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Snam Investor Presentation 2026

Mar 5, 2026

4042_rns_2026-03-05_89549a82-ecea-404a-9f8f-c0e96791d2e8.pdf

Investor Presentation

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5th March 2026

Via Vezza d'Oglio, 6 | Milan

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the energy house

Towards energy integration

2026-2030 Strategic Plan


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5th March 2026

Via Vezza d'Oglio, 6 | Milan

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the energy house

Towards energy integration

2026-2030 Strategic Plan


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FY 2025

Scenario

From Energy Transition to Energy Integration

Business Plan

Vision beyond 2030

Closing remarks


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Key achievements

Business

  • Adriatic Line Phase 1: 60% completed
  • FSRU Ravenna started operations in May
  • Integration of Edison Stoccaggio
  • Storage >10% fuller than EU average

Associates

  • ADNOC and ITM disposals
  • Agreement to get control over OLT
  • Italgas Exchangeable refinanced

Financing

  • First USD SLB for 2 Bn$
  • First EU Green bond for 1 Bn€
  • Average net cost of debt at ~ 2.6%

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Adriatic Line construction

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Sulmona Compressor Station¹

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FSRU Ravenna

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FSRU Toscana

Strategy execution at full speed

1) Final layout rendering


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Financial highlights

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Investments (M€)

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Tariff RAB (Bn€)

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Adj. EBITDA (M€)

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Adj. Net Income (M€)

Sound results, improved financial strength

1) 2025 Normalized EBITDA excludes 52 M€ of 2024 one-off revenues related to deflator update
2) 2025 Normalized Net Income following EBITDA normalization, affiliates normalization (-5 M€ of Italgas regulatory one-off related to 2020-2024 period and other minor adjustments), net financial expenses normalization (-8 M€ related to financial income one-off on OLT shareholder loan) and tax effects (+14M€)


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2025 Italian Gas demand & supply

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Demand, Bcm

  • Demand increase driven by thermoelectric sector
  • Significant increase in Export (+1.5 Bcm)

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Supply, Bcm

  • Import via pipelines represented ~ 62% of the inflows
  • LNG accounts for >30% of Italy’s supply

Growing national gas demand and increasing diversification via LNG

Note: The differences arising in reconciling demand and export with supply is associated with storage
1) Industry includes also agriculture, fishing, transport and non-energy uses
2) Others include energy system consumption (i.e. energy sector) and gas system consumption and losses
3) Domestic production includes natural gas and biomethane
Source: Snam internal


2025 Investments breakdown

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Taxonomy

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  • H2 Ready
  • Market Solutions
  • H2+CCS
  • Digitalization & Technology
  • Net zero Investments
  • Maintenance & Other

  • Capex Taxonomy aligned

Technical Investments

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  • Development
  • DT&T
  • Maintenance
  • Other
  • Replacements

SDGs

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  • SDG 9 – Industry, innovation and infrastructure
  • SDG 13 – Climate Action
  • SDG 7 – Affordable and clean energy
  • SDG 12 – Responsible consumption & production
  • Other SDGs
  • Not aligned

Capex plan fully on track with 34%² EU taxonomy and 54% SDGs aligned

1) Technical investments gross of grants
2) Does not include business combinations; 28% as per CSRD calculation


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Tariff RAB

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Bn€

Key drivers

RAB growth driven by:

  • Capex
  • RAB inflation
  • Stogit Adriatica and Ravenna FSRU entering into perimeter

Significant RAB growth driven by core investments

Note: 2024 RAB previously at 23.7 Bn€. Change due to RAB deflator update


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Net Income

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Solid operating performance and Associates boosting growth

1) Net profit Reported at 1.270M€ (+0.9% yoy). Adjustments are related to: capital gain on ADNOC disposal (+123 M€), change in fair value of derivative instrument (-319M€), incomes related to Italgas capital increase (+65 M€), impairment on De Nora stake (-71M€), charges for a settlement agreement (-17M€), impairment on Greenture (-15M€), other income/expenses related to equity investments (+4M€), tax effect on special items (+78M€)


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Cash flow

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Outstanding FFO generation with >80% EBITDA/FFO cash conversion

1) Reported Net Income before third parties


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Financial structure

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Net Debt evolution

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Maturities profile

Net Debt well below guidance

1) Excluding hybrid instrument, uncommitted lines and Commercial Paper


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European

European

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CO2 reduction

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Scope 1&2, ktCO2e

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Scope 3, ktCO2e

Scope 1&2¹ (-35% vs. '22; -9% vs. '24)

  • Strong performance ahead of targets despite an increase in transported gas thanks to decarbonization plan and dispatching optimization

Scope 3⁵ (-14% vs. '22; +1% vs. '24)

  • Suppliers: Carbon intensity down 20% vs. 2022 and higher use of primary data
  • Associates: 2025 emissions overall on track

Continuous emissions reduction

1) Target perimeter. Figures including HFC emissions (minor contribution<1)
2) 2022 Baseline adjusted accordingly with the Recalculation Policy
3) 2022 Baseline net of FSRU
4) CH4 emissions expressed in CO2 equivalent using a GWP equal to 29.8 (last GWP published by the IPCC in the 6th Assessment Report)

5) SeaCorridor entered in the perimeter in 2023, 2022 figures included in the baseline for comparative purposes
6) Includes: fuel & energy not included in Scope 1&2, business travel and employee commuting. In the fuel & energy category, emissions liked to Ravenna FSRU are excluded for 2025 and will be considered starting from 2026, in line with the Recalculation Policy


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FY 2025 Closing remarks

FY2025 FY 2025 Guidance^{1}
Investments 2.8 Bn€ ~ 2.9 Bn€ Broadly In line with guidance
Tariff RAB 26.2 Bn€ ~ 25.8 Bn€ Above guidance
Adj. EBITDA 2.97 Bn€ ~ 2.85 Bn€ Above guidance
Adj. Net income 1.42 Bn€ ~ 1.35 Bn€ Above guidance
Net debt 17.5 Bn€ ~ 18.6 Bn€ Well below guidance
DPS ~ 0.30 € ~ 0.30 € In line with guidance

Guidance Outperformed

1) Guidance issued during the 2025-2029 Strategic Plan Presentation on January 22, 2025


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Agenda

FY 2025

Scenario

From Energy Transition to Energy Integration

Business Plan

Vision beyond 2030

Closing remarks


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Energy demand

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Global Final Energy demand WEO25 CPS², '000 TWh

Key insights

  • Growth drivers: emerging economies, electrification, industry needs
  • Geopolitical instability, distressed supply chain of critical materials, AI, and defense

Unstoppable energy demand growth trend

1) STEPS (Stated Policies Scenario), 2023

2) CPS (Current Policies Scenario), 2025

3) STEPS (Stated Policies Scenario), 2025

Source: IEA, World Energy Outlook (WEO)


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Gas demand

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Global Gas demand WEO25 CPS², '000 Bcm

Key insights

  • Global gas demand rises to ~5,000 Bcm by 2035 (+1.6% vs. '24), driven by emerging economies
  • Demand supported by industrial and power generation needs and increased LNG accessibility

Rising global gas demand driven by power gen and system integration needs

1) STEPS (Stated Policies Scenario), 2023

2) CPS (Current Policies Scenario), 2025

3) STEPS (Stated Policies Scenario), 2025

Source: IEA, World Energy Outlook (WEO)


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New Snam energy scenario

Approach Main trends **2030 Stable gas demand**
Technology based and non policy driven Industrial gas demand
Rising industrial gas use, driven by coal-to-gas switching Stable industry, increasing LNG as fuel in transports and slightly decreasing residential uses and power generation
Electricity demand
Electrification drives growth, but the pace is behind policy targets
Renewables deployment
Growth behind policy – solar broadly on track, wind slowing **2035 Resilient gas demand**
Flexibility need
Increased RES share drives storage and flexible generation need Supported by industry demand and LNG use in transport, stable power demand and declining residential use

Gas acting as key balancing vector to preserve system reliability & adequacy


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Growing
&...&.

Italian Electricity outlook

Demand and Supply, TWh
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Key insights

  • Electricity demand increasingly met by renewables (mainly solar)
  • RES growth requires storage and responsive flexibility
  • Imports remain material, but are expected to slightly decline

Growing electricity demand however below NECP¹ projections

1) National Energy and Climate Plan
2) DDS24 is the average of DE-IT and GA-IT scenario published in September 2024 by Snam and Terna
Source: Snam Projections; Terna (Rapporto Mensile sul Sistema Elettrico, December 2025)


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Italian Gas outlook

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Bcm

Key insights

  • Slower transition pace
  • Industrial demand increase mainly driven by gas replacing coal
  • Export up to 7 Bcm from 2030

Resilient gas demand, consistently higher than NECP² and DDS24³ projections

1) +0.9 Bcm Industrial & Other does not include a potential upside: partial DRI ILVA gas conversion (+1.1 Bcm)

2) National Energy and Climate Plan (PNIEC) includes 0.9 Bcm on of hydrogen

3) DDS24 is the average of DE-IT and GA-IT scenario published in September 2024 by Snam and Terna. The value includes 4 Bcm on of hydrogen

4) See focus in next page for key elements of Non-structural variability margin

Source: Snam projections


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Demand variability

Driver Impact Gas demand var
Rainfall variability Change in gas-fired thermoelectric generation activity +/- 7.5
Bcm/year
Electricity imports variability Change in gas-fired thermoelectric generation activity +7.5
Hot summer Increase in electricity demand for cooling -7.5
Harsh winter Higher gas consumption in the civil sector

