analysis for the three-month period ended June 30, 2019 To: Director and Manager of the Stock Exchange of Thailand Referring to the submission of reviewed financial statements for quarter 2/2019 of Wiik

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

results for the six-month period of 2019, change of rate more than 20 percent Dear Director and Manager The Stock Exchange of Thailand According to the resolution of the Board of Directors of DOD Biotech

Microsoft Word - EKH_62-027_SET-MD&A_620813_Q2-62_EN   EKH/CS/2019/027 13 August 2019 Subject: Management Discussion and Analysis for the Second Quarter 2019 results To Directors and Manager The

and analysis for the period ended March 31, 2018 To Director and Manager of the Stock Exchange of Thailand Referring to the submission of the reviewed financial statements for quarter 1/2018 of Wiik

วันที่ 25 กุมภาพันธ์ 2558 May 11, 2018 Subject: Management’s Discussion and Analysis for the 3 months period ended March 31, 2018 Attention: Director and Manager The Stock Exchange of Thailand LDC

Ref. No. 1805/025EN May 14, 2018 Subject Management Discussion and Analysis for Q1/2018 (Ending March 31, 2018) To Director and Manager of the Stock Exchange of Thailand Ubis (Asia) Public Company

นาสูความเปนเลิศ ทั้งในดานพาณิชยและคุณภาพผลิตภัณฑอยางเปนมืออาชพี” May 15, 2018 Subject: Clarification on the cause of changes in operating results over 20 percent. To: Director and Manager The

Palmer & Turner (Thailand) Ltd MJD.IR.014/2561 15 May 2018 Subject : Clarification of the operating result for the year 2018 ended March 31, 2018 To : Director and Manager The Stock Exchange of

1 Translation CEN 024-2018 May 15, 2018 Subject : Management Discussion and Analysis for quarter 1-2018 To : The Manager and President Business operation for 3 month period as ended March 31, 2018 of