661 6664-5 www.indoramaventures.com Ref.No.IVL003/12/2018 20th December 2018 President The Stock Exchange of Thailand Subject: Acquisition of Specialty PET Business in Germany Indorama Ventures Public

661 6664-5 www.indoramaventures.com Ref.No.IVL004/12/2018 24th December 2018 President The Stock Exchange of Thailand Subject: Acquisition of PET Recycling Assets in USA Indorama Ventures Public Company

. 20/2551 Re: Rules on Entering into Material Transactions Deemed as Acquisition or Disposal of Assets dated 31 August 2008, and the Notification of the Board of Governors of the Stock Exchange of

Board No. TorChor. 20/2551 Re: Rules on Entering into Material Transactions Deemed as Acquisition or Disposal of Assets, and the Notification of the Board of Governors of the Stock Exchange of Thailand Re

Board No. Tor Jor 20/2551 Re: Significant Rules on the Transactions to the Acquisition and Disposition of Assets and the Notification of the Stock Exchange of Thailand Re: Disclosure of Information and

Notification on Acquisition or Disposal of Assets. The Company is required to immediately disclose the information memorandum on entering into such transaction to the Stock Exchange of Thailand (the "SET

-1- AIT (VP-SEC) 028E/2022 November 10, 2022 Subject: Management's Discussion and Analysis of Operating Results for Q3-2022 To: The President of the Stock Exchange of Thailand Summary of Operations

into a substantial transaction classified as an acquisition or disposal of assets, dated August 31, 2008 (as amended) and Notification of Stock Exchange of Thailand Board Re: Disclosure of information

into Material Transactions Deemed an Acquisition or Disposition of Assets, as well as under the Notification of the Stock Exchange of Thailand Re: Disclosure of Information and Operation Concerning the

Rules on Entering into Material Transactions Deemed as Acquisition or Disposal of Assets) and the Notification of the Board of Governors of the Stock Exchange of Thailand regarding Disclosure of