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2021 Refinery Maintenance Schedule Refinery Unit Batman Crude Oil & Vacuum Starting Quarter Duration (weeks) Purpose Status Q1 7* Seasonal Done Crude Unit Q1 6 Done CCR Q1 10 Done Revamp Opportunity FCC Q1 9 Done Maintenance İzmir Isomerization Q1 10 Done Desulphurizer Q1 11 Done Vacuum Q4 6 Periodic Maintenance Postponed (2022) Lube Complex Q4 6 Desulphurizer Q1 4 Periodic Maintenance Periodic Maintenance Postponed (2022) İzmit FCC Q1 30 Revamp Crude Unit Q4 2 Periodic Maintenance Done Ongoing Planned Kırıkkale (*) This activity started in Q4 2020. Duration figure indicates the portion carried out in 2021 Sep-21 Appendix Investor Presentation www.tupras.com.tr 38

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