1 Translation CEN 015-2020 August 14, 2020 Subject Notification on disposal of investment in subsidiaries (Biomass Power Plants Business) of Ua Withya Public Company Limited To The Manager and

Translation CEN 022-2017 August 11, 2017 Subject Management Discussion and Analysis for business operation of quarter 2/2017 To The Manager and President The Stock Exchange of Thailand For 3 months

1 Translation CEN 025-2017 November 13, 2017 Subject : Management Discussion and Analysis for business operation of quarter 3/2017 To The Manager and President The Stock Exchange of Thailand For 3

Translation CEN 003-2018 February 23, 2018 Subject : Management Discussion and Analysis for business operation of year 2017 To : The Manager and President The Stock Exchange of Thailand Business

1 Translation CEN 004-2019 February 27, 2019 Subject Management Discussion, analysis and business operation of year 2018 To The Manager and President The Stock Exchange of Thailand Yearly business

1 Translation CEN 012-2019 May 14, 2019 Subject Management discussion and analysis for business operation Quarter 1-2019 To The Manager and President The Stock Exchange of Thailand For 3 months

1 Translation CEN 024-2018 May 15, 2018 Subject : Management Discussion and Analysis for quarter 1-2018 To : The Manager and President Business operation for 3 month period as ended March 31, 2018 of

Translation CEN 034-2018 November 13, 2018 Subject : Management Discussion and Analysis for quarter 3-2018 To : The Manager and President The Stock Exchange of Thailand Business operation for 3

1 Translation CEN 012-2020 May 15, 2020 Subject : Management discussion and analysis for business operation Quarter 1-2020 To : The Manager and President The Stock Exchange of Thailand Summarization

1 Translation CEN 015-2019 November 14, 2019 Subject : Management Discussion and Analysis for business operation in Quarter 3-2019 To : The Manager and President The Stock Exchange of Thailand