Mr. Jakchai Sakunekphaisan During 10 – 13 May 2024, Mr. Jakchai Sakunekphaisan manipulated the price and/or trading volumes of Prosper Engineering Public Company Limited (PROS) stocks. His activities

661 6664-5 www.indoramaventures.com Ref.No.IVL001/01/2020 6th January 2020 President The Stock Exchange of Thailand Subject: Report on the Completion of the Acquisition of the Integrated Oxides and

661 6664-5 www.indoramaventures.com Ref.No.IVL005/12/2018 24th December 2018 President The Stock Exchange of Thailand Subject: Integrated PTA-PET assets at Corpus Christi Joint Venture Receives FTC

นายจักรชัย สกุลเอกไพศาล ในระหว่างวันที่ 10 - 13 พฤษภาคม 2567 นายจักรชัย สกุลเอกไพศาล ได้สร้างราคาและ/หรือปริมาณการซื้อขายหุ้นของบริษัท พรอสเพอร์ เอ็นจิเนียริ่ง จำกัด (มหาชน) ("PROS") โดยมีพฤติกรรม

661 6664-5 www.indoramaventures.com Ref.No.IVL001/01/2019 2nd January 2019 President The Stock Exchange of Thailand Subject: Report on the Completion of the Acquisition of the integrated PTA- PET assets

Ref.No.IVL004/03/2018 21st March 2018 President The Stock Exchange of Thailand Subject: Indorama Ventures enters into a Joint Venture to acquire the integrated PTA- PET assets in Corpus Christi, Texas, USA

:53 Report on the Completion of the Acquisition of Packaging Businesses in Vietnam 04/04/2022 08:00 Report on the Completion of the Acquisition of Integrated Oxides and Derivatives Businesses in Latin

downstream business in Integrated Oxides and Derivatives based out of advantaged Gulf Coast USA. Indorama Ventures 2nd Quarter 2019 MD&A 2 2Q 2019 Summary Financials Table 1: Core Financials of Consolidated

661 6664-5 www.indoramaventures.com Ref.No.IVL005/03/2020 19th March 2020 President The Stock Exchange of Thailand Subject: Update on the construction of the integrated PTA-PET assets in Corpus Christi

the process of establishing a working group consisting of related agencies for integrated enforcement actions, including legal actions on the offenses of share price manipulation against which the SEC