Investor Presentaiton

Heavy Crude Price Differentials to Brent ($/bbl) 2 0 -2 -4 -6 -8 -10 - Iran Sanctions OPEC+ Cut Decision OPEC+ disagreement OPEC+ Cut Decision -12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 2018 2019 2020 2021 Sep-21 Investor Presentation Refining Market www.tupras.com.tr Arab Heavy Basrah Heavy Kirkuk • • Ural Average* 8 9 10 11 12 *Simple average of listed differentials 8

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