The document discusses an energy company's efforts to reduce emissions and enable the transition to a lower carbon future. It outlines the company's commitment to achieving net zero emissions by 2040 for Scope 1 and 2 emissions. It also details various initiatives to reduce methane leaks from pipelines and other infrastructure, increase the efficiency of compressor stations, and ensure assets are ready to transport hydrogen and other renewable gases. The company is working with suppliers and international partners to reduce Scope 3 emissions and promote decarbonization across its value chain.

1. 1
Energy to inspire the world
ESG seminar
20th April 2021

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energy
to
inspire
the
world
Our purpose: the intersection between our talents and the world’s
needs
«Where your talents and the need of the world intersect, therein lies your purpose»
(Aristotele)
• Development and integration
of new energy sources
• Ample, competitive and clean
energy
• Complex project delivery
• Contribution to meeting
societal challenges
• 80 years of experience in
building energy infrastructure
• Getting things done
(permitting etc.)
• Technical expertise, strong
supply chain
• Strong public service
approach in company culture
• Good reputation with
stakeholders
Where our
talents lie
What the
world needs
Energy
to
inspire
the
world

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energy
to
inspire
the
world
ESG integrated in company strategy
We enable the transition
to a lower carbon future
We strive to build a diverse
and inclusive culture for our
employees and support our
communities
We integrate ESG in
our governance and
ensure transparency in
everything we do
• Net zero by 2040 on Scope 1+2
• Enabler of system
decarbonization
• Energy transition businessesase
study?
• Safety
• Diversity & Inclusion
• People development
• Employee wellbeing
• Support communities
• Responsible Supply Chain
management
• Purpose and gender parity
in bylaws
• ESG committee
• Anticorruption and Policies
• Compensation
• Integrated reporting
Environment
Social
Governance

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energy to inspire the world
E: Our pathway to net zero
Clear pathway to net-zero in
our own scope 1&2 emissions
Enabler of system decarbonisation
Secure asset readiness and flexibility
and support green gases development
• One of the earliest in setting carbon neutrality
target in the utilities sector
• Target aligned with Paris agreement to keep
temperature increase within 1.5° C
• Engaged with suppliers and associates to
promote their carbon footprint reduction (Scope 3)
-50%
2040
2030
2018
Reduce CO2 emissions through our
energy transition businesses
Energy efficiency
Sustainable mobility
Hydrogen
Forestation
Biomethane
We ensure readiness of our
assets and investments to
hydrogen
In our long-term scenario
we foresee all transported
gas by 2050 to be either
renewable or abated
We work with policymakers
to promote green gases
We work with green
hydrogen value chain
players to drive down cost
of production
Net-zero

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E: Our assets are at the core of a Net Zero future
• We are working to ensure a hydrogen ready and flexible
asset base able to cope with co-existence of natural gas,
CCS, biomethane and hydrogen
• By 2030, the Italian backbone may stretch from Sicily till
Emilia Romagna hydrogen valley, mostly consisting in
repurposed gas pipelines as a result of the availability of
parallel routes.
• These developments will be coupled with the potential to
import hydrogen from Tunisia, fully exploiting the cost
advantage of solar production and land availability in North
Africa,
• By 2035, the connection to Austria may already allow
hydrogen from North Africa to be used in Northern Europe
and by 2040 an interconnection to Switzerland could be
added to provide another connection to North-Western
Europe.
• Italian assets will form part of an EU hydrogen backbone of
almost 43000km, for a total investment of €43-81bn,
delivering H2 at between 11 and 21 euro cents/kg/1000km
• Our infrastructure will add significant resilience, flexibility
and security to a EU energy system based on intermittent
renewables
Working for a «Hy-ready» and flexible network to support the transition
Extending the European Hydrogen Backbone, April 2021

