation year 2019 (July 1, 2019 - June 30, 2020) To The Manager and President The Stock