Infrastructures ready to accommodate non structural demand variability

Source: Snam internal


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Gas infrastructure as key enabler for adequacy and security

Adequacy and security

Ensuring adequacy and security requires appropriately sized and flexible gas infrastructure

Gas-electricity integration

As renewables grow and system complexity rises, gas-power integration becomes critical

New gases development

Integrating new low-carbon gases enables decarbonization without compromising security and competitiveness

From Energy Transition to Energy Integration


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Agenda

FY 2025

Scenario

From Energy Transition to Energy Integration

Business Plan

Vision beyond 2030

Closing remarks


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stamina

The largest European gas infrastructure player

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Italian & International Assets¹

Data as of FY 25

  • ~31 Bn€²
  • RAB²

  • ~37,600 km

  • Transport

  • ~21 Bcm capacity

  • Storage

  • ~22 Bcm/y capacity

  • LNG Regasification

Italian Assets

Data as of FY 25

  • ~26 Bn€
  • RAB²

  • ~33,100 km⁴

  • Transport

  • ~18 Bcm capacity

  • Storage

  • ~19 Bcm/y capacity

  • LNG Regasification

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1) Including pro-quota of International assets
2) 2025 Tariff RAB (Regulatory Asset Base)
3) Including TAG, GCA, Desfa, Teréga, Italgas and OLT pro-quota 2025 Tariff RAB
4) o/w 10,000 national and 23,100 regional network
SeaCorridor
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Our strategic framework

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Creating stakeholder value leveraging on innovation and energy vectors integration, and securing Italy's and Europe's energy competitiveness

Plan 2026-2030

On top

3

Asset Rotation Program

Innovation

Digital & Energy Tech innovation

People & Organization

Sustainability & Stakeholders

Clear, sustainable and measurable 2026-2030 strategy


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Investment plan

Natural gas CCS H2 Market Solutions
Transport Storage LNG
• Grid development
• Existing pipelines replacement
• Dual-fuel compression stations • Refurbishment and performance upgrading • Existing capacity refurbishment and consolidation • CCS project acceleration • H2 Backbone • Biomethane
• Energy Efficiency
• Greenture
Digital & Energy Tech innovation

~ 14 Bn€ investment plan strengthening core assets; scaling new energy solutions


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Natural gas: Transport

Industrials Growth

Adriatic Line (~ 1.5 Bn€)¹

  • Enhance security and resilience
  • Enable +10 Bcm/y from South
  • Help supply diversification
  • Strengthen EU and Italian gas markets competitiveness

Key achievements
- ~ 425 km of new pipeline

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Illustrative

Divertion

Sardinia network development (~ 0.9 Bn€)

  • Address Sardinia energy gap
  • Complete coal phase-out

Key achievements

Gas Pipeline
- Phase 1: From Oristano to Cagliari and Portovesme (~ 308 km)
- Phase 2: Sassari, Alghero and Porto Torres (~ 53 km)

Virtual Pipeline
- ~140,000 m³ FSRU in the Oristano port
- Barge Rental shuttling with Panigaglia and OLT

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Illustrative

Phase 1
Phase 2

Development

1) Net of grants


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Natural gas: Transport & Storage

Industrial Growth

Dual Fuel Compression Stations (~ 0.9 Bn€)¹

  • Transport system flexibility increase
  • Foster integration with renewables, reducing Scope 1 & 2 emissions and compression costs

Key achievements
- 6 compression stations by 2030:
- 4 Transport of which Poggio Renatico upgrade to increase transport capacity towards Austria from 8 to 14 Bcm/y
- 2 Storage

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Pipelines and Wells replacements (~ 3.0 Bn€)

  • Reduce risk through maintenance and safety levels enhancement
  • Ensure continuity and service quality
  • Support renewable energy sources integration

Key achievements
- ~ 976 km of pipeline replacements

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Illustrative

Replacement

1) Net of grants


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Natural gas: LNG

Industrial Growth

Panigaglia Terminal upgrade (~ 0.3 Bn€)

  • Extend plant operational life
  • Enable Virtual Pipeline (Sardinia)
  • Reduce emissions
  • Improve energy efficiency

Key achievements
- +30% regasification capacity

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Development

OLT (~ 0.6 Bn€)¹

  • Offshore LNG terminal 5 Bcm/y capacity
  • RAB-based regulatory regime

Key achievements
- Acquisition of control over OLT
- Closed ahead of schedule

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Development

1) Including acquisition price, net debt and technical capex, net of the stake already held
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Ravenna CCS Project

Industrial Growth

Onshore CO2 pipeline

  • Routes under permitting
  • Routes at feasibility study level
  • Future expansion
  • Shipping

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Key features (~ 0.8 Bn€)¹,²

  • Material offshore storage reservoirs capacity and robust demand from domestic emitters
  • Investments breakdown
  • CO2 network: ~ 400 M€ Capex¹
  • Storage in JV with ENI: ~ 400 M€ equity injection
  • Progressive ramp up to 4 Mt/y
  • FID by 2027, subject to adequate return, consistent regulatory framework and permitting completions
  • Project investment up to 2035 > 3 Bn€³ (Snam pro-quota)

Key achievements

  • PCI status confirmed and CEF grants application
  • Phase 1 (25 kt/y) positive KPIs
  • First section of the transport network progressed permitting (EIA obtained)
  • Regulatory framework under definition

1) Net of grants

2) vs. 500 M€ 2025-2029 Business Plan, +60% (+300 M€)

3) CO2 network and equity injection in JV (50% stake)


H2 Backbone

Industrial Growth

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Key features (~ 0.2 Bn€) $^{1,2}$

  • National end-to-end H2 backbone development
  • Leverage existing gas infrastructure: ~ 60% repurposing
  • Enable supply of low-cost renewable H₂ to key EU industrial clusters
  • FID targeted by early 2030, subject to coherent regulatory framework and adequate returns

Key achievements

  • Included in the 6th PCI list and 7th PCI list³
  • 24 M€ CEF co-financing secured
  • PMI list inclusion for off-shore pipe to North Africa³

1) Net of grants

2) vs. - 400 €M 2025-2029 Business Plan (-200M€)

3) Pending European Parliament and Council's ratification


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Market Solutions

Industrial Growth

Biomethane (~ 0.1 Bn€)¹,²

  • Largest Italian platform: 26 agri operating plants (33 MW) and 9 waste operating plants (14 MW)
  • ~70 MW capacity target by 2027
  • Disposal by 2027 as required by Regulator
  • EBITDA at ~65M€ in 2027

MW

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Energy Efficiency (~ 0.2 Bn€)¹,³

  • Focus on Energy Performance Contracts
  • Public Administration: >70% of the backlog by 2030
  • Backlog with ~12Y average duration

Backlog, Bn€

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1) Net of grants

2) ~140 M€ in 2026 vs. ~270 M€ 2025-27 (previous plan), -48% (-130M€)

3) ~240 M€ vs. ~250 M€ previous plan, -4% (-10M€)

4) Plus 0.8 Bn€ of soft backlog

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Active Portfolio Management

Included in Business Plan projections

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Key Levers

  • Industrial: Identify new business opportunities in key areas
  • Operational: Improve processes and reinforce operational capabilities
  • Financial: Capital structure and financing optimization

Strengthening overall portfolio resilience and performance


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Asset Rotation Program

On-top of Business Plan projections

Ongoing process, returns on-top the 2026-30 Business Plan

Strategy

Sharpen our industrial positioning and geographical footprint around:

  • Gas infrastructure
  • Security of supply
  • Enhanced energy system stability and competitiveness
  • Value chain integration

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Unlocking additional value


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Digital & Energy Tech innovation

Enabler

Digital (~ 0.8 Bn€)

Corporate application Industrial application

Digital Technology

Major initiatives:

  • Advanced High-Performance Computing and AI models for complex scientific simulations
  • Scale GenAI agents
  • Best of breed ERP Transformation
  • AI-embedded automation across corporate units
  • Asset Control Room (digital twin) evolution to optimize maintenance & operations processes
  • AI-enabled models to improve process transformation

Energy Tech Innovation (~ 0.2 Bn€)

Key technologies

Carbon Capture & Management Molecular Storage & Flexibility Decarbonized & synthetic molecules

Approach

  • New technologies to integrate multiple energy systems
  • Leverage on existing assets and capabilities
  • Value chain support for our infrastructure benefit

Vision 2030

  • Invest in Research and Development
  • Leverage partnership and grants
  • Reinforcing industrial strategic supply chain to finance new ventures
  • Selected venture capital investments

FONDO TECNICO
STANZETARIO
cdp
CDP Venture Capital Sgr


Boosting operational efficiency and supporting energy integration


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People & Organization

Enabler

AI & New technologies opportunities

1 New operating model

  • One Integrated Group
  • Rationalized Structure
  • Business driven model

2 Future proof workforce

  • Job architecture and future proof capabilities
  • New skill-based career path definition
  • Processes simplification and digitalization

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Change management

3 Employer value evolution

  • Employer branding and attractivity
  • Inclusion, Wellbeing and Welfare
  • Awareness and grip on field, institutions and universities

4 Learning ecosystem redesign

  • Culture & Leadership
  • Engaging resources
  • New learning experience

Comprehensive People Journey enabling the Group transformation


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Sustainability & Stakeholders

Enabler

Sustainability

Local Communities People
Biodiversity & Regeneration Carbon Neutrality

Key initiatives

  • Social value creation
  • Workforce empowerment
  • Positive impact on Nature by 2027
  • Roadmap toward carbon neutrality by 2040 and Net Zero by 2050

