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Eni — Plenitude–1H presentation (company IR deck)

Eni (E) · 6 slides · Filed Oct 21, 2026

Every slide of this earnings presentation, with the text as published. Open the original deck ↗ · All E deck slides

Slide 1 — PLENITUDE

PLENITUDE 1H26 Results Overview Corazon - USA (266 MW) 29th July 2026

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Slide 2 — SCENARIO – KEY VARIABLES

SCENARIO – KEY VARIABLES 8% 20% Based on leading agencies data 120 127 62 49 ITALY EU27 (5% in 1H25) (15% in 1H25) 2 1H25 1H26 1H25 1H26 POWER ITALY (PUN) | €/MWh BEV | % ON SALES POWER SPAIN (POOL) | €/MWh 1H26 1H26

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Slide 3 — KEY FINANCIALS

3 KEY FINANCIALS EBITDA is adjusted and includes 100% of consolidated and pro-quota of non-consolidated companies. NET DEBT | €BLN EBITDA | €BLN E-MOBILITY RETAIL RENEWABLES 1H25 1H26 0.54 0.61 2.1 3.3 End of June 2026 End of June 2025

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Slide 4 — RENEWABLES

0.1 >0.1 EBITDA includes 100% of consolidated and pro-quota of non-consolidated companies. RENEWABLES 1H25 1H26 4 OPERATING DATA EBITDA | BLN KEY HIGHLIGHTS GW INSTALLED 6.0 4.5 1H26 1H25 TWh PRODUCTION 4.0 2.7 ▪Capacity addition 1H26: +1.5 GW YoY (+30%) ▪Production 1H26: +1.3 TWh YoY (+50%) ▪Pipeline in execution (@ June end 2026): 1.1 GW, mainly in UK: 0.3 GW US: 0.3 GW Italy: 0.3 GW Spain: 0.1 GW Greece: 0.1 GW

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Slide 5 — RETAIL

0.5 >0.4 RETAIL 1H25 1H26 5 OPERATING DATA EBITDA | BLN KEY HIGHLIGHTS CUSTOMERS MLN 10.8 10.0 1H26 1H25 POWER SHARE 47% 45% ▪ Customer base 1H26: +8% YoY, benefitting from the acquisition of Acea Energia ▪ Power share 1H26: ongoing portfolio shifting (+2 p.p. YoY) ▪ Acea Energia: to be fully incorporated in Plenitude portfolio by YE26

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Slide 6 — E-MOBILITY

21.8 23.2 E-MOBILITY 1H25 1H26 6 NETWORK DETAILS CHARGING POINTS | kCPs KEY HIGHLIGHTS Proprietary network installed ▪CPs 1H26: +6% YoY, mainly fast DC (+25% YoY). Operations in 8 countries in EU ▪Energy delivered 1H26: +50% YoY (+30% YoY in Italy; >3.5x outside Italy) ▪Proprietary app 1H26: +20% YoY active recharging customers CPs FAST DC SHARE 20% >15% 1H26 1H25 CPs IN OPERATION SHARE >85% 80%

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