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energy to inspire the world
S: Promotion of
wellbeing for all
Welfare
Safety
first &
foremost
Community
Energy poverty
Diversity & Inclusion
Covid initiatives
Training & people
development
Educational poverty
Promotion of female
empowerment
Emissions reduction
Responsible
supply chain
Social supply chain
Support to
local suppliers
energy
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world
Employees
Protection of our
natural habitat
Launch of World Wellbeing
Movement
Suppliers

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energy to inspire the world
• Governance highlights
• Diverse and experienced BoD
• 5/9 independent (incl. Chairman)
• 33% female
• One of first to introduce an ESG
board committee (since 2019)
• 40% of the BoD time on ESG
matters
• Compensation: 20% of the short and
long term incentives linked to ESG
• Multilateral partnerships with
leading international institutions such as
OECD and Transparency International
G: Pursuit of good governance
• Commitment to “fostering the energy transition towards forms of
use of the energy resources and sources that are compatible with
environmental protection and the progressive decarbonization”
• Long-term value creation to benefit shareholders whilst also
promoting the satisfaction of the interests of the Company’s relevant
stakeholders
One of the first companies to include Purpose and the
pursuit of sustainable success in the Bylaws
• Construction and management of renewable energy sources’
infrastructure, such as biomethane, sustainable mobility and energy
efficiency
• Production, sale and provision of services related to renewable
energy sources and hydrogen
• Provision of services and works regarding energy efficiency in the
public and private sector
Introduced activities related to the energy transition
alongside core regulated activities
• At least 40% of the Board of Directors to come from the
less represented gender
(or higher where relevant future provisions come into force)
Gender balance

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energy
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Environment
We enable the transition to a lower carbon future

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energy
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Fighting climate change is the greatest challenge of our generation
• Worldwide commitment to fight climate change
• Paris Agreement
• UN Agenda 2030 for Sustainable Development
• Countries representing over 60% of global emissions have
climate neutrality goals
• EU taking the lead
• EU Green Deal plan to make EU's economy sustainable by
turning climate and environmental challenges into
opportunities and making the transition fair and inclusive
• The European Council of December 2020 endorsed a binding
EU target of a net domestic reduction of at least 55% in
greenhouse gas emissions by 2030 (compared to 1990
data). The new target will require a comprehensive
rethinking of the EU economy and policies
• The EU Commission proposed on March 2020 to enshrine
the 2050 climate-neutrality target into the Climate Law
• EU Sustainable Finance Action Plan outlines the strategy
and measures to establish a financial system capable of
promoting a genuinely sustainable development from an
economic, social and environmental point of view
Investors and society giving climate change
fight very high priority

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energy to inspire the world
Snam Scope 1 & 2 emissions
(kton of CO2 equivalent)
Snam’s Scope 1 and scope 2 emissions
• Methane emissions (fugitive,
pneumatic, vent and incomplete
combustion)
• Indirect emissions for use of electricity
and hot & cold vectors
2018
• Natural gas burned by
compression stations, gas network
heaters, heating offices
• Fuels used by electrical
generators and by vehicle fleet
770
727
32
Scope 2
Scope 1
Key future actions to reduce emissions
• Dual fuel turbo compressors
• Installation of high-efficiency heaters /
generators
• Increase in energy efficiency and savings from our
buildings
• Conversion of company fleet to vehicles using
natural gas
• Leak Detection And Repair (LDAR) program
• Replacement of gate valves in approx. 350 pressure
reduction stations and in compressor stations
• Replacement of over 3,000 pneumatic actuators and
instrumentation
• Recompress natural gas into the network during planned
maintenance (target to reduce by 40% every year)
• Increase electric energy from renewable source,
including production from photovoltaic plants
• New LEED certified headquarter offices

