: Name of the Subsidiary: Indorama Ventures Spain S.L. Nature of business: Holding Company Registered Capital: Euro 10,000 (equivalent to Baht 390,000) Percentage of Investment: 100% by Indorama Netherland

Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No STOWER CAPITAL ENGINEERING NETWORK PUBLIC COMPANY LIMITED

Far Eastern Investment (Holding) Ltd, for formation of a joint ventures company, namely Corpus Christi Polymers LLC (“CCP”), to acquire the integrated PTA-PET assets in Corpus Christi, Texas, USA, under

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No BAFS KRUNGSRI ASSET MANAGEMENT COMPANY LIMITED

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No WORK KRUNGSRI ASSET MANAGEMENT COMPANY LIMITED

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No VGI BTS GROUP HOLDINGS PUBLIC COMPANY LIMITED

8.9075 4.116 09/08/2023 13.0236 8.9075 4.116   246025652308-1 MK SUPALAI PROPERTY MANAGEMENT COMPANY LIMITED Disposition Stock 8.7961 8.7961 0 09/08/2023 9.0827 9.0827 0   246025662308-1 MK HATYAI NAKARIN

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No ADD BBL ASSET MANAGEMENT COMPANY LIMITED Disposition

. Notification of the Office of the Securities and Exchange Commission No. SorKhor. 22/2553 Re: Prohibited Characteristics of Directors, Executives and Major Shareholders of Trustees

Report of the Acquisition or Disposition of Securities (Form 246-2) 2.1 (     ) Acquisition (  ) Disposition (  ) Through the Stock Exchange of Thailand via a securities company