Stakeholder awareness

Positioning
Leader in gas market and guarantor of energy security
Institutions, industry

Dissemination
Spread the energy integration concept
Media, policy makers, opinion leaders, general public

Education
Explain the complexities of the energy system
Citizens

Align stakeholders and market participants around the evolving energy landscape


Sustainability and stakeholder awareness key Energy Integration enablers


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Agenda

FY 2025

Scenario

From Energy Transition to Energy Integration

Business Plan

Vision beyond 2030

Closing remarks


2026-2030 Financial Targets

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Investments (Bn€)

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EBITDA adj. (Bn€)

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Tariff RAB (Bn€)

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Net Income adj. (Bn€)

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Driving long-term value through solid, measurable and sustainable growth

1) 2025 Normalized EBITDA excludes 52 M€ of 2024 one-off revenues related to deflator update. EBITDA adj. without normalization is equal to 2,969 M€

2) 2025 Normalized Net Income following EBITDA normalization, affiliates normalization (-5 M€ of Italgas regulatory one-off related to 2020-2024 period), net financial expenses normalization (-8 M€ related to financial income one-off on OLT shareholder loan) and tax effects (+14M€), Net Income adj. without normalization is equal to 1,422 M€


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Comparison vs Old Plan

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EBITDA adj. (Bn€)

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Net Income adj. (Bn€)

Investments increase driving higher profitability

1) 2025 Normalized EBITDA excludes 52 M€ of 2024 one-off revenues related to deflator update. EBITDA adj. without normalization is equal to 2,969 M€

2) Normalized Value equal to 1,365 M€ following EBITDA, affiliates and net financial expenses normalization. 1,422 M€ 2025 Net Profit value without normalization


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Investments acceleration on core regulated business

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Note: Net of grants, including OLT acquisition. Total investments gross of grants: 14.4 BnE
1) To make the comparison between the two plans consistent, some investments from the previous plan have been reclassified in line with the classification of the new plan


2026-2030 Investments break-down
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Taxonomy

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  • H₂ Ready
  • Market Solutions
  • H₂ + CCS
  • Capitalization & Technology
  • Net Zero Investments
  • Maintenance & Other

  • Capex Taxonomy aligned

Technical Investments

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  • Development
  • DT&T
  • Maintenance
  • Other
  • Replacements

  • RDGs

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  • SDG 9 - Industry, innovation and infrastructure
  • SDG 13 - Climate Action
  • SDG 7 - Affordable and clean energy
  • SDG 12 - Responsible consumption & production
  • Other SDGs
  • Not Aligned

Capex plan fully on track with 40%² taxonomy and 55% SDGs aligned

1) Technical investments gross of grants, including OLT.
2) Does not include business combinations


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Rock-solid delivery engine

Execution capabilities

  • Projects rising by number and complexity
  • >1,200 active sites (+54% YoY) as of Dec 2025
  • >270 engineering & construction projects over the plan¹

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Technologies and suppliers

Advanced technologies

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Micro-tunneling

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Direct Pipe

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Tunnel & TBM

Expanding supplier network

2,800 people
28 active contractors

350 people
Project Supervisions

Proven execution track-record with ~ 70% of core investments authorized²

1) Within the TYNDP for a total value exceeding 14 Bnf.
2) Related to projects undergoing Public Authorization, for which the Environmental Impact Assessment has already been obtained but have not yet received the Single Permitting Procedure (ie 'Autorizzazione Unica')


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Tariff RAB

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Bn€

Key drivers

  • Transport accounting for ~ 75% of the total increase, followed by Storage
  • LNG includes OLT acquisition
  • CCS starts contributing from 2029

Investments in core assets support RAB growth

Note: OLT acquisition (LNG) Tariff RAB equal to 0.7 Bn€ expected in 2026


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EBITDA

Bn€
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Key drivers

Regulated:

  • RAB inflation³
  • New investments
  • OLT consolidation
  • CO2 network (from 2029)

Market Solutions:

  • Biomethane deconsolidation
  • Energy Efficiency growth

Regulated business drives EBITDA, ensuring visibility and cash flow generation

1) 2025 Normalized Value which excludes 52 M€ of 2024 one off Deflator revenue

2) Includes WACC, Fast money effect, Input and Output based incentives

3) - 1.8% on average for revenues 2026-2030


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& & 1

Associates

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ME

Key Drivers

  • Italian assets growing contribution
  • Efficiency and commercial offering on mature assets (SeaCorridor, Austrian associates, Teréga)
  • Desfa development plan and TAP expansion

M&A included in the Plan

  • OLT acquisition
  • Italgas exchangeable bond refinancing

Active portfolio management driving growing Associates’ contribution

1) 2025 Normalized Associates Contribution excludes 5 M€ of regulatory one-off on Italgas contribution related to 2020-2024 period and other minor adjustments


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Net Income

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Bn€

Key drivers

  • Net income growth supported by higher EBITDA
  • Industrial investments expand the asset base, increasing D&A
  • Higher net financial expenses

Industrial investments underpinning robust growth

1) Normalized Value following EBITDA, affiliates and net financial expenses normalization. 1,422 M€ 2025 Net Profit value without normalization


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Emission reduction targets

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Scope 1&2 targets¹ (ktCO2e)
In line with 1.5°²

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Scope 3 emissions target¹ (ktCO2e)
1.5°/ well below 2°²

Carbon neutrality by 2040 and Net Zero by 2050

1) On Regulated perimeter as of 2022; 2) Based on SBTi general methodology
3) Baseline adjusted according to the Recalculation Policy; 4) On full Sham Group perimeter
5) CARBON NEUTRALITY: requires to fully offset the residual emissions;
6) NET ZERO: requires at least -90% emissions vs. base year and the neutralization of residual emissions through permanent carbon removals
7) Includes: fuel & energy not included in Scope 1&2, business travel and employee commuting.

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Financial structure

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Cash flow

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Highlights

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FFO/Net Debt²

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(Net Debt - BVEP⁶)/EBITDA

Strong financial discipline preserved throughout the plan

1) Comprises other equity movements, mainly a) Italgas exchangeable bond for approx. 0.4 Bnₑb) changes in consolidation area for OLT for approx. 0.4 Bnₑ and c) ca. 0.2 Bnₑ hybrid bond coupon payments
2) Calculated based on Moody's methodology
3) % on Total Committed Funding

4) +/-1% Flexibility on target
5) Shaded area consistent with S&P 11% threshold for A- and Moody's 9% threshold for Baa2
6) Book Value of Equity participations


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Steady annual growth in DPS confirmed and extended


2026 Guidance

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Investments FY 2025 Guidance FY 2026 2026-2030
Tariff RAB 2.8 Bn€
• 2.6 Bn€ Core, CCS & H_{2}
• 0.2 Bn€ Market Solutions ~ 2.8^{1} Bn€
• 2.6 Bn€ Core, CCS & H_{2}
• 0.2 Bn€ Market Solutions 13.7 Bn€
(net of grants)
Adj. EBITDA
Normalized 26.2 Bn€
2.97 Bn€
2.92 Bn€ ~ 28.8^{2} Bn€
~ 3.1 Bn€
~ +6%^{3} ~ 5.7% CAGR
~ 5.4% CAGR
~ +30%^{3}
Adj. Net income
Normalized 1.42 Bn€
1.37 Bn€ > 1.45 Bn€^{4}
~ +6%^{3} ~ 4.5% CAGR
~ +24%^{3}
DPS ~ 0.30 € ~ 0.31 € ~ 0.37^{5} €
Net debt 17.5 Bn€ ~ 19.0 Bn€ ~ 23.8 Bn€^{6}

1) Net of around 400M€ of grants mainly related to Adriatic Line (vs around 100M€ in 2025). Includes OLT Enterprise value and technical capex, net of the stake already held.
2) Includes ~ 700 M€ OLT RAB
3) Calculated versus Normalized values
4) The guidance includes the impact of around 40M€ related to IRAP increase following Energy Decree.
1.5 Bn€ excluding the impact of the Energy Decree
5) 2030 DPS
6) 2030 Net Debt

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Asset rotation program

On-top of Business Plan projections

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| RAB
1.8 Bn€ higher 2030 Tariff RAB
+1% 2025-30 CAGR | Net Debt
~ 400 M€ lower 2030 Net Debt²
+~ 0.50% average³
FFO/Net Debt |
| --- | --- |
| EBITDA adj.
6% accretion by 2030
+1% 2025-30 CAGR | Net Income adj.
Neutral |

Value accretive asset rotation program providing concrete upside

1) Calculated as Net Debt impact
2) Including effect of cash in from disposals, cash out for acquisitions and debt consolidation and deconsolidation
3) Average 2028-2030
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Agenda

FY 2025

Scenario

From Energy Transition to Energy Integration

Business Plan

Vision beyond 2030

Closing remarks


Vision beyond 2030

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Fostering our Core Strategy

Regulated asset base long-term growth

Capex and RAB mix gradually rebalancing

Technology increasingly more pivotal

Industry & Technology

54


2035 Ambition

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Capex (Bn€)
Natural Gas
CCS
H2
Market Solutions
40%
Taxonomy aligned¹
46%
~14
90%
2026-30
2031-35
~ 28 Bn€ net of grants²

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RAB evolution (Bn€)
Natural Gas
CCS
H2
~26.2
2025A
2030E
2035E
1.6x RAB 2035 vs. 2025

RAB growth gradually incorporating new molecules

1) Gross of grants and including IFRS 16 ; Does not include business combinations
2) Vs. 27.1 Bn€ Plan 2025-2034


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Agenda

FY 2025

Scenario

From Energy Transition to Energy Integration

Business Plan

Vision beyond 2030

Closing remarks


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Strong commitment to deliver solid industrial growth ...

