1 / 4 No.IR.002/2018 22 February 2018 Re: Notification of the changes of the Profit and Loss Statement To: President Stock Exchange of Thailand We, T Engineering Corporation Public Company Limited

1 / 3 No.IR.003/2019 28 February 2019 Re: Notification of the changes of the Profit and Loss Statement To: President Stock Exchange of Thailand We, T Engineering Corporation Public Company Limited

BS09/2545 (Translation) No. 05/2019 March 21, 2019 President The Stock Exchange of Thailand Re: Notification of the Resolution of the Board of Directors’ Meeting No. 4/2019 We, AEON Thana Sinsap

1 / 2 IR.017/2019 13 August 2019 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

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

1 / 2 IR.023/2018 13 November 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

BS09/2545 (Translation) No. 20/2019 September 10, 2019 President The Stock Exchange of Thailand Re: Notification of the Resolution of the Board of Directors’ Meeting No. 10/2019 We, AEON Thana Sinsap

1 / 3 IR.031/2020 13 August 2020 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

BS09/2545 (Translation) No. 14/2020 September 15, 2020 President The Stock Exchange of Thailand Re: Notification of the Resolution of the Board of Directors’ Meeting No. 9/2020 We, AEON Thana Sinsap

Management Discussion and Analysis of Business Operation for the 2nd quarter of 2017 Bangchak Corporation Plc. 1 | Bangchak Corporation Public Company Limited Management Discussion and Analysis of