GC_ONE REPORT 2021_ENG

Company Abbreviation Business Type Registered Capital (Million Baht) Paid-up Capital (Million Baht) Ownership Interest (%) 36 Kuraray GC Advanced Materials Co. Ltd. KGC Manufacturing and distribution of advnaced engineering plastic products 5,600 5,3215) 33.4 37 PTT Digital Solutions Co., Ltd. PTT Digital Information technology and communication services 150 150 40 38 PTT Energy Solutions Co., Ltd. PTTES Technical engineering consulting services 150 150 20 39 S.P. Petpack Inter Group Co., Ltd. SPIG Development of plastic packaging markets in the Republic of the Union of Myanmar 200 200 25 (via SUN) 40 Vinythai PLC. VNT Manufacturing and distribution of petrochemical products 7,111 7,111 24.98 41 Dynachisso Thai Co. Ltd. DYCT Manufacturing and distribution of PP engineering plastic compound 120 120 41.5 (via SUN) OTHERS 42 Business Services Alliance Co., Ltd. BSA Manpower and contractor services for PTT Group 2 2 25 43 Global Power Synergy PLC GPSC Maufacturing and distribution of shared facilities 28,197 28,197 103) 44 Pracharath Rak Samakkee Rayong (Social Enterprise) Co., Ltd. PRS RAYONG Management consulting services 4 4 50 45 Sarn Palung Social Enterprise Co., Ltd. SPSE Operating businesses or producing, purchasing, and selling products and/ or services that benefit society, communities, and the environment 10 10 15 46 TPBI & Myanmar Star Company Limited TPBIMS Development of plastic packaging markets in the Republic of the Union of Myanmar 6,726 million Myanmar kyat 6,726 million Myanmar kyat 10 (via SUN) Remarks: 1) As of January 12, 2021, GC paid for newly-issued shares in GCP 2) As of January 18, 2021, GC paid for newly-issued shares in GCO 3) As of June 8, 2021, GC disposed of 12.73% shares in GPSC and maintained its shareholding in GPSC at 10% resulting in a change from investment in affiliate to other investment 4) As of September 15, 2021 GC paid for newly-issued shares in ENVICCO 5) As of October 20, 2021, GC paid for newly-issued shares in KGC 6) As of November 1, 2021, GC has undertaken a shareholding restructuring in Emery Group whereby GC disposed of all of its shares in EOM and ESC and acquired 50% shares in Emery Oleochemicals UK Limited (EOUK) 7) As of November 18, 2021, GC increased the registered capital of GCV and paid for the newly-issued shares 8) As of December 28, 2021, GC Inter GC increased the registered capital of GC Inter and paid for the newly-issued shares 9) As of December 29, 2021, GC invested in the High Value Business (HVB) by holding 100% shares in allnex through GC BV 391 BUSINESS OPERATION AND PERFORMANCE CORPORATE GOVERNANCE FINANCIAL REPORTS AND FINANCIAL STATEMENTS APPENDIX

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