responsibility for its accuracy, nor be held liable for any loss or damages arising from or related to its use. Notification of the Securities and Exchange Commission No. KorNor. 23/2544 Re: Rules, Conditions and

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

. 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

Translation CEN 003-2018 February 23, 2018 Subject : Management Discussion and Analysis for business operation of year 2017 To : The Manager and President The Stock Exchange of Thailand Business

31, 2019 To: Director and Manager The Stock Exchange of Thailand The Board of Director’s meeting No. 3/2019 of General Engineering Public Company Limited (“the Company” ) held on May 14, 2019 has

1 Translation CEN 012-2019 May 14, 2019 Subject Management discussion and analysis for business operation Quarter 1-2019 To The Manager and President The Stock Exchange of Thailand For 3 months

Acc. 004/2019 August 8, 2019 To: The President The Stock Exchange of Thailand Subject: Management discussion and analysis (MD&A) for Quarter 2/2019 Dear Sir, S. Khonkaen Foods Public Company Limited

ที่ กบร No. Kor Bor Ror. 016/2018 September 19, 2018 President The Stock Exchange of Thailand Re : Transaction to purchase assets from connected party Dear Sir, Thai Wacoal Public Company Limited

Exchange of Thailand Ubis (Asia) Public Company Limited (“the Company”) would like to clarify on operating results and the financial position had varied over 20 percent for Q3/2018 ending on September 30