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energy to inspire the world
Scope 3 emissions mainly deriving from our associates and suppliers
WHAT ARE SCOPE 3 EMISSIONS?
Scope 3 emissions are all the indirect emissions
related to a company’s value chain
HOW ARE THEY ACCOUNTED?
In Snam, Scope 3 emissions are accounted
according to the GHG Protocol
WHICH ARE THE MAIN SCOPE 3
CATEGORIES?
Snam’s Scope 3 emissions are mainly due to
our associates (51%) and suppliers (36%)
Snam’s scope 3 emissions (ktons of CO2eq)
WHAT ABOUT VALUE OF GOODS SOLD?
• Emissions related to the final use of
transported gas are not included in our
scope 3 perimeter as per GHG Protocol
• They are equal to approx. 150 Mt
• We help the reduction by supporting green
gases development, granting asset
readiness and promoting value chain
stakeholders collaboration
Supply Chain
41%
Investments
51%
Other
8%

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energy to inspire the world
We engage with our suppliers and international associates to promote
decarbonization
Suppliers International associates 1
Upgrade calculation methodology
• Clustering of our suppliers
• Collection of bottom up emissions data
• Request that our larger suppliers fill out
the CDP Supply Chain Questionnaire
• Simplified questionnaires on GHG
emissions for smaller suppliers
• Support our suppliers in measuring their
emissions more accurately, sharing know how
and learning through dedicated sessions
Promote CO2 emissions reduction
• Increase emissions weighting in our
qualification process and tenders (currently
included in 20% of our procurement)
2019 2025
-20%
International associates already on a virtuous path of
CO2 emissions reduction based on their current targets
We will engage with them to promote knowledge
sharing and best practices
1. No emissions from Adnoc Gas Pipeline Assets as the company holds tariff-based rights for an infrastructure operated and used by ADNOC.

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Snam has already started its journey to reduce emissions
VENT EMISSIONS: emissions from scheduled maintenance
activities, venting or depressurization for emergencies
FUGITIVE EMISSIONS: leakages from pipelines, from valves
(e.g. open-ended lines, blow down valve)
PNEUMATIC EMISSIONS: resulting from regulated equipment such
as valves controlled by means of compressed gas discharge
UNBURNT GAS
Scope 1 & 2 emissions per km
(tons CO2eq / km)
Natural gas emissions by type
(Mm3)
Key emission reduction initiatives impelmented:
• Replacement of pneumatic instrumentation / valves with
advanced technology minimizing gas leakage
• Replacement of heaters with new ones with higher efficiency
• Recompression and use of Tapping Machine to reduce
vented gas
9,3 7,5 7,2
12,1
10,4 9,8
22,6
21,1
17,7
0.3
2018
0.3
2019
0.3
2020
44,4
39,2
35,0
46,9
42,1 40,0
2019
2018 2020
-15% -21%

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energy to inspire the world
Revamping of our compressor stations
Advantages of an integrated ELCO:
• Total lack of emissions into the atmosphere
• Sector coupling, favoring energy optimization of national system
• Absence of lubricating oil of the moving parts
• Smaller size vs turbochargers
Layout of
Electro-
Compressor
(ELCO)
6
Stations with plan for installation of
dual-fuel compressors
Malborghetto
Messina
Poggio Renatico
Minerbio
Fiume Trieste
Settala
Sergnano
Ripalta
2
Transport
Storage

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energy to inspire the world
Leak Detection And Repair (LDAR) program
Technological revolution
• LDAR is the leading project of SnamTec program,
aimed at digitalizing operations management of
Snam districts
Digital innovation
• Use of digital instruments FID (Flame
Ionization Detection) to measure gas leakage.
• Results recorded in IT systems and
emissions updated in real time
Excellent results
• LDAR adopted in 120 plants in 2020
allowed avoiding 1Mn cubic meters
of gas in the atmosphere
• >180,000 component measured
during measurement campaign to
update emission factors

