Ref.No.IVL004/10/2017 10th October 2017 President The Stock Exchange of Thailand Subject: Acquisition of 100 percent of the Film and Polymer business of DuPont Teijin Indorama Ventures Public Company Limited

May 14, 2020 Reference no. RWI /BKK/018/2563 Subject : Management’s Discussion and Analysis of Business Operations of the First Quarter of 2020 To The Director and Manager of the Stock Exchange of

: President The Stock Exchange of Thailand Since the Board of Directors of Filter Vision Public Company Limited (“the Company” or “FVC”) dated December 14, 2017 resolved to approve the signing of Hi Healthcare

Stock Exchange of Thailand Ekachai Medical Care Public Company Limited (the “Company”) would like to clarify on the operating results for year ended of 31 December 2017 as follows. The operation results

31st March 2018 To : Managing Director Stock Exchange of Thailand Ekachai Medical Care Public Company Limited (the “Company”) would like to clarify on the operating results for the three-month period at

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

making of investors. For example, company does not disclose information that affects financial position or does not submit financial statements or financial statements are incorrect** and will fall into

misappropriating the company?s assets in contravention of Section 307, 308, 311, 313 and 315 of the Securities and Exchange Act of 1992 (SEA).     A referral from the Stock Exchange of Thailand (SET) and the SEC

STP&I Plc. (STPI)?s shares using inside information. With the referral from the Stock Exchange of Thailand (SET), the SEC investigation revealed that Choavalit, Yanyong and Ziriwat had purchased STPI

บริษัท วนชัย กรุ๊ป จำกัด(มหาชน) -Translation- 25 June 2018 Subject : Disclosure of connected transaction by a subsidiary company Attention : President The Stock Exchange of Thailand Vanachai Group