IRPC One Report 2022 EN

Group Shareholding Structure Business Structure and Shareholding IRPC Public Company Limited Petroleum Business Other Businesses Petrochemical Business Subsidiary 99.99% IRPC Oil Company Limited Refined product distribution Subsidiary 99.99% IRPC Technology Company Limited Vocational school Joint Venture 50.00% Vajira Lab for Society Company Limited Testing and certification services for medical equipment Other joint venture partner: Navamindradhiraj University 50% 40.00% WHA Industrial Estate Rayong Company Limited Industrial estate development Other joint venture partners: WHA Industrial Development Public Company Limited 60% Associated Company 48.99% IRPC Clean Power Company Limited Production and distribution of electricity and steam Other shareholder: Global Power Synergy Public Company Limited 51% 20.00% PTT Energy Solutions Company Limited Engineering consultant Other shareholders: PTT Plc. 40%, PTT Global Chemical Public Company Limited 20% and Thai Oil Public Company Limited 20% Other investment 15.00% Guangzhou Saiju Performance Polymer Company Limited Distributor of polymers and chemicals through E-commerce in China 15.00% Sarn Palung Social Enterprise Company Limited Support execution of social enterprises 13.04% Rayong Acetylene Company Limited Production and distribution of acetylene gas Subsidiary 60.00% Innopolymed Company Limited Production and distribution of nonwoven fabric products and medical consumables Other joint venture partner: Innobic (Asia) Co., Ltd. 40% 57.48% IRPC A&L Company Limited Polymer distribution Other joint venture partners: Nippon A&L Co., Ltd. 39.99%, others 2.53% 55.00% iPolymer Co., Ltd. Distribution of polymers and chemicals through E-commerce Other joint venture partner: Guangzhou Saiju Performance Polymer Ltd. 45% Joint Venture 50.00% IRPC Polyol Company Limited Production and distribution of polyols Other joint venture partner: PCC Rokita SA 50% 50.00% Mitex Polymer (Thailand) Co., Ltd. Production and distribution of chemicals Other joint venture partner: Japan Polychem Corporation 50% Associated Company 25.00% UBE Chemicals (Asia) Public Company Limited Production and distribution of petrochemical products Other joint venture partner: UBE Corporation 74%, others 1% Indirect Subsidiary 99.99% Rakpasak Company Limited Marine logistics, fertilizer manufacturer and distributor Notes: On July 25, 2022, the Board of Directors meeting resolved to approve the dissolution of PTT Energy Solutions Co., Ltd. (PTTES), and on August 29, 2022, the Extraordinary General Meeting of Shareholders of PTTES resolved to approve the dissolution of PTTES. The dissolution was registered with the Ministry of Commerce on December 29, 2022. 89 Structure and Business Operations of IRPC IRPC PUBLIC COMPANY LIMITED

RkJQdWJsaXNoZXIy ODg4NTI=