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energy to inspire the world
Assessment of “H2-readiness” is performed across our assets
Gas Metering
Compression
stations
Final users
Storage
Pipelines
• 2/3 of existing
network compliant
with ASME1
• Issued standards
for new pipelines
capable to
transport 100% H2
• Launched joint study led by DNV
with 10 TSOs and 7 meter suppliers
• Snam identified availability of gas
chromatographs ready for H2 up to
10%
• Supplied industrial cluster
with 10% H2NG blend
• Assessment of higher H2 blending
in steel mill industrial furnaces
• Pilot project for use of H2
separation membranes to allow
diversification of end users
delivery
• First TSO to define standards on
H2NG mix for compressors and
turbines
• New “hybrid” compressor turbine
tested with Baker Hughes, suitable
for up to 10% H2 blending
• Verified feasibility of 2% H2
blending
• Project with Polytechnic of Turin
and IIT2 to assess feasibility of
higher % of H2 blending
• Potential for storing also CO2
1. American Society of Mechanical Engineers | 2. Istituto Italiano di Tecnologia

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Setting technical standards to transport hydrogen
• Issued new internal Pipeline Standards based on
ASME B31.12 standard, setting the requirements for
hydrogen blends transportation with H2 up to 100%
• Additional testing requirements have already been
verified on some material orders:
• Hydrogen toughness tests on new DN 1400
pipes have been successfully performed in a
laboratory with 100% hydrogen in high pressure
(80 bar)
• A first lot of plug and ball valves tested with
high pressure helium from two different suppliers
with positive results
• Each pipeline of the network is being verified by
applying ASME B31.12
>26000 km of
network
verified
New Pipelines Existing Pipelines
5.200
13.930
26.440
32.600
Tot
Network
Aug ’20 Oct ’20 Mar ’20
Verified Transport network (km)
“We are working with Snam to certify the compatibility of its network for the transport of hydrogen by
pipeline. The joint activities also include laboratory tests, which have so far been successful, and further
complex tests will be continued at high pressures“ Ugo Salerno, CEO of RINA

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Assessing H2 limits of gas turbines and compressors
• No hardware modifications required
Up to
5-10%
H2NG Blend
• Use of specific machines
> 10%
> 20%
• Hardware modifications
Gas turbines Gas compressors
• Neither performance nor integrity
issues
Up to
5-10%
H2NG Blend
• Machine replacement
> 10%
> 20%
• Rebundling of the compressor
Factory and On-Field tests for appropriate verifications and validations
H2

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Ongoing studies on underground storage
Ongoing study to identify, characterize, investigate and simulate the physical, chemical and
microbiological phenomena associated with the H2NG blend storage in natural gas depleted fields
• Test results on cements 10% - 50% -
100%
• Test result at 2% - 10% - 20% H2 for
specific site
• Effects on reservoir rock,
• Diffusivity test on cap rock (2-10%)
• Hydrogen - methane interaction
• Preliminary microbiological study -
Bacterial mass type and
characteristics
Feb 2021 Jul 2021
• Final microbiological study -
Bacterial mass type and
characteristics
• Test result at higher % of H2 in
specific sites (to be defined on the
basis of the results of Phase 1)
• Reservoir rocks reactivity
characterization to H2
• Threshold pressure characterization
on cap rock
• Microbial activity modeling in the
reservoir
• Test result and gas flow modeling at
the microscale
Jul 2022
PHASE 1 PHASE 2 PHASE 3

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energy to inspire the world
Role of digitalization and AI applied to industrial assets & operations
to reduce emissions
TELEDIAGNOSTICA GAS TURBINES
Acquiring and displaying diagnostic data
of all plants gas turbines, to enable
predictive maintenance and anomalies
early detection
PIMOS
Real time detection and location of gas
leaks on the pipeline network, and
identification of possible causes of
pressure variations leveraging on
machine learning
INTELLIGENT DISPATCHING
Application platform based on
Artificial Intelligence algorithms to
support Dispatching in the
management of the grid, enabling
greater reliability, safety and efficiency
PREDICTIVE EMISSIONS
MONITORING
Implementation of predictive models
(PEMS models) to forecast emissions
and improve emissions monitoring
DIGITALIZATION OF PROCESSES
End to end re-engineering of Company processes (field, central operations, corporate)
aimed to increase responsiveness, flexibility and agility, thus reducing impact on
resources (eg: paperless)
14 11 8 3
0
20
2017 2018 2019 2020
Mln of paper pages used/ yr

