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

-TRANSLATION- 14 November 2017 Subject : Management Discussion and Analysis for Q3/2017 Attention : President The Stock Exchange of Thailand An overview of the results in the passing The performance

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

Ref. No. 1802/008EN February 20, 2018 Subject Management Discussion and Analysis for the year 2017 (Ending December 31, 2017) (Additional) To Director and Manager of the Stock Exchange of Thailand

-TRANSLATION- 28 February 2018 Subject : Management Discussion and Analysis for 2017 Attention : President The Stock Exchange of Thailand An overview of the results in the passing The performance in

-TRANSLATION- 15 May 2019 Subject : Management Discussion and Analysis for Q1/2019 Attention : President The Stock Exchange of Thailand An overview of the results in the passing The performance in

-TRANSLATION- 14 August 2019 Subject : Management Discussion and Analysis for Q2/2019 Attention : President The Stock Exchange of Thailand An overview of the results in the passing The performance in

-TRANSLATION- 15 May 2018 Subject : Management Discussion and Analysis for Q1/2018 Attention : President The Stock Exchange of Thailand An overview of the results in the passing The performance in

(Translation) Ref. No. 1808/036EN August 10, 2018 Subject: Operating Result Clarification for Q2/2018 (Ending June 30, 2018) To: Director and Manager of the Stock Exchange of Thailand Ubis (Asia

-TRANSLATION- 14 August 2018 Subject : Management Discussion and Analysis for Q2/2018 Attention : President The Stock Exchange of Thailand An overview of the results in the passing The performance in