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

informed accordingly. Sincerely yours, ( Mr. Tradsin Chongussayakul ) Chief Executive Officer and Acting Managing Director T Engineering Corporation Public Company Limited

Microsoft Word - 2017_Q3 Results Notification letter_English November 7, 2017 The Director and Manager The Stock Exchange of Thailand Re: Information on Third Quarter of 2017 Operating Results KCE

Managing Director Chief Executive Officer

of Baht 119.18 million, and comprehensive income (loss) in the amount of Baht 136.90 million. Please be informed accordingly. Sincerely yours, (Mr. Tradsin Chongussayakul) Chief Executive Officer and

หนังสือแสดงการรับทราบความผิด 28 February 2018 Subject : Management Discussion and Analysis of the year ended 31 December 2017 Attn. : Director and Manager The Stock Exchange of Thailand Encls. : A

relating to capital markets according to Clause 8; (3) a person to be appointed shall not be a director, executive, or employee of another company and shall not be a derivatives investment manager for any

. Sincerely yours, (Mr. Tradsin Chongussayakul) Chief Executive Officer and Acting Managing Director T Engineering Corporation Public Company Limited

for the three-month period ended March 31, 2019 To: Director and Manager of the Stock Exchange of Thailand Referring to the submission of the reviewed financial statements for quarter 1/2019 of Wiik

หนังสือแสดงการรับทราบความผิด 13 May 2019 Subject : Management Discussion and Analysis of the first quarter 2019 ended 31 March 2019 Attn. : Director and Manager The Stock Exchange of Thailand Encls