Main targets

  • Solid and visible industrial growth coupled with financial strength
  • Active portfolio management driven by industrial, operational and financial optimization
  • Further upside from industrial-backed asset rotation

Enablers

  • Digital & Energy Tech innovation to strengthen the technology leadership
  • People & Organization model evolution to drive Group transformation
  • Sustainability & Stakeholder awareness to play a pivotal role in the market evolution

Towards Energy Integration

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... with attractive returns and a concrete upside

2030 Business Plan 2030 including Asset Rotation
Tariff RAB 34.5 Bn€ 36.3 Bn€
Adj. EBITDA ~ 5.4% CAGR¹ ~ 6.4% CAGR¹
Adj. Net income ~ 4.5% CAGR¹ ~ 4.5% CAGR¹
Net debt ~ 23.8 Bn€ ~ 23.4 Bn€
FFO/ND ≥11.5%² ~ 12%²

Clear, solid and fully focused strategy underpinning value creation

1) CAGR 2025-2030
2) Average 2028-2030


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Towards energy integration

2026-2030 Strategic Plan


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FINANCIAL ANNEX


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FY 2025


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2025 Income Statement

M€ FY 2024 FY 2025 Change Change %
Revenues 3,568 3,885 317 8.9%
Operating expenses (815) (916) (101) 12.4%
EBITDA Adj. 2,753 2,969 216 7.8%
Depreciation & amortisation (1,019) (1,124) (105) 10.3%
EBIT Adj. 1,734 1,845 111 6.4%
Net interest income (expenses) (331) (331) - -
Net income from associates 326 380 54 16.6%
EBT Adj. 1,729 1,894 165 9.5%
Income taxes (442) (475) (33) 7.5%
NET PROFIT BEFORE THIRD PARTIES Adj. 1,287 1,419 132 10.3%
Third Parties Net Profit 2 3 1
NET PROFIT Adj. 1,289 1,422 133 10.3%
EBITDA REPORTED 2,705 2,952 247 9.1%
EBIT REPORTED 1,676 1,813 137 8.2%
NET PROFIT REPORTED 1,259 1,270 11 0.9%

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2025 Revenues

M€ FY 2024 FY 2025 Change Change %
Regulated revenues 3,201 3,496 295 9.2%
Transport 2,459 2,686 227 9.2%
Storage 586 630 44 7.5%
LNG 156 180 24 -
Non regulated revenues 36 47 11 30.6%
Total Gas Infrastructure Businesses revenues 3,237 3,543 306 9.5%
Market Solutions revenues 331 342 11 3.3%
TOTAL REVENUES 3,568 3,885 317 8.9%

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2025 Operating costs

M€ FY 2024 FY 2025 Change Change %
Gas Infrastructure Businesses costs 491 584 93 18.9%
Variable costs 54 59 5 9.3%
Fixed costs 369 451 82 22.2%
Other costs 68 74 6 8.8%
Market Solutions costs 324 332 8 2.5%
TOTAL COSTS 815 916 101 12.4%

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Balance Sheet

€ mn 2024 2025 Change Change %
Net invested capital 25,211 26,787 1,576 6.3%
Fixed capital 24,884 27,035 2,151 8.6%
Tangible fixed assets 21,109 22,983 1,874 8.9%
Intangible fixed assets 1,560 1,970 410 26.3%
Equity-accounted investments 3,259 3,202 (57) (1.7%)
Other Financial assets 150 104 (46) (30.7%)
Net payables for investments (1,194) (1,224) (30) 2.5%
Net working capital 371 (215) (586)
Receivables 7,530 6,665 (865) (11.5%)
Liabilities (7,159) (6,880) 279 (3.9%)
Provisions for employee benefits (44) (33) 11 (25.0%)
Net financial debt 16,238 17,509 1,271 7.8%
Shareholders' equity 8,973 9,278 305 3.4%

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Alternative performance indicators reconciliation

ME FY 2024 FY 2025 Change Change %
EBITDA 2,705 2,952 247 9.1%
Exclusion of special items:
- Early retirement fund 17
- Provisions for risk and charges (2)
- Charges for a settlement agreement 33 17 (16) (48.5%)
Adj. EBITDA 2,753 2,969 216 7.8%
EBIT 1,676 1,813 137 8.2%
Exclusion of special items:
- Special items from EBITDA 48 17 (31) (64.6%)
- Write-down of non current assets 10 15 5 50.0%
Adj. EBIT 1,734 1,845 111 6.4%
Net profit before non-controlling interests 1,257 1,267 10 0.8%
Exclusion of special items:
- Special items from EBIT 58 32 (26) (44.8%)
- Fair Value of derivative financial instruments 319 319
- Impairment on Industrie De Nora stake 71 71
- Capital gain from disposal of ADNOC stake (123) (123)
- Other expenses (income) from investments 9 2 (7) (77.8%)
- Incomes related to Italgas capital increase (65) (65)
- Other income (expenses) from equity investments (17) (6) 11 (64.7%)
- Tax effect on special items (20) (78) (58)
Adj. Net profit before non-controlling interests 1,287 1,419 132 10.3%
Non-controlling interests (2) (3) (1) 50.0%
Adj. Net profit 1,289 1,422 133 10.3%

1) Including Corporate Capex
2) Including Small Scale LNG

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2025 Investments detailed by business

€m FY 2024 FY 2025
Transport^{1} 2,193 2,069
Storage 269 311
LNG^{2} 223 98
H2/CCS 65 86
Market Solutions 125 194
TOTAL 2,875 2,758

2025 Investments


2025 Associates

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Pro-quota Net Income adj. FY 2025 (M€)
71 54 44
--- --- ---

Double digit increase driven by TAG and Italian Associates

1) ADNOC Gas Pipelines stake disposal from February 2025 for 233 M€


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Associates (1/2)

Company Geography Strategic Value Investment year % Book Value 31.12.2025 Net Income contribution (FY25) Financial and Industrial partners
SeaCorridor Tunisia • First Italian pipeline import route after drop of Russian imports
• Strategic corridor for H2 import from North Africa 2023 49,90% € 537 m € 54 m
Desfa Greece • Sizeable capex plan supporting domestic lignite phase out and South-Eastern Europe market development 2018 35,64%^{1,2} € 226 m € 21 m
TAP Greece
Albania
Italy • In 2025 covered approx. 16% of Italian demand
• 1.2 bcm expansion from 2026 2015 20,00% € 422 m € 71 m
TAG Austria • New regulatory framework with volume sterilization from 2025 2014 89,22%^{2} € 256 m € 31 m
GCA Austria • Strategic H2 corridor toward Central Europe 2016 19,60%^{1} € 97 m -
EMG Egypt
Israel • Export route from Israeli to Egypt
• Strategic asset in the East-Med area 2021 25,00% € 65 m € 5 m
De Nora Italy • Leverage on on electrochemical, water treatment technologies and know how 2021 21,59%^{2} € 311 m n.d.^{3}
OLT Italy • Strategic assets for the security and diversification of Italy's energy supplies 2020 49,07% € 84 m n.d.^{3}
Adriatic LNG Italy 2017 30,00% € 208 m n.d.^{3}

1) Indirect participation
2) Desfa: 39.60% voting rights; TAG: 84.47% voting rights; De Nora: 25.99% voting rights
3) Not disclosed yet


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Associates (2/2)

Company Geography Strategic Value Investment year % Book Value 31.12.2025 Net Income contribution (FY25) Financial and Industrial partners
Teréga France • Gas infrastructure operator in the South-West of France
• Partner of H2 Med Corridor 2013 40.50% € 459 m € 44 m GIC
EDF Invest
Interconnector UK-Belgium • Bi-directional gas pipeline between the UK and Belgium
• Capacity booked at almost 50% until 2026 2012 23.68% € 67 m € 13 m fluxys
Italgas Italy • Leader operator in the Italian gas distribution and third in Europe 2016 (spin-off) 11.40% € 434 m n.d.¹ edp
RETI

1) Not disclosed yet


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Business Plan


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Key Business Plan assumptions

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WACC real pre-tax

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Inflation⁵ impact on Revenues

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Parameters embedded in WACC¹

Sensitivity

  • +/- 1% change in Inflation → +/- ~ 20 M€ average impact on net income
  • +/- 0.1% change in WACC⁴ → +/- ~ 22 M€ average impact on net income

1) Snam elaboration based on Bloomberg-Oxford Forward Curve. For each year, parameters are calculated as the average between 4Q t-2 and 3Q t-1
2) Country risk premium: the difference between 10Y BTP rate of return and risk-free rate
3) Nominal Risk free: rate of return of risk-free assets. In nominal terms, calculated as the average 10Y bonds rate of returns of countries with at least AA rating according to S&P classification (Germany, Belgium, Netherlands), excluding France from 2028's WACCs
4) Average RAB inflation of 1.8% for transport, storage and LNG; 6) Applied to the whole RAB (average 2026-2030)

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Rates assumptions

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3m Euribor

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5Y Mid Swap

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10Y Mid Swap

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10Y BTP


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Regulatory framework

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1) Introduction of experimental regulatory mechanisms for the progressive evolution towards Full-ROSS (potentially from 2028)

2) Introduction of some ROSS common regulatory principles to all businesses (e.g., regulatory time lag, revaluation, etc.)


