the Year as at 31 December 2017 (revised) To The President The Stock Exchange of Thailand We, ZEN Corporation Group Public Company Limited (“the Group”), are please to inform you our management

. DOD2019/004 February 20, 2019 Subject: Management’s discussion and analysis of the Company’s operating results for the year 2018 period To: President The Stock Exchange of Thailand DOD Biotech Public

Public Company Limited 1 | P a g e November 13, 2019 Subject: Management discussion and analysis of the operating results for the quarter 3/2019 Attn: President The Stock Exchange of Thailand Please find

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

Director and Manager of the Stock Exchange of Thailand Ubis (Asia) Public Company Limited (“the Company”) would like to clarify on the performance and the financial status which had changed over 20 percent

สรุปผลการดำเนินงานของบจ -Translation- August 15th, 2017 Subject: Management Discussion and Analysis Quarter 3 Ending 30 Jun 2017 (Edited Template) To: Managing Director The Stock Exchange of Thailand

Stock Exchange of Thailand Please find the reviewed Financial Statement for the Quarter 2/2017 ending 30 June 2017 which had been reviewed by Certified Auditor and has been approved by the Board of

Ref. No. 1711/056EN November 8, 2017 Subject Management Discussion and Analysis for Q3/2017 (Ending September 30, 2017) To Director and Manager of the Stock Exchange of Thailand Ubis (Asia) Public

Stock Exchange of Thailand Please find the reviewed Financial Statement for the Quarter 3/2017 ending 30 September 2017 which had been reviewed by Certified Auditor and has been approved by the Board of

December 31, 2017) To Director and Manager of the Stock Exchange of Thailand Ubis (Asia) Public Company Limited (“the Company”) would like to clarify on the performance and the financial status for the year