CGNI Financial and ESG Update

4 Regulatory framework proved its resilience in extraordinary market conditions. RP5 determinations provide a predictable and supportive regulatory regime with a comprehensive CAPEX plan and reasonable operating performance incentives. RAB Reconciliation and Capex Upward reconciliation of RAB to match the higher underlying net book value in motion until 2025 RAB reconciliation ensures smooth tariff development in the upcoming years Non-binding Capex plans for period 2021-2025 and 2025-2030 submitted to regulator by all DSOS RAB and NAV Reconciliation Schedule NAV (CZKbn) 75 70 65 60 RP4 RAB (CZKbn) RP5 100% 90% 100% 80% 96% 95% 70% 89% 60% 84% 50% 12% 40% 72% 69% 70% 30% 65% 67% 40 60% 62% 35 30 FR5445 50 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022E 2023E 2024E 2025E Source: Company Information, ERO. Note: (1) Service-Level-Agreement (SLA) margins refer to the margin on services provided from GasNet Služby to GasNet. 20% 10% 90 0% Regulatory WACC RP5 WACC was set to 6.43% (pre-tax) Opex Opex under- / outperformance sharing at the level of GasNet set at 50% / 50% Opex level based on the average of 2017-2019 actuals Service Level Agreement (SLA) margins (1) at GasNet Služby retained Inflation Escalation index comprising of wage index and services index is used for valorization of allowed OPEX. Correction factors are escalated using Producer Price index (PPI) All indexes are being published by Czech statistical office. Risks of regulatory changes before 2026 Risk of regulatory changes affecting main principles of RP6 seems to be rather limited. Some marginal changes (i.e conditions to procure network losses) have been initiated by DSOS & ກ gasnet.cz 27

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