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AI, IoT and Cloud technologies enabling digitalization of operations
100x
data vs today
(in 2 years)
Gathered
and used
30.000
connected devices
and 600+
Edge
computing
devices
Network
Plant/ field
Architecture
Central
Architecture
• Infrastructural services enabling the integration of business applications and big data
• Key tech: AI/advanced data correlations, Machine Learning models on hybrid cloud
• Infrastructural layer interconnecting distributed devices on field with centre/cloud
• Key tech: fiber optic, 4G, 5G, NbIOT, satellite
• IT technologies and field devices collecting big data from industrial sensors and smart devices
• Integrated distributed computing model, highly resilient, executing AI algorithms close to field
• Key tech: Edge computing, advanced industrial sensors, smart devices (wearables)
50x
central + cloud
Processing
power
vs today
Devices

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Social
We strive to build a diverse and inclusive culture for
our employees and support our communities

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23
Corporate activities are governed
by ISO 45001 certified
management systems
Safety
6,89
3,95
2,77
2,01
0,89 0,75 0,78 0,58 0,59 0,38
2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
Employees+contractors
81
36
32
24
11 9 11
7 7 5
2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
0,26
1,04
0,17
0,73
0,66
0,05
0,56
0,02 0,05
0,58
2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
Employees+contractors
• Prioritized safety of our personnel during Covid
• Incentives to promote maximum safety precautions
• Application of digitalization/technology (for example smart PPE
with sensors and anti-collision systems installed on operating
machines)
• Ongoing program to bring newly acquired energy transition
businesses up to Snam group standards
Recent intiatives
Snam’s commitment to health and safety protection in the
workplace and good practices adopted internally and
promoted with suppliers have reduced the accidents rate
over time
In 2018 Snam launched a safety project involving the
management and leadership team with a focus on leading
indicators (eg Near Miss). This led to zero accidents for our
regulated companies employees in the last 2Y
Number of accidents
Severity index
Frequency index

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energy to inspire the world
Health and wellbeing of our people central during a difficult year
Ensured an uninterrupted
national service
Critical services guaranteed
• A crisis team was formed with key
personnel in direct contact with the Civil
Protection Unit
• In order to ensure an uninterrupted
national service, 15 housing units were
built for those who were required to
work at the headquarters network
control center
Health
All non critical employees were asked to
work from home. In order to guarantee
their safety various initiatives were rolled
out including:
• Remote health care was offered with
the delivery of pulse oxygenometers to
all employees
• Free screening for Covid 19
Prioritizing the wellbeing
of our employees
Working from home as seamlessly as
possible
To allow for this various initiatives were
rolled out including
• Provision of equipment for all to enable
work from home (screens, mobile phones
etc.)
• Training was rolled out remotely- over
25,000 hours registered by 2,500
employees
• Online catchups with our CEO and with
colleagues at regular intervals
Welfare initiatives in light of the new
normal
In recognition of the new challenges we
introduced actions such as
• Childcare support for children out of
school
• Psychological help for all employees
• Mindfullness and gym courses
Launch in 2021 of the World Wellbeing
Movement together with the University of
Oxford

