Acc. 005/2018 May 10, 2018 To: The President The Stock Exchange of Thailand Subject: Management discussion and analysis (MD&A) for Quarter 1/2018 Dear Sir, S. Khonkaen Foods Public Company Limited or

the Quarter ended March 31, 2018 To : Director and Manager Stock Exchange of Thailand Abico Holdings Public Company Limited would like explanation about the Company’s financial performance and operation

73 1 / 4 Ref. MD 016/2018 10th May 2018. Subj Management Discussion and Analysis (MD&A) Q1/2018 Dear Managing Director of Stock Exchange of Thailand We, Patum Rice Mill and Granary Public Company

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

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

Registration No. : 0107535000371 No. L001/2019 20th February 2019 Subject : The explanation of operating results for the year 2018 Attention : The President The Stock Exchange of Thailand Dear Sir, For the year

-9320 1 Ref: PCL 2019/003 February 20, 2019 Subject: Management Discussion and Analysis Yearly Ended 31 December 2018 To: The President of the Stock Exchange of Thailand Panjawattana Plastic Public

. 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

Ref. No. 1902-009EN February 21, 2019 Subject: Operating Result Clarification for the year 2018 (Ending December 31, 2018) To: Director and Manager of the Stock Exchange of Thailand Ubis (Asia

-4124 MMS-AC62/004 February 22, 2019 Subject Management discussion on 2018 operating results To The President of Stock Exchange of Thailand For 2018 operating performance, which was audited by the