Ref.No.1905/026EN July 16, 2019 Subject Inform about The Connected Transaction (Amendment) Attention President of the Stock Exchange of Thailand According to the Board of Directors Meeting No.9/2019

October 11, 2019 Re: Clarification of the operating results of company and its subsidiaries for the year ended as at December 31, 2018 To: Boards and Managements The Stock Exchange of Thailand K.C

According to the referral from the Stock Exchange of Thailand (SET) and the SEC’s further investigation, Warot and Jeeranan, former EY assistant auditors, were involved in irregular securities and

15, 2017 Subject: MD&A for the financial statements of the 1st quarter of fiscal year 2017 ended as of March 31, 2017 To: The President The Stock Exchange of Thailand Aapico Hitech Public Company

วันที่ 14 สิงหาคม 2550 DEMCO Public Company Limited No. Demco AC001/2019 February 28, 2019 Subject : The company’s operating result of the year 2018 To : The president, The Stock Exchange of Thailand

February 28, 2019 Subject: Managing Discussion and Analysis for Year2018 To: Managing Director The Stock Exchange of Thailand The company would like to report to operation results for the company and

SBN 007/2019 May 14, 2019 Subject : Operating Result for the first quarter of 2019 To : The Managing Director, The Stock Exchange of Thailand Sabina Public Co.,Ltd. Would like to clarify the

วันที่ 14 สิงหาคม 2550 DEMCO Public Company Limited No. Demco AC002/2019 May 14, 2019 Subject : The company’s operating result for the 1st quarter of year 2019 To : The president, The Stock Exchange

May 15, 2019 Subject: Managing Discussion and Analysis for Q1/2019 To: Managing Director The Stock Exchange of Thailand The company would like to report to operation results for the company and

Exchange of Thailand. Demco Public Company Limited would like to inform you herewith the company result for the 2nd quarter of year 2019 according to the company’s consolidated financial statement ended June