Ref.No.IVL012/11/2017 30th November 2017 President The Stock Exchange of Thailand Subject: Report on the Completion of the Acquisition of the PTA and Utility assets in Portugal With reference to the disclosure

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HONDA ENGINEERING ASIAN CO No WICE 002/2018 4 January 2018 Subject: The payment of share acquisition of Universal Worldwide Transportation ( “UWT”) To President The Stock Exchange of Thailand

Ref.No.IVL008/02/2018 21 st February 2018 President The Stock Exchange of Thailand Subject: The Establishment of a New Indirect Subsidiary Company in Indonesia Indorama Ventures Public Company Limited (“IVL

Page 1 of 2 Ref. GEL.CS.003/2561 27th February 2018 Subject: The disposition of warrants to purchase common stock of Millcon Steel Public Company Limited No.3 (MILL-W3) To: Director and Manager The

27 February 2019 Subject :Management discussion and analysis of financial statement for the year 2018, ended December 31, 2018 Attention :Director and Manager The Stock Exchange of Thailand The

661 6664-5 www.indoramaventures.com Ref.No.IVL001/03/2019 1st March 2019 President The Stock Exchange of Thailand Subject: Report on the Completion of the Acquisition of Airbag Yarns Business in Germany

661 6664-5 www.indoramaventures.com Ref.No.IVL002/03/2019 5th March 2019 President The Stock Exchange of Thailand Subject: Report on the Completion of the Acquisition of Specialty PET Business in

Attn : The Directors and The MAI Manager Ref: Dimet AC 1905/001 May 13, 2019 Attention: The Directors and The MAI Manager The Stock Exchange of Thailand Subject: Report on Q.3’s performance (January

วันที่ 11 กุมภาพันธ์ 2551 Ref: Dimet AC 1805/001 May 14, 2018 Attention: The Directors and The MAI Manager The Stock Exchange of Thailand Subject: Report on Q3’s performance Dear Sir, We would like