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

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

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

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No.IFEC/SorNorBor/2017/0051 August 25, 2017 Subject: Submission of operation results for the year of 2016 and clarification. To: President The Stock Exchange of Thailand Inter Far East Energy

Page 1 of 2 AC6305/006 May 14, 2020 Subject Clarification of the operating results for the quarter 1/2020 ended March 31, 2020 To Director/ Managing Director The Stock Exchange of Thailand According

No. ACC6311/010 12 November, 2020 Subject Clarify the Operating results for quarter 3/2020 ended 30 September, 2020 Attention Director and Manager The Stock Exchange of Thailand According to Advanced

Ref: ACC6405/001 March 12, 2021 Subject Clarification of the operating results for the quarter 1/2021 ended March 31, 2021 Attention: Director and Manager The Stock Exchange of Thailand According to