- 3 - Country of Ownership Name of the entity Type of business incorporation interest (%) 2021 2020 GC Logistics Solutions Co., Ltd. Transportation, warehouse and bagging packing management of polyethylene plastic pellets Thailand 100 100 GC Ventures Co., Ltd. Invest in form of Corporate Venture Capital (CVC) Thailand 100 100 GC Treasury Center Co., Ltd. Financial service management for the group Thailand 100 100 GC Styrenics Co., Ltd. Manufacturing and distributing petrochemical products Thailand 100 100 GC Oxirane Co., Ltd. Manufacturing and distributing petrochemical products Thailand 100 100 GC-M PTA Co., Ltd. (49% Direct interest and 25% Indirect interest) Manufacturing and distributing petrochemical products Thailand 74 74 GC Estate Co., Ltd. Real estate development for rent and to invest in petrochemical and related industries Thailand 100 100 Solution Creation Co., Ltd. Manufacturing and distributing petrochemical products and health and nutrition products Thailand 100 100 Thai Tank Terminal Limited Service for the storage and handling of liquid chemicals, oil and gas Thailand 51 51 PTT Phenol Co., Ltd. Manufacturing and distributing petrochemical products Thailand 100 100 NPC Safety and Environmental Service Co., Ltd. Safety and environmental services Thailand 100 100 Envicco Co., Ltd. Manufacturing, distributing and developing recycled plastic and by-products Thailand 70 70 PTTGC America Corporation Holding and operating international business United States of America 100 100 PTTGC International Private Limited Holding and operating international business Singapore 100 100 235 BUSINESS OPERATION AND PERFORMANCE CORPORATE GOVERNANCE FINANCIAL REPORTS AND FINANCIAL STATEMENTS APPENDIX
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