the three-month period Ended March 31, 2019, which was audited by the auditor With significant operational results as follows Company performance For the three-month period Ended March 31, 2019, with a

. OCMSET / 1905/002 May 8, 2019 Subject: Clarification of the operating results for the three-month period of 2019, change of rate more than 20 percent Dear Director and Manager the Stock Exchange of

., Nongeiroon, Banbueng, Chonburi, Thailand 20220 Tel. 038-160707 Fax. 033-047348 www.ndrubber.co.th No. NDR005/2019 10 May 2019 Subject: Management Discussion and Analysis (MD&A) Report for the Three Month

(352.18%), due to GWM has become the Company Group’s subsidiary since March 2018, only its 1 month turnover is able be combined with the quarterly financial statement ended on 31 March 2018, but the

: EIC-AD020/2019 15 May 2019 Subject: Management Discussion and Analysis for the Performance for Three-Month Period ended 31 March 2019 To: President The Stock Exchange of Thailand The Board of Directors

Microsoft Word - ผลฆารà¸flำ๕ฎิฎà¸⁄าฎQ1-2562_ENG.doc (Translated) May 14, 2019 Ref FSS 090/2019 Subject: Clarification of Company’s Operating Result for the three-month period

Company”) would like to summarize its Q2/2019 operating performance for the period ending 30 June 2019 as follows: For the three-month, the Company and its subsidiaries’ posted a net loss of Baht 9.58

: EIC-AD033/2019 13 August 2019 Subject: Management Discussion and Analysis for the Performance for Six-Month Period ended 30 June 2019 To: President The Stock Exchange of Thailand The Board of Directors

: EIC-AD033/2019 13 August 2019 Subject: Management Discussion and Analysis for the Performance for Six-Month Period ended 30 June 2019 (Added Information) To: President The Stock Exchange of Thailand The

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