IRPC One Report EN

1.2.6 Product to Feed Margin (Product to Feed: PTF)* Net Stock Gain/ (Loss) Accounting PTF Market PTF Net Stock Gain/ (Loss) Accounting PTF Market PTF (Unit: USD/bbl) (Unit: MB) 18,487 9,339 4,819 (1,840) 13,668 11,179 8.20 4.22 (0.83) 6.06 2.14 5.05 2021 2020** 7,063 7,493 Olefins Group 6,605 3,686 Aro & Styrenics 13,668 11,179 Market PTF 2021 2020** 3.13 3.39 Olefins Group 2.93 1.66 Aro & Styrenics 6.06 5.05 Market PTF Notes: * Included Trading business (iPolymer) ** Reclassified PTF and Net Stock Gain/ (Loss) The Market Product to Feed Margin (Market PTF) in 2021 was Baht 13,668 million or USD 6.06 per barrel enhancing by Baht 2,489 million or USD 1.01 per barrel from that last year. This was because there were spread improvements of most petrochemical products, especially those in Olefins and Styrenics groups according to revived overall economic situations from COVID-19 pandemic. In 2021, the Market PTF was Baht 13,668 million enhancing by Baht 2,489 million from that in 2020 as most petrochemical products spreads improved owing to overall economic situations reviving from COVID-19 pandemic. The Company obtained the net stock gain of Baht 4,819 million or USD 2.14 per barrel comprising of the stock gain of Baht 4,869 million against the LCM loss of Baht 50 million. The aforementioned figures led to the Accounting Product to Feed Margin (Accounting PTF) equaling Baht 18,487 million or USD 8.20 per barrel rising by Baht 9,148 million or USD 3.98 per barrel from that in the previous year. 172 IRPC PUBLIC COMPANY LIMITED 56-1 ONE REPORT 2021

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