GC_ONE REPORT 2021_ENG

Adjusted EBITDA Margin % Adj. EBITDA Margin 2020 2021 Business Unit: Refinery and Shared Facilities 2 1 Aromatics 11 11 Olefins and Derivatives* 16 20 Green Chemicals 7 8 Performance Materials and Chemicals 18 27 Average 9 12 Note: *If included PTA, PET %Adj. EBITDA in 2020 and 2021 are 14 and 17 respectively. ADJUSTED EBITDA* 55,186 MB SALES REVENUE 465,128 MB 2021 Performance Summary (Unit: Million Baht) 2020 2021 YoY % +/(-) Sales Revenue 326,270 465,128 43% EBITDA 20,291 61,141 >200% EBITDA Margin (%) 6% 13% 7% Share of profit of investments in JV and Associates 3,340 6,993 109% Net Profit 200 44,982 >200% EPS (Baht/Share) 0.04 10.01 >200% Adjusted EBITDA* 28,579 55,186 93% Adjusted EBITDA Margin (%) 9% 12% 3% Note: * Adjusted EBITDA refers to EBITDA excluding Stock gain/(loss), NRV and Extra item Olefins and Derivatives Green Chemicals Services and Others 3% -2% 49% Refinery & Shared Facilities 3% Aromatics 13% Performance Materials and Chemicals 34% Olefins and Derivatives Green Chemicals Aromatics Performance Materials and Chemicals 34% 4% 9% 15% Refinery & Shared Facilities 38% 98 PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED Form 56-1 One Report 2021

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