CGNI Financial and ESG Update

2 Outlook 2023 April 2023 May 2023 RP6 negotiations started 2024 Network losses agreed June 2023 2024 Inflation parameters August 2023 CAPEX plan and reg. draft parameters 2024 Sept. 2023 Nov. 2023 Alignment process Official 2024 tariff announcement ERO/CGNI Agreement with the regulator (ERO) on coverage of network losses for 2024: cost neutral OPEX inflation vs. Actual cost increases neutral to wide extent CAPEX & D&A plan not expected to change Whole negative k-factor (excess of actual revenues over allowed revenues) generated in the past (CZK 2,650m) to be returned to the system in 2023. No such negative one-off impact expected in 2024. Expected tariff increase in absolute terms relatively high, but lower than electricity RAB and NAV Reconciliation Schedule NAV (CZKm) 80 60 RP4 RAB/ NAV (%) RP5 100% 10 70 80% 100% 60 969 • 899 95% 60% 50 757 84% 40% 72% 699 70% 40 65% 67% 60% 62% 20% • 30 0% 6 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022E 2023E 2024E 2025E Upward reconciliation of RAB to match the higher underlying net book value in motion until 2025, with non-binding Capex plans for period 2021-2025 and 2025-2030 gasnet.cz 16

View entire presentation