subsidiaries Ref. PDI/BK-BS-008/2020 20th February 2020 Re: Management Discussion and Analysis (MD&A) For the year ended December 31, 2019 To: President The Stock Exchange of Thailand Padaeng Industry Public

World Corporation Public Company Limited. Ref. World 11-04/2019 4 Moo 11 Hathai Rat Road, Tumbon Lat Sawai Ampur Lum Luk Ka, Pathum Thani Province November 20, 2019 Re : Approval of Acquisition of

World Corporation Public Company Limited. Ref. World 11-07/2019 4 Moo 11 Hathai Rat Road, Tumbon Lat Sawai Ampur Lum Luk Ka, Pathum Thani Province November 26, 2019 Re : Approval of Acquisition of

Ref. PDI/BK-BS-064/2019 12th November 2019 Re: Management Discussion and Analysis (MD&A) For the three-month and nine-month periods ended September 30, 2019 To: President The Stock Exchange of

”) would like to inform the setting up of a new indirect subsidiary company in Indonesia to undertake a feasibility study for the setting up a Mono Ethylene Glycol plant. Details as below: Name of the new

Ref. PDI/BK-BS-050/2019 9th August 2019 Re: Management Discussion and Analysis (MD&A) For the three-month and six-month periods ended June 30, 2019 To: President The Stock Exchange of Thailand PDI

Page 1 of 9 Ref. PDI/BK-BS-049/2017 31 August 2017 To: President The Stock Exchange of Thailand Re: Acquisition of shares in Symbior Elements Pte. Ltd. Enclosure: Information Memorandum regarding the

[COMPANY NAME] Ref.: EFORL IR008/2019 March 7, 2019 Subject: Management Discussion and Analysis Yearly Ending 31 December, 2018 To President The Stock Exchange of Thailand 1. Overview financial

feasibility of supporting expenses for human resource development, investor base expansion and IT system development in order to raise the business operating standards which will be beneficial to the

Understanding re: the Feasibility Study on the Acquisition of CR Solar Company Limited and (2) Related Parties Transaction. Attn: Director and Manager The Stock Exchange of Thailand Enclosure: 1. Information