concerning Investment of Funds; “business day” means a day on which management companies are open for normal business; “Stock Exchange” means the Stock Exchange of Thailand; “provident fund with multiple

nine-month period ending 30 September 2018 To The President The Stock Exchange of Thailand We, ZEN Corporation Group Public Company Limited (“the Group”), are please to inform you our management

-months period ending 30 September 2018 (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

Ref. MD 115/2017 August 25, 2017 Re: Clarification on the Financial Performance of the Company and its subsidiaries as of Year 2015 Attn: President The Stock Exchange of Thailand We, K. C. Property

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

1 / 2 IR.017/2018 14 August 2018 Re: Notification of the changes of the Profit and Loss Statement To President The Stock Exchange of Thailand We, T Engineering Corporation Public Company Limited (the

: Explanation of Company’s Overall Operation for the Quarter 2nd of year 2020 To: Directors and Managers The Stock Exchange Market of Thailand Rhom Bho Property Public Company Limited (“the Company”) would like

1 Translation CEN 012-2020 May 15, 2020 Subject : Management discussion and analysis for business operation Quarter 1-2020 To : The Manager and President The Stock Exchange of Thailand Summarization

October 30, 2020 Subject: The Management Discussion and Analysis for the year ended 31st December 2019 To: President The Stock Exchange of Thailand Well Graded Engineering Public Company Limited (“the

Page 1 of 3 No. ACC6308/002 13 September 2020 เรื่อง Operating Results Clarification for the second quarter 2020, ended June 30 2020 เรียน Director/ Managing Director The Stock Exchange of Thailand