Investor Presentaiton

OeBFA Austrian Treasury High Gas Storage Levels compared to Consumption and European average Austria's Gas Storage Levels Fill level as of March 24, 2024 at around 75%, which is well above average historic levels at this time in the year Vast pipeline capacities of around 170 TWh p.a. from Italy and Germany (around 2-times the Austrian annual gas consumption) enable supply security1 Storage Capacity and Storage in % Annual Consumption At 108%, Austria's gas storage capabilities are larger than the annual gas consumption At around 80% of annual consumption, Austria currently has the second highest gas storage in Europe ON WAS ON O in % 100 max. 2016-2022 90 260% 240% 220% 80 70 Average 2016-2022 200% 2023/24 180% 160% 60 50 140% min. 2016-2022 40 120% 100% 80% 30 60% 20 40% 10 20% 0 0% May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr 1) Austrian Gas Grid Management AGGM, Coordinated network development plan 2022, April 2023 Source: GIE Aggregated Gas Storage Inventory (agsi.gie.eu), Data as of March 24, 2024 Republic of Austria / Investor Information, April 2024 1. Economic & Fiscal Overview Latvia Austria Hungary Slovakia Czech Republic Denmark Netherlands ■Gas in storage in % of 2022 consumption ■Gas storage capacities in % of 2022 consumption Germany EU Romania Italy France Bulgaria Poland Spain Croatia Portugal Belgium Sweden 11

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