CGNI Financial and ESG Update

5 Material wise, we are ready to distribute a 20% blend of hydrogen with NG. Specifically, pipeline components are prepared to a large extent for 100% H2 distribution Current Steel and PE Pipeline Breakdown 6 ■Owned LP and MP PE in km 13 885 28% ■Owned LP and MP Steel in km 35 368 72% Source: GasNet; Marcogaz (EU); NREL (USA); GRTGaz (FR); HyDeploy (UK); Hy4Heat (UK); internal analysis. • • • PE mains are crucial for future distribution of blended gases and hydrogen CGNI is well-positioned with its current pipeline material mix A significant proportion of ~72% of current, owned local network length are already in PE 60% of municipalities have already a PE pipeline share higher than 99% By replacing legacy materials (steel) with modern materials (PE), the Company also expects to drive emission and cost savings. gasnet.cz 50

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