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Output based services: currently in place and potential ones

  1. System Balancing services
  2. Storage/LNG flexibility services
  3. Other services/incentives
  4. Potential new incentives

  5. Demand forecast

  6. TSO market actions
  7. Residual Balancing
  8. Gas system procurement

  9. Short term unbundled capacity

  10. Injection/withdrawal flexibility
  11. LNG capacity overperformance
  12. LNG storage and send-out flexibility

  13. Asset Health (fully depreciated assets)

  14. Minimization of Shrinkage
  15. Default and administrative services (error corrections)

  16. Customer satisfaction

  17. Asset Resilience
  18. Incentives based on ESG metrics

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CENTRE

0

Investments breakdown

Investments by year (Bn€, net of grants¹)

2026 2027 2028 2029 2030 Total
Transport² 1.7 2.2 2.3 1.8 1.2 9.2
Storage 0.3 0.3 0.5 0.5 0.5 2.1
LNG 0.6 0.1 0.1 0.1 0.1 1.0
H2+CCS 0.1 0.2 0.3 0.2 0.2 1.0
Market Solutions 0.2 0.1 0.1 0.0 0.0 0.4
Total 2.8 2.9 3.3 2.6 2.1 13.7

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Investments breakdown (Bn€, net of grants)

1) Figures may not add up due to rounding

2) Including corporate capex


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🧠

GOVERNANCE ANNEX


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Board of Directors

Board of Directors Alessandro Zehentner Agostino Scornajenchi Paola Panzeri Laura Cavatorta Augusta Iannini Piero Manzoni Andrea Mascetti Qinjing Shen Esedra Chiacchella
Role Chairman CEO Non-executive Director Non-executive Director Non-executive Director Non-executive Director Non-Executive Director Non-Executive Director Non-executive Director
Independent Director^{1}
Gender Male Male Female Female Female Male Male Male Female
First appointment 2025 2025 2025 2019 2022 2022 2025 2022 2025
Minority-elected
Committee^{2}
CRS ✓^{(C)}
AC ✓^{(C)}
RPT ✓^{(C)}

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Established the following internal Committees:
- Control, Risk and Sustainability Committee, merging previous control, risk, and sustainability responsibilities
- Appointments and Compensation Committee, confirmed in its existing structure and functions
- Related Party Transactions Committee, with dedicated oversight responsibilities

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1) In accordance with the Italian Corporate Governance Code and the Consolidated Law on Finance
2) From May 14, 2025
CRS = Control, Risk and Sustainability Committee (67% independent), AC= Appointments and Compensation Committee (100% independent), and RPT = Related Parties Transactions Committee (100% independent). All key Committees chaired by independent Non-Executive
Directors.


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Board of Directors - Leadership

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CHAIR

Alessandro Zehentner
Chairman of Snam since May 2025

  • Former executive with international experience in automotive, engineering, and renewable energy sectors
  • Held leadership positions at Watt Industries, Röchling, Johnson Controls, Lear Corporation, Cooper Standard, and DNV
  • Expertise in procurement, project management, financial analysis, and regulatory compliance across Europe, the US, and Latin America
  • Board member at Enel since 2023
  • Former Board roles: Ferrovia Trento Malé, Alpikom, Trentino Digitale

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CEO

Agostino Scornajenchi
CEO of Snam since May 2025

  • 30 years of experience in energy infrastructure and finance across major Italian and international groups
  • Former CEO & GM of CDP Venture Capital Sgr (2023–2025)
  • Former CFO of Terna (2017–2023); led strategic planning and sustainable finance initiatives
  • Past roles: Engie Energy Southern Europe (CFO), Poste Italiane (Strategic Planning), Aceaelectrabel (CFO), Enel Group (Generation Division)
  • Former Executive Chairman of Brugg Cables AG following its acquisition by Terna
  • Chairman of ANDAF – Italy's National Association of CFOs since 2021

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Board of Directors - Directors

Paola Panzeri

Director of Snam since May 2025
- Lawyer and founding partner of Studio Legale Fumagalli & Panzeri, specialising in civil and procedural law
- Extensive experience in corporate legal consulting
- Board member of FNM S.p.A. and Chair of its Social Responsibility and Ethics Committee since 2024
- Board roles at Fondazione IRCCS Policlinico San Matteo and former director at IRCCS Istituto Nazionale dei Tumori
- Former Board member of Silea S.p.A. and advisor to Lombardy Region on legality and anti-mafia efforts

Laura Cavatorta

Director of Snam since April 2019
- Over 20 years of executive experience in the air transport sector, with expertise in restructuring, M&A, and HR
- Former CEO of Air One; held operational leadership roles managing up to 5,000 people
- Expert in corporate governance, sustainability, and innovation across energy, telecom, and retail sectors
- Former Director at Inwit (Chair of the Sustainability Committee) and former Director at Unieuro
- Vice-Chair of Fuori Quota and founding member of the ESG European Institute; active advocate for gender equality and sustainable business

Augusta Iannini

Director of Snam since April 2022
- Lawyer and former magistrate with a 35-year career in criminal justice and senior roles at the Ministry of Justice
- Former Vice-Chair of the Italian Data Protection Authority (2012-2020)
- Board member of Lottomatica and Ospedale San Raffaele
- Chair of the Supervisory Boards of Esselunga and subsidiaries
- Vice-President of the A.N.C.I.C. Monitoring Body;
- Commissioner for the TMB plant in Guidonia
- Author of legal publications and recipient of multiple national honours, including the Bellisario and Minerva Prizes

Piero Manzoni

Director of Snam since April 2022
- Mechanical engineer with MBA; founder and CEO of Simbiosi and NeoruraleHub, focused on circular economy, biodiversity, and climate resilience
- Expert in sustainable innovation, renewable energy, and regenerative agri-food systems
- Former CEO of Falck Renewables, Atel Energia (now Alpiq), and held senior roles at Siemens and ABB in Italy and abroad
- Vice-Chair of Confindustria Cisambiente and board member at Assolombarda's Life Sciences Group
- Member of European Land Owner & Friends of Countryside

Andrea Mascetti

Director of Snam since May 2025
- Lawyer and founding partner of a firm specialising in corporate, administrative, and criminal law, with a focus on Decree 231/2001
- Director at BPER Banca (Compensation and Sustainability Committees) and Chair of Finlombarda and its ESG Committee
- Member of Enel's Supervisory Body and former Director and Committee Chair at Italgas
- Advises companies across energy, finance, infrastructure, health, and technology sectors
- Qualified to practice before Italy's highest courts; holds postgraduate specialisations in corporate and criminal liability law

Qinjing Shen

Director of Snam since February 2022
- Electrical engineer with extensive international experience in energy infrastructure and cross-border M&A
- Currently Chief Representative of State Grid in Italy and Board member at CDP Reti, Italgas, and Terna
- Former Director of Business Development & Strategy at State Grid International; led multi-billion dollar transactions in Brazil, Chile, and Europe
- Over 20 years' experience in transmission, M&A, and international investment across Asia, Latin America, and Europe
- Key roles in landmark energy projects, including Belo Monte UHVDC Transmission and biodiversity conservation initiatives

Esedra Chiacchella

Director of Snam since May 2025
- Head of Public Administration at Cassa Depositi e Prestiti; former Head of Financial Institutions Relations
- Expertise in debt capital markets, institutional finance, and public-private partnerships
- Over 20 years in investment banking, with senior roles at Citigroup, HSBC, Natexis, and Banca Profilo
- Former Chair of GreenIT and current non-executive Director of the Italian Investment Fund (FII)
- Past board roles include SACE BT and ItsArt


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Shareholders Snapshot – as of September 2025

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Structure (%)

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Geographical break down (%)

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ESG funds represent 23.4% of total Institutional Investors

1) Italy-Strategic holders includes Bank of Italy and CDP Reti

2) Italy-Retails includes the participation of Romano Minozzi equal to
7.4%
Source: Nasdaq analysis, September 2025


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Cybersecurity (1/2)

Scorecard:
100% Projects covered by
Security by Design cyber
approach: achieved

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Security Intelligence & Security Incident Management

The incidents prevention and management mitigate impact on society by ensuring service continuity, protecting personal data, and strengthening stakeholder trust through responsible and sustainable cyber risk management

Cyber Security Incident Management model is adopted to counteract cyber threats, for the year 2025, the Cyber Soc Team Managed:

  • 24/7 security monitoring
  • 19.754 security events
  • 2,380 Cyber Threat Intelligence Alerts
  • 421 potentially compromised accounts¹
  • 51 compromised third parties

In January 2025, a cyber security insurance has been subscribed with the aim of further improving cyber incidents response and increasing resilience

Security by design

Security by Design enhances trust in digital solutions, which have become essential for business and everyday life, by:

  • Ensuring security from the earliest development stages
  • Creating a more resilient digital infrastructure
  • Spreading the knowledge of good security practices
  • Promoting ethical and sustainable management to safeguard societal interests

For the year 2025, the process was applied to 26 projects

Cybersecurity is fundamental in preventing and managing adverse events that may compromise the confidentiality and integrity of information, the availability of business processes, and, ultimately, the interests of diverse stakeholder groups belonging our society

1) Both accounts reported by the intelligence area and those detected by CyberSOC through monitoring (clicks on phishing links, suspicious logins etc.) are considered in the calculation of accounts


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Cybersecurity (2/2)

Scorecard:
100% Projects covered by
Security by Design cyber
approach: achieved

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Security Awareness & Training

Awareness is essential for shaping informed digital employees capable of using technologies safely and responsibly, thereby actively contributing to sustainable risk management and the protection of collective interests

The human factor is a core aspect for improving cyber security. Initiatives to increase awareness performed in 2025 for our people:

  • 8 White Phishing campaigns for a total of 23,900 e-mails sent in 2025
  • 5 communications with awareness infographics
  • 21 mass communications sent by the Cyber SOC to inform people on security events
  • 7 classroom training sessions for employees of our peripheral offices
  • Cyber Security awareness started using desktop pop up notifications for all persons
  • Incident management simulations:
  • 2 blue team simulations
  • 1 simulation with Italian institutions
  • 9 business resilience simulations
  • 2 mass notification simulations

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Tax Transparency Report

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The document, drafted on voluntary basis and published for the third time in 2025 (fiscal year 2024) to:

  • Promote a transparent and collaborative relationship with all stakeholders
  • Represent tax governance and how the tax strategy and tax risk management are implemented
  • Provide an overview of the contribution of taxes paid domestically and internationally by the Group
Snam's journey to Transparency Tax transparency improvement process from 2018 to 2025
Snam and sustainability Tax role in the ESG area and tax infrastructure strengthening
Focus on local community involvement and sustainable finance
Tax Reporting Total Tax Contribution overview, distinguishing between taxes borne and collected
Reconciliation between the theoretical tax burden and the actual tax charge
Tax Strategy Overview of strategic tax decisions and evidence of the Company approach to Tax reform and major activities
Tax Risk Controls Summary of tax control system architecture
Relationships with Tax Authorities and all relevant stakeholders
Integration of the Tax Control Framework with other corporate risk management models (Model 231 and Model 262)

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Risk Management

Objectives...

