Ref: CIG 031/2018 May 15, 2018 Subject: Profit and loss reporting for the first quarter of 2018 and explanation of more than 20 percent fluctuation in profit and loss compared to that of last year

1 Ref: CIG 042/2018 August 14, 2018 Subject: Profit and loss reporting for the second quarter of 2018 and explanation of more than 20 percent fluctuation in profit and loss compared to that of last

1 Ref: CIG 051/2018 November 14, 2018 Subject: Profit and loss reporting for the third quarter of 2018 and explanation of more than 20 percent fluctuation in profit and loss compared to that of last

1 Ref: CIG024/2019 November 12, 2019 Subject: Profit and loss reporting for the third quarter of 2019 and explanation of more than 20 percent fluctuation in profit and loss compared to that of last

Ref. 0347/2018 Date August 14, 2018 Subject 20% Performance Growth in the second quarter of 2018 Attention: Directors and Managers The Stocks Exchange of Thailand QTC Energy Public Company Limited

1/2 Ref: CIG 015/2018 March 12, 2018 Subject: Profit and loss reporting the financial statements for the year ended December 31, 2017 and explanation of more than 20 percent fluctuation in profit and

1/2 Ref: CIG 009/2019 February 27, 2019 Subject: Profit and loss reporting the financial statements for the year ended December 31, 2018 and explanation of more than 20 percent fluctuation in profit

Ref: CIG 020/2020 June 11, 2020 Subject: Profit and loss reporting for the first quarter of 2020 and explanation of more than 20 percent fluctuation in profit and loss compared to that of last year

Ref: CIG029/2020 August 14, 2020 Subject: Profit and loss reporting for the first half of 2020 and explanation of more than 20 percent fluctuation in profit and loss compared to that of last year

Ref: CIG 040/2020 November 16, 2020 Subject: Profit and loss reporting for the period of 9 month of 2020 and explanation of more than 20 percent fluctuation in profit and loss compared to that of