identification and verification procedure that is both appropriate and reliable; - Upon any material change in a transaction, or any reason to suspect such information, to verify, to review, and to collect

Glass Public Company Limited Page 2/2 Management Discussion and Analysis Total Expenses (Million Baht) Quarterly Change Six-month End June 30, Change 2/2018 2/2017 % 2018 2017 % Cost of goods sold 367.3

วันที่ 15 ตุลาคม 2545 1 NO. (SUTHA-SET) 016/2019/EN 14 August 2019 Subject : Clarification of Q2/2019 the total revenues and the Net profit change more than 20% To : The President of the Stock

15 May 2019 Subject: Management Discussion and Analysis for the 3-Month Period Ended March 31, 2019 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology Public Company Limited

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