  • Higher risk-informed contribution to strategic processes in line with the risk appetite approved by the Board of Directors
  • Improved usability and expansion of the informative scope of risk analyses
  • Enhanced integration with sustainability strategy & reporting (financial materiality analysis)

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...into achievements

  • Risk-based analysis of the 2026-2030 Strategic Plan
  • Continuous review and monitoring of our risk indicators, at both BoD level (Risk Appetite Framework) and management level (i.e. KRI Framework, functioning as a cascading of RAF)
  • Evolutions of methodologies and processes to enhance the integration between Risk Management and risk "verticals"
  • Consolidation of our Climate & Biodiversity Risk Management (CBRM) framework, through continuous update from science-based references, and strong analysis of our climate adaptation measures

Enhancing the integration of a risk-informed perspective in Snam's decisions

1) Risk Appetite Framework;

2) Key Risk Indicator


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Climate & Biodiversity risks analysis

Physical risks

Exposure of company assets to climatic hazards

Outcome

Short/medium-term
- ☑ ○ ○ ○
- Negligible due to physical safeguards (e.g., asset features, preventive and reactive mitigants) and non-physical safeguards (e.g., insurance coverage)

Long-term
- ☑ ○ ○ ○
- Non relevant climate exposure under RCP 1.9, and 4.5¹ long term scenarios
- More pronounced climate exposure under the worst-case RCP scenario 8.5².

Negligible physical risk thanks to assets features and safeguards. Maintaining the current asset resilience is key to enable a long-term adaptation also under the worst-case scenario

Transition risks and opportunities

Market, Regulatory, Technological and Reputational risks related to climate change mitigation and adaptation

Outcome
Market
Risks
Opportunities
Regulatory
Opportunities
Risks
Opportunities
Technological
Opportunities
Risks
Opportunities
Reputational
Opportunities

Limited impact from transition risks in all time horizons and long-term scenarios with solid opportunities thanks to the role of Snam as enabler of the energy integration

1) RCP scenario 1.9;4.5: Limited climatic evolution
2) RCP Scenario 8.5: Significant intensification of natural phenomena. The analysis showed that some physical risks will become more significant over the long term. Awareness of what might happen in future enables Snam to plan its risk response, ensuring adequate and effective action, even in the event of a worst-case scenario
Legend:
Residual severity under the MID Scenario (RCP 4.5 – SSP2 – IEA APS: Current economic growth trend without major variations)
Low
Medium
High
Critical
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Climate Adaptation strategy

Strategic goals

  1. Ensure the resilience of infrastructures today and in the future against the impacts of extreme weather events (primarily hydrogeological events), limiting structural damage to the site and to the surrounding territory
  2. Preserve the continuity of Snam's service by guaranteeing the operational continuity of sites or minimizing recovery time
  3. Strengthen knowledge of the territory and climate-related phenomena through continuous and timely monitoring activities, enabling the anticipation of complex events as well as through investments in studies and R&D
  4. Protect workers, ensuring they can operate under safe conditions thanks to an adequate oversight of climate-related risks

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Adaptation framework

The adaptation strategy enables to better address climate change risk


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SUSTAINABILITY ANNEX


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European
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Track record

Track record and 2025 achievements

  • Methane emissions -67%¹ vs 2015
  • 5 years Gold standard by UNEP
  • Transition plan published
  • 2025 Scope 1+2 emissions down -34.8% vs 2022 baseline
  • Zero Net Conversion on biodiversity

Targets

  • By 2030: -40% Scope 1+2 & -30% Scope 3
  • Carbon Neutrality on Scope 1 & 2 by 2040 and Net Zero on all emissions by 2050
  • Net positive impact on biodiversity by 2027

Investments

  • Capex alignment to EU taxonomy
  • 2026-30: 40%
  • 2031-35: 46%
  • Sustainable Finance
  • 2025 at 85%
  • 95%² target by 2030

Credible roadmap

  • First TSO
  • Moody's Net Zero Assessment on our emissions, confirming trajectory aligned with Paris-consistent pathway
  • In the SBTN corporate engagement program

1) Preliminary data on fully regulated perimeter
2) +/-1% Flexibility on target


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Sustainability Scorecard: Actuals vs targets 2025

KPIs 2025 Actual 2025 Target
Local Communit. · Benefits for local communities over reg. revenues (%) -1 -1
· Value released at local communities (€M) 1,908 >1,000
· Avg. customer satisfac. rate for service quality (1-10) 7.4 ≥8
· Gas Transportation operational availability (%) >99 >99
Carbon Neutrality · Avoided & Captured CO₂ emissions (ktCO₂e)¹ 142 147
· Invest. Related to the CCS Ravenna Project Phase 1+2 and CO2 onshore transportation (€M) 153 178
· ESG criteria in proc. procedures (% of spending)¹ 51 45
· RES on total electricity purchased (%)¹ 56² 70–75
· Spending on total procured with decarb. plan from suppliers (%)¹ 54 35
Emissions · Scope 1 & 2 reduction vs 2022 (%)¹ 35 -
· Scope 3 reduction vs 2022 (%)¹ 14 -
· Reduction of total natural gas emissions vs 2015 (%) 67 59.7
Biodiversity & Regener. · Net Positive impact by 2027 - -
· Vegetation restored in areas of pipes constr. and new forestation (%) 150 ≥100
KPIs 2025 Actual 2025 Target
--- --- --- ---
People · Employees engagement index (%) - >80
· Women in exec. and middle-mgmt. roles (%) 26.8 26.5
· IpFG (Combined Frequency and Severity Index) 0.59 0.55
· Gender pay gap (%)³ -7.8 -
· Participation in welfare initiatives (%) 79 78
· Training hours delivered to employees (h/capita) 45 37
Transform. Innovation · Investments in Innovation as % of revenues 3 3
· AI enabled IT applications (% of total) 17.3 16.5
· Proj. covered by Security by Design cyber approach (%) 100 100
Financial & Principals · ESG Finance over total funding available (%) 85 -
· CapEx EU Taxonomy-aligned (% of total) 34⁴ -
· Capex SDG-aligned (% of total) 54 -
· Zero Net Conversion by 2024

1) On regulated perimeter
2) RES: 73.42 net of Stogit Adriatica (consolidated in March 2025)
3) GPG: Excluding CEO. Calculated as per ESRS methodology
4) CapEx EU Taxonomy Aligned: including Business Aggregation (as per CSRD calculation) = 28%
KPI in ESG Finance Framework
KPI reviewed vs scorecard 2025-2029


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Sustainability Scorecard: 2026-30 targets

KPIs 2025 Actual 2026 Target 2030 Target
Local Communit. - Benefits for local communities over reg. revenues (%) -1 -1 -1
- Value released at local communities (€M) 1,908 >1,000 >1,000
© Customer satisfac. rate for service quality (1-10) 6.9 ≥7.4 ≥8
- Gas Transportation operational availability (%) >99 >99 >99
Carbon Neutrality - Avoided & Captured CO₂ emissions (ktCO₂e)¹ 142 84 957
- Invest. Related to the CCS Ravenna Project Phase 1+2 and CO2 onshore transportation (€M) 153 190 870
- ESG criteria in proc. procedures (% of spending)³ 51 50 50
- RES on total electricity purchased (%)³ 56* 75-80 100
- Spending on total procured with decarb. plan from suppliers (%)² 54 50 60
Emissions - Scope 1 & 2 reduction vs 2022 (%)*³,⁴ 35 - 40
© Scope 3 reduction vs 2022 (%)³,⁸ 14 - 30
- Reduction of total natural gas emissions vs 2015 (%) 67 66.5 70.5
Biodiversity & Regener. - Net Positive impact by 2027 - - -
- Vegetation restored in areas of pipes constr. and new forestation (%) 110 ≥99 ≥99
KPIs 2025 Actual 2026 Target 2030 Target
--- --- --- --- ---
People - Employees engagement index (%) - ≥80 ≥80
- Women in exec. and middle-mgmt. roles (%)* 26.8 27 ≥28
© IpFG (Combined Frequency and Severity Index)* 0.38 0.45 --⁴
- Gender pay gap (%)⁵ -7.8 - +/-5
- Participation in welfare initiatives (%) 79 80 82
- Training hours delivered to employees (h/capita) 45 41 42
Transform. Innovation - Investments in Innovation as % of revenues 3 3 3
- AI enabled IT applications (% of total) 17.3 19 40
- Proj. covered by Security by Design cyber approach (%) 100 100 100
Financial & Principals - ESG Finance over total funding available (%)⁶ 85 -90 -95
- CapEx EU Taxonomy-aligned (% of total) 34* - -
- Capex SDG-aligned (% of total) 54 - -
- Zero Net Conversion by 2024

1) Avoided CO2 TGT 2026: not including Bioenerys. TGT 2030: Subject to Final Investment Decision (FID) on Ravenna CCS Project
2) RES: 73.42 net of Stogit Adriatica (consolidated in March 2025)
3) On regulated perimeter
4) Target aligned with yearly budget's aspiration (MBO). Defined according to the goal setting's timeline
5) GPG: Excluding CEO. Calculated as per ESRS methodology
6) ESG Finance over total funding available (%): level of tolerance ±1 p.p.

