ที่ กตพ Ref. DBP. 073 / 2019 May 13, 2019 Subject : Clarification on Operating Results for the 1st quarter ending March 31, 2019 To : President The Stock Exchange of Thailand Diamond Building

in a complete stoppage of the plant. Using this opportunity, the Company preponed its Annual Maintenance Shutdown, which was earlier planned for May, 2019, by working strategically to align all

Subject : Notification for Resolution of Board of Director's Meeting No. 8/2019 regarding the Acquisition and Disposition of Assets of the Company Attention: President, The Stock Exchange of Thailand

the shareholding in subsidiary companies To: President The Stock Exchange of Thailand Attachment: 1. Structure of the shareholding in subsidiary companies 2. Information on the Connected Transaction of

The Stock Exchange of Thailand Reference: The Notification No. BGRIM 16/2563 dated 31 August 2020 Re: the readiness for development of 7 combined cycle cogeneration power plants as planned B.Grimm Power

Deemed as Acquisition or Disposal of Assets dated August 31, 2008 and the Notification of the Board of Governors of the Stock Exchange of Thailand Re: Disclosure of Information and Other Acts of Listed

Transactions Deemed as Acquisition or Disposal of Assets dated August 31, 2008 (as amended) and the Notification of the Board of Governors of the Stock Exchange of Thailand Re: Disclosure of Information and

ที่ กตพ Ref. DBP. 108 / 2019 August 13, 2019 Subject : Clarification on Operating Results for the 2nd quarter and 6-month Period ending June 30, 2019 To : President The Stock Exchange of Thailand

to the Stock Exchange of Thailand (the “SET”) until the Company and the Purchaser has signed the Land and Buildings sale and purchase agreement and the security deposit as agreed in the amount of THB

Ref. DBP. 153 / 2019 November 11, 2019 Subject : Clarification on Operating Results for the 3rd quarter and 9-month Period ending September 30, 2019 To : President The Stock Exchange of Thailand