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energy to inspire the world
Diversity and inclusion in Snam
Employees
Snam initiatives for Diversity & Inclusion
Snam puts women at the center
675k€
Percentage
of women in
leadership
team
Hiring of
executive
women in
2020
Investments
in gender
initiatives
31% 33%
0%
5%
10%
15%
20%
25%
30%
2020 2021 2022 2023
% of women in executive and
middle-management roles
% of women in succession planning
(first and second reporting line and key
positions)
0%
5%
10%
15%
20%
25%
30%
2020 2021 2022 2023
Community
• Young apprenticeship program
• Scholarships for STEM female
students
• STEM tutoring program for
female students
• Job Shadowing Program
• Policy D&I
• Policy Recruiting D&I
• Gender policy
• ESG Dashboard
• Inclusive Language Manifesto
• #Snam4Diversity Talk
• Learning platform for all new
parents
• Inclusion Team
• Yearly Inclusion Week
• Unconscious Bias Program
New Initiatives
• Harassment Policy
• Employees Resource Groups
(ERG)
• Expatriates Learning platform
• Training for employees children
on racial issues
#Snam4Diversity
Inclusive Energy

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energy to inspire the world
The key areas that Snam Foundation works on are:
Snam Foundation
Strategic alignment with
Snam’s expertise
Regeneration of vulnerable
areas
Innovation
Partnerships with local and
international actors
Sustainability
Environment
Protection of the environment with a particular focus on energy poverty and climate
education within schools
Children and youth
Promotion of projects that prevent early school leaving in disadvantaged areas and
equal opportunities for all children. We also work with NEET youth (Not in Education
Employment and Training) to facilitate their return to education and access to
employment
Snam Foundation aims to promote projects that can have a significant impact on key
issues in Italy through the integration of our company’s employees skills
Female Empowerment
Promotion of an inclusive culture through initiatives that reverse gender stereotypes
and promote gender equality. A second area of work focuses on encouraging girls to
study STEM subjects
Wellbeing
Promotion of a global movement to measure and promote national and global
wellbeing
Features of the initiatives
Over 700,000 people from disadvantaged
categories reached during the pandemic

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Transparency
and reporting
We integrate ESG in our governance and ensure
transparency in everything we do

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Reporting
2006
Multi-stakeholder
reporting and comm.
tool on sustainability
topics
Sustainability
Report
Integrated report
prepared according to
IIRC Framework
Integrated
Report
Complies with
2015 2017
Non-Financial
statement as part of
Directors Integrated
Report
Integrated
Report
and NFS
2018 2020
Complies with
Reports Snam's
strategy, governance,
risk mgmt. and
climate change
Financial
Disclosure on
Climate Change
Correspondence
table with SASB
Sustainability Report
done in accordance with
GRI standards. Following
investors suggestions
from 2020 it was
introduced a SASB
correspondence table
(also for Annual Report)

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• Increase of capex driven by
replacement cycle and energy
transition
• Infrastructure investments
have significant multiplier
effect on GDP (ca 3x) and
they rely on SMEs
Rising investments
Capex alignment to taxonomy and principles of UN CFO taskforce
0
200
400
600
800
1000
1200
1400
1600
2016 2020 2021
Ca 40% of capex plan 2020-
24 aligned with EU
Taxonomy (*)
€m
(*) Preliminary analysis of alignment against
TEG Report and Delegated Acts released in
November 2020. Final version of the
Delegated Acts expected by end of April 2020
€7.4bn
Funding member of UN global compact
CFO taskforce contributing to the
development and adoption of the four
principles (**):
• SDG impact thesis and measurement;
• Integrated SDG strategy and investments;
• Integrated corporate SDG finance;
• Integrated SDG communication and reporting
(**) The principles have been launched in September 2020 on
the sidelines of the General Assembly of United Nation

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Sustainable finance aligned with corporate strategy
• ~7bn€ of sustainable funding at
year-end equal to ~40% of total
committed funding
• In May 2020, confirmed the margin’
step down of the 3.2bn€ sustainable
loan
• Eur 1.6bn of ESG compliant bonds
issued in 2019-20 and Eur 750m in
Feb 2021
0
4
8
12
ESG
compliant
Institutional
lending
Sustainable
loan
DCM
instruments
Sustainable
finance as of
Dec. 2020
ESG labelled
ECP
New
sustainable
DCM
instruments
Sustainable
finance
expected at
2024
~60%*
Rating of EE (Investment
Grade) for the Euro
Commercial Paper
Programme by Standard
* of total available funding
€bn
~10%
end 2016
~40%
Sustainable finance: ambition to reach ca. 60% of total available funding