7) CapEx EU Taxonomy Aligned: including Business Aggregation (as per CSRD calculation) = 28%
A. Scope 1 & 2 reduction vs 2022 - 2027 TGT: (25%); 2032 TGT: (50%); 2035 TGT: (65%)
B. Scope 3 reduction vs 2022 - 2032 TGT: (35%)
* KPI undergoing Appointments and Compensation Committee's approval (Remuneration Policy)
KPI in ESG Finance Framework
© KPI reviewed vs scorecard 2025-2029


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Local Communities


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Local communities

Scorecard:

Benefits for local communities over reg. revenues ca. 1%
Value released at local communities > 1 Bn€

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1) From Income statement
2) Based on Italian Retail Investors at 16.2% (FY 2023), a total number of shares of 3,353,613,230 and a dividend per share in 2023 of 0.2820€
3) Included TARI, IMU and IRAP
4) Includes SRG and STOGIT "Oneri compensazioni ambientali" and "Sistemazione a Verde"; the figure is to be considered a partial of total "Compensations and mitigations"

2025
~ 3.1 M€
~ 2.7 M€
~ 0.3 M€
~ 6.1 M€
~ 19.7 M€⁴
~ 19.7 M€⁴
~ 167.3 M€
~ 402 M€
~ 569.3 M€
~ 1,219.9 M€
~ 92.6 M€
1,312.6 M€
1.908 M€

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Snam Foundation

Key results¹ 2025

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~€1.4M
Invested in general interest activities

26 Projects

Over 80.000 Beneficiaries

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1.571
Participating volunteers

7.322
Donated hours

Over 10.000
Training hours

Target 2026

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~€2.95M
Invested in general interest activities

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Over 30 Projects

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5 Volunteering projects

Highlights 2026: Empowering social inclusion nationwide

  • New partnerships with institutions
  • Vulnerable youth training & employment
  • Capacity-building activities for NGOs
  • Operational support for NGOs through corporate volunteering

1) Final data will be consolidated in Q1 2026


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Key Partnerships

Gas & LNG Industry

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Gas Infrastructure Europe

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GEEG
THE EUROPEAN GAS RESEARCH GROUP

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PROXIGAS

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EMGT
EAST MESTERS AND ANGAS FORUM

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ASSOLOMBARDA

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SGTTO

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Decarbonization

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CCSA
CCS Innovation

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EBA European Design Association

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NEST

Cross-sector strategic partnership

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United Nations
Global Compact
WORLD ENERGY COUNCIL

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CONFINDUSTRIA
BUSINESS OECD

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ACCI
ICMA

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MC
MedOr Italian Foundation
Alliance for Industry Decarbonization

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TRANSPARENCY INTERNATIONAL
the global business agency innovation
YSE


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Emissions Reduction


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Historical emissions evolution

Gas demand (Bcm)

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Scope 1,2 emissions¹ (regulated perimeter, ktCO2e)

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Scope 3 emissions⁷ (regulated business perimeter, ktCO2e)

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Market Solutions Business +1 +1 +4 +8 +67 +80 +102 +118 +321 +228 +528 +767
Snam 1.579 1.423 1.345 1.468 1.518 1.413 1.195 1.159 1.952 1.777 1.921 2.178

1) Figures including HFC emissions (minor contribution; <1.5)
2) Baseline 2022
3) Baseline adjusted 2022, including 2024 emissions of Piombino FSRU, in line with the Recalculation Policy
4) Regulated perimeter aligned with the target (without Piombino FSRU); 1,333 ktCO2e full regulated perimeter
5) Piombino FSRU emissions included, being the first full year of operation
6) Regulated perimeter aligned with the target (without Ravenna FSRU); 1,041 ktCO2e full regulated perimeter
7) The figure of 2022 Scope 3 regulated emissions is restated as it takes into account the emissions contribution of SeaCorridor (purchased in 2023)
8) Includes: fuel & energy not included in Scope 1&2, business travel and employee commuting. In the fuel & energy category, emissions linked to Ravenna FSRU are excluded for 2025 and will be considered starting from 2026, in line with the Recalculation Policy
9) Regulated perimeter aligned with the target (without Ravenna FSRU in cat. 3.3); 1,411 ktCO2e full regulated perimeter
10) CH4 emissions expressed in CO2 equivalent using a GWP equal to 29.8 (last GWP published by the IPCC in the 6th Assessment Report)


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Scope 1 & 2 emissions – roadmap to 2032

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1) 2022 baseline

2) 2022 baseline adjustment: 2024 actual of Plombino FSRU, Ravenna FSRU and OLT as per January 2026

3) Differences in gas demand, stored and regasified gas, including flows direction vs 2022

4) The target boundary includes land-related emissions and removals from biogenic feedstocks


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Methane emissions reduction achievements and targets

Replacement plan launched in 2015 to reduce methane emissions, implementing best practices and seeking new solutions / technologies

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Since 2020, Snam has joined the Oil & Gas Methane Partnership (OGMP) 2.0, a voluntary initiative launched by the United Nations Environment Programme (UNEP) to support Oil & Gas companies in reducing methane emissions.

Gold Standard by UNEP under OGMP 2.0 protocol, for the fifth consecutive year in recognition of the commitment undertaken by the Group in reporting and reducing emissions.

Strong track record and ambitious targets ahead of OGMP requests


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the energy

Dual fuels compressors to reduce combustion emissions

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Roadmap to install electric compression units

1) The investment plan considers also the replacement of 3 ELCOs at Brugherio plant, already supplied with green electricity, with more efficient ones, thus reducing energy consumption but not GHG emissions. For this reason, those ELCOs and the ones in Stogit Adriatican's (8 ELCOs) plants are not accounted within the ones with impact on Scope 1+2 Targets. Average emissions reduction per plant: 28 ktonCO2e

2) The replacement plan will be optimized on the back of the evolution of physical flow scenarios and to optimize the dispatching

3) The magnitude of the impact on each target will depend on the effective month of installation and utilization

4) 8 ELCOs of Stogit Adriatica, 3 at Brugherio and 1 at Malborghetto

Electric compressors units Installation Plan $^{1,2}$

1 ELCOs replaced at Malborghetto plant with impact on 2027 target

~ 12 MW installed capacity

Installation by # Compressors units to be replaced with ELCOs MW Installed capacity Impact on Scope 1+2 target by^{3}
2026 +2
~ 25 MW 2027
2030 +5
~ 80 MW 2032
2031 +3
~ 40 MW 2032
2033 +2
~ 35 MW 2035
2035 +1
~ 25 MW 2040
2041 +3
~ 75 MW 2050

12 ELCOs installed and operative at end 2025


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Scope 3 emissions

What categories do we report?

According to GHG Protocol:

Supply chain

  • Category 1: Purchased goods and services
  • Category 2: Capital goods
  • Category 4: Upstream transportation and distribution
  • Category 5: Waste generated in operations
  • Category 8: Upstream leased assets

Associates: Category 15: Investments

Other emissions:

  • Category 3: Fuel and energy-related activities not included in Scope 1 or 2
  • Category 6: Business Travel
  • Category 7: Employee commuting

New categories only for non-regulated business: 11 use of sold products and 13 Downstream Leased Assets

What about Category 11 "Use of sold products"?

