Shareholding Structure in Subsidiaries and Affiliates 40% 41.5% 33.4% 32.72% PTT Digital KGC AVT 15% EFT 50% 25% 15% 10% PRS RAYONG BSA SPSE GPSC 50% 49% 41.44% 50% 100% 100% 100% 70% 100% 100% 100% 44.4% Remarks: Significant change in the shareholding structure in subsidiaries and affiliates from January 1st to December 31st, 2023 - March 31st, 2023 : PTT Phenol Co.,Ltd. (Phenol) and GC Oxirane Co.,Ltd. (GCO) have already registered their dissolutions. - September 5th, 2023 : PTTGC Innovation America Corporation (GCIA) changed the company’s name to GC America Sustainability Corporation (GCAS) and PTTGC America Corporation (GCA Corp) currently hold 100% share of GCAS. - December 20th, 2023 : GC sold 50% of shares in GC Logistics Solutions Company Limited (GCL) to WHA Venture Holding Company Limited (WHAVH). As a result, GC currently holds 50% of GCL shares and changed from subsidiary company to joint venture company. - In 2024, GCM Polymer Trading DMCC will file for company dissolution. 100% 100% 10% 100% 100% 100% SUN GCME NPC NPCSG TPRC 50% DYCT GCA Corp GCV GCVA GC BV allnex Vencorex GCI ENVICCO NatureWorks TPBIMS Upstream Intermediates Polymers and Chemicals Bio and Circularity Performance Chemicals Services and Others 25% SPIG 100% 100% 40% GCEC GCM 100% GCTC 100% GCM China 100% GCM Myanmar 100% GCM Vietnam 100% GCM Indonesia PTTMCC 50% GCL RGL HMC PTTAC TTT 36.43% Subsidiaries Others Affiliates Joint Ventures 82.1% 72.29% 74% GCP GGC GC-MPTA 100% 100% GCAS GCA EOUK 100% 50% GC Inter 78
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