GC One Report 2023 [EN]

Notes to the Financial Statements PTT Global Chemical Public Company Limited and its Subsidiaries Notes to the financial statements For the year ended 31 December 2023 108 Commodity price sensitivity analysis The following table details the Group’s sensitivity to an increase and decrease in commodity price. The sensitivity analysis includes only outstanding commodity derivative contracts at the reporting date and using an increase or decrease rate by considering the reasonably possible change in commodity price. Consolidated financial statements Separate financial statements Increase Decrease Increase Decrease (in million Baht) At 31 December 2023 Net derivatives gain (loss) Petroleum Crack Spread hedging +/- 1 USD per BBL (51) 51 (51) 51 Petrochemical Spread hedging +/- 1 USD per Ton (1) 1 (1) 1 At 31 December 2022 Net derivatives gain (loss) Petroleum Crack Spread hedging +/- 1 USD per BBL (84) 84 (84) 84 27 Commitments with non-related parties Consolidated financial statements Separate financial statements 2023 2022 2023 2022 (in million Baht) Capital commitments contracted but not provided for Land 5 2 1 2 Plant, machinery and equipment 3,994 4,640 2,857 2,261 Buildings and furniture, fixtures and equipment 77 428 9 82 Others 279 436 233 332 Total 4,355 5,506 3,100 2,677 Non-cancellable lease commitments Within one year 115 88 107 83 After one year but within five years 80 68 77 62 Total 195 156 184 145 Other commitments Letters of credits 99 116 47 24 Bank guarantees 10,155 9,829 5,903 5,188 Electrical guarantee 7,484 7,247 7,484 7,247 Guarantees to subsidiaries and joint ventures for credit facilities, debentures and bank guarantees 4,600 207 86,706 97,449 Other agreements 5,915 5,187 376 444 Total 28,253 22,586 100,516 110,352 352

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