Snam is a regulated transmission system operator (TSO), complies with Italian and European regulation¹ and has to grant security of supply and undiscriminated access

Activities are regulated by an independent regulatory agency which defines contractual terms and tariffs

Snam’s regulated businesses do not sell, produce or own methane molecules but sell transport, storage and regasification capacity

The emissions related to the use of methane capacity are outside of Snam’s control meaning that there are no direct or indirect reduction levers for Snam to leverage on

According to GIE² including emissions from transported gas would misrepresent the role of TSOs

1) Snam is required to ensure long-term system capacity to meet demand, guarantee security of supply through adequate capacity and reliability, provide non-discriminatory access to all shippers and following the provisions of the Network code
2) GIE_Position-paper_Scope_3_emissions_Aug_2025.pdf published in August 2025 "Position Paper on Scope 3 reporting obligations for infrastructure operators"
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Supply chain decarbonization

Scope 3 calculation

Scope 3 Methodologies & Data Sources:

  • GHG Supplier-Specific as primary method; spend-based only residual
  • EPDs and Snam Sustainability and Carbon-Accounting Portal to capture Product and Construction Site carbon footprints
  • Primary supplier data from official sources, aligned with their decarbonization targets

ESG Criteria in tenders

  • 108 contracts (66 suppliers) with ESG criteria equal to ~51% of 2025 procurement amount
  • 224 Decarbonization Plans evaluated (48% positively)

Suppliers Engagement & Training

  • Supplier Advisory Council – Engagement suppliers on ESG
  • Snam Sustainability and Carbon-Accounting Portal
  • OpenEs (ESG disclosure Platform) to exchange data
  • CDP Questionnaires
  • Annual convention
  • ESG Education Pills

Sustainable construction site

  • On-site use of materials from circular supply chains (recycled metal, regenerated hydraulic oils)
  • Re-use of water and waste produced (95% of excavated soil reused on site)

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  • Diesel+ and HVO (Hydrotreated Vegetable Oil)
  • Connection to the power grid
  • Inverter introduction on site
  • Use of electric heavy-duty vehicles

Raise awareness on climate change, support innovation and promote sustainable development


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Associates decarbonization pathways

Key levers

Most of our associates have defined and approved emission reduction plans and decarbonization targets, similar to Snam

Key reduction levers are:
- Electric compressors installation to reduce CO2 emissions from combustion
- LDAR (Leak Detection and Repair) programme implementation to reduce fugitive emissions
- Renewables energy use (electricity and green gases)

Associates with public commitment

| | Scope 1,2 & 3: -34% by 2030 vs 2021
CH4:-36% by 2025 vs 2017 (achieved)
Carbon neutrality by 2050
Moody’s Net Zero Assessment |
| --- | --- |
| | Scope 1 & 2: -50% by 2030 vs 2018
CH4:-45% by 2025 vs 2015 (achieved) and
-60% by 2030 vs 2015
Carbon neutrality by 2040 |
| | Scope 1 & 2: -5% by 2025 vs 2022
(achieved) CH4:-8% by 2025 vs 2022
(achieved)
Carbon neutrality by 2050 |
| | Scope 1 & 2: -42% by 2030 vs 2020
Net Zero by 2050 |
| | Scope 1 & 2: -25% by 2027 and
-50% by 2030 vs 2022 |


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Biodiversity & Regeneration


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Nature footprint analysis | 2025 update

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Nature Footprint analysis updated in 2025 based on the latest SBTN guidelines:

Direct Operation

The updated analysis confirms previous findings:

  1. Infrastructure Construction has a material impact on Land Usage, while other pressures have no material impact

  2. All Operations (T&D, Storage, off-shore & onshore regasification) do NOT have a material impact on Nature

Upstream

Limited overall Nature risk in the upstream, with Freshwater withdrawal in steel production the only material upstream pressure.

  • Biodiversity Risk («outside-in»)

  • Risk management approach for the analysis of biodiversity risks

  • Integrated Climate Change & Biodiversity Risk Management (CBRM)
  • Alignment with TNFD

First pure infrastructure player to join SBTN Corporate Engagement Program


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CENTRE

Positive impact on Nature by 2027

  • The minimum commitment on land use change required by SBTN is to avoid & reduce conversion of natural ecosystems and restore (locally) the entire footprint
  • The extra mile is to regenerate nature on the hotspots¹, beyond the actual impact

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In 2025 Snam has identified the "Landscape engagement initiatives" adequate to reach the Net Positive Impact and aligned with SBTN requirements²:

  • Restauro Faggeta (Regione Marche): improves local biodiversity through targeted restoration actions in mature beech forests.
  • Tavolo di Co-progettazione (Regione Abruzzo): promotes participatory governance and co-design of nature-based local development strategies.

  • First pilot completed in 2024: Remote-sensing technologies tested to assess vegetation-restoration along selected pipelines.

  • Expansion phase in 2025: Additional pilots launched to broaden technologies and use cases. Goal: develop new technical specifications for large-scale deployment across Snam's full infrastructure network.

1) The hotspots were identified by combining the land footprint (pressure) with the Ecosystem Integrity Index (state of nature). Hotspots mainly follow the Adriatic line (Sestino-Minerbio, Foligno-Sestino, Sulmona-Foligno, Recanati Chieti, Chieti Rieti)

2) Snam temporarily does not have access to the SBTN target validation process until SBTI publishes the guidelines for the O&G sector. For the time being, the company has undertaken an internal validation process, using a partner qualified by SBTN (SBTN | Expert Advisors). The gap analysis against the SBTN criteria found that the initiatives are adequate to meet Snam's public Net Positive objective and have been strengthened with respect to SBTN requirements


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People


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Health & Safety

Scorecard: IpFG combined Frequency and Severity Index: 0.45 by 2026¹

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Frequency Index¹

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Severity Index²

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IPFG³

IpFG Performance:

  • Frequency increase less than proportional to Capex / construction sites number
  • Severity on a downward trend

Snam4safety project launched in 2018 to strengthen safety culture and awareness of employees, contractors and suppliers

In 2025:

  • Training courses on safety leadership and expansion of the perimeter of workers involved
  • 250 construction sites visits
  • 22 suppliers’ safety workshops
  • Target setting about Near Misses and Safety observations, collected by Appl available to all colleagues
  • Specific initiatives on market solution businesses with university and inter-company working groups on market solution businesses for fostering the safety culture

Safety certification

ISO 45001

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Zero accidents target - Severity on a downward trend

1) Combined Frequency (30%) and Severity Index (70%)

2) Employees (full Group) + Contractors (Gas Infrastructure)

3) Combined Frequency (50%) and Severity Index (50%)

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The Learning Ecosystem

Scorecard: training hours delivered to employees: 42 h/capita by 2030

Snam Institute: the in-house Academy

Snam Institute supports the company's strategy by promoting continuous learning, strengthening skill-based career paths, fostering a solid leadership culture, and advancing technical upskilling initiatives.

~ 180,000 Training hours delivered in 2025

45 Average hours delivered per employee
98% Of the company population involved in at least one course
~ 200 Internal training members

Main projects

Snam's Learning Ecosystem supports the evolution of the People & Organization model, strengthening the technical, managerial, and cross-cutting skills needed to sustain Snam's industrial trajectory through competency-based pathways that enhance leadership culture, foster the dissemination of knowledge, and improve people's learning experiences

Employee Experience

The evolution of the learning experience includes digital platforms, on-the-job models, and tools that simplify processes and make training access more intuitive, personalized, and continuous.

Snam Digital Journey

The Digital Journey contributes to build Snam digital culture by developing current and future digital skills through a structured program combining experiential initiatives, targeted training, and awareness activities.

Leadership & Next Gen

A structured program to manage generational turnover and build a robust pipeline of future leaders. It develops emerging talents and managers with the critical capabilities needed for sustainable growth, especially within the Operations field.

Internal Faculty

Network of internal experts who deliver high impact training based on real business experiences. By leveraging internal capabilities, Snam accelerates skills development and knowledge transfer in alignment with business priorities and ensures long term performances and value creation.

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Diversity & Inclusion

Scorecard:
Women in exec. and middle-mgmt. roles (%) ≥28 by 2030
Employees engagement index: >80% in 2030
Gender pay gap between +/- 5% by 2030

  • Policy framework completed on diversity & inclusion, gender equality, recruiting, harassment and gender transition
  • DE&I initiatives: Inclusion month, e-learning pills, training programs on unconscious bias, diversity project with Snam suppliers, joint ESG roadshow with Snam Foundation to engage all employees, supporting our DE&I roadmap on parenthood, disability, LGBTQ+, STEM, gender & generations, Snam4diversity Talks
  • Bloomberg’s Gender-Equality Index: Snam included for the 4th year

  • Employer branding, hiring, development, retention and training: actions on HR processes in order to improve progressively gender balance, especially in operational departments

  • Policy framework complete policies in order to facilitate parenting/family caring and careers
  • Employees’ engagement: continue recurrent measurement and implement action plans coherently with the People Journey

Next engagement survey in April 2026


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Disclaimer

Luca Passa, in his position as manager responsible for the preparation of financial reports, certifies pursuant to paragraph 2, article 154-bis of the Legislative Decree n. 58/1998, that data and accounting information disclosures herewith set forth correspond to Snam's document results, books and accounts records.

This presentation contains forward-looking statements regarding future events and the future results of Snam that are based on current expectations, estimates, forecasts, and projections about the industries in which Snam operates and the beliefs and assumptions of the management of Snam.

In particular, among other statements, certain statements with regard to management objectives, trends in results of operations, margins, costs, return on equity, risk management are forward-looking in nature.

Words such as 'expects', 'anticipates', 'targets', 'goals', 'projects', 'intends', 'plans', 'believes', 'seeks', 'estimates', variations of such words, and similar expressions are intended to identify such forward-looking statements.

These forward-looking statements are only predictions and are subject to risks, uncertainties, and assumptions that are difficult to predict because they relate to events and depend on circumstances that will occur in the future.

Therefore, Snam's actual results may differ materially and adversely from those expressed or implied in any forward-looking statements. Factors that might cause or contribute to such differences include, but are not limited to, economic conditions globally, political, economic and regulatory developments in Italy and internationally. Any forward-looking statements made by or on behalf of Snam speak only as of the date they are made. Snam does not undertake to update forward-looking statements to reflect any changes in Snam's expectations with regard thereto or any changes in events, conditions or circumstances on which any such statement is based. No representation or warranty is made by or on behalf of the Snam that any projection, forecast, calculation, forward-looking statement, assumption or estimate contained in this presentation should or will be achieved. This presentation does not constitute a recommendation regarding the securities of Snam. This presentation does not contain an offer to sell or a solicitation of any offer to buy any securities issued by Snam S.p.A. or any of its subsidiaries.

The reader should, however, consult any further disclosures Snam may make in documents it files with the Italian Securities and Exchange Commission and with the Italian Stock Exchange.


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