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Closing remarks

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How sustainability creates value: Snam case histories
• Strong relationship built with local
communities
• Managed institutional relations
• Use of advanced technology to
minimize environmental impact
• Restorations
• Created 4 platforms in
energy efficiency,
biomethane, sustainable
mobility and hydrogen
over the past years
• Skills and expertise
insourced
• EUR 720 m of
investments 2020-24
with an accretive risk-
reward profile
• EUR150m of EBITDA
contribution expected in
2024
TAP realized on schedule under
challenging conditions
• ESG investors represented 34%
of the institutional investors
(Nasdaq analysis) in Sept 2020
• Sustainable finance represents
approx. 40% of total funding
(with a target to reach 60% by
2024)
Leadership in ESG recognized
by the market
New business/investment
opportunities
Delivery of complex
infrastructure projects
Access to a larger pool
of investors
Increase value of our
assets
• Strategic role of gas
infrastructure in the
energy transition
• Longevity of the network
increased
Role of our infrastructure
to deliver Net zero
Launch of energy transition
businesses

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Disclaimer
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 perates and the beliefs and
assumptions of the management of Snam.
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.
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.
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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Back up

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ESG Scorecard
Detailed ESG targets for the next 3 years underlying Snam’s ESG strategy
integrated across all business units
• Snam already measures
performance on a considerable
number of ESG topics (>140)
• 30 companies benchmarked and all
business units involved
• Designed to measure, monitor and
extend Snam’s ambition in 13 ESG
key focus areas linked to SDGs
• 22 KPIs with related targets across
the 13 areas over the next three
years
• The ESG Scorecard is an actionable
roadmap that will be updated and
disclosed annually

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ESG SCORECARD
SDGs ESG Focus Areas KPIs
2023
target
Natural Gas Emissions
Natural gas emissions reduction vs 2015 (%) -21% -30% -36%
Natural gas recovered from maintenance activities (%) 44% 49% >40%
Operational energy Savings
Electricity production from photovoltaic plants (MWh) 829 872 >860
Snam’s fleet cars retrofitted or methane fueled (%) 34% 39% 61%
New Business - Green
Innovation
Biomethane produced (mln m3) 0 0.44 141
CO2eq avoided through to energy efficiency activities (ktons) 3 5 43
CNG and L-CNG refuelling stations (#) 9 25 167
Available LNG capacity for SSLNG market (ktons) 0 0 250
Land Protection & Biodiversity
Vegetation restoration of the natural and semi-natural areas involved in
the construction of the pipeline routing (%)
New KPI New KPI >99%
Welfare Employee partecipation in welfare initiatives (%) New KPI 39% 54%
Employee engagement Employee engagement index (%) New KPI 82% 75%
Safety
Combined frequency & severity index (last 5Y average) 0.32 0.49
<average
last 5 years
Number of HS remarks on total audit (last 5Y average) New KPI 0.27
<average
last 5 years
Gender Diversity
Women in executive and managing positions (%) 19.3% 20.3% 25.0%
Women in succession planning (first and second reporting line and key
positions) (%)
22% 22% 27%
Responsible Supply
Spending to local suppliers (Italy based SMEs) on total procurement (%) 30% 37% 50%
“Social” (third sector) suppliers included in the vendor list vs 2020 (#) 7 26 +50%
Local Community Engagement Employees hours devoted to volunteering vs 2020 (hours) 4400 4100 +30%
Governance Functioning
BoD time dedicated to ESG matters in strategy meetings and induction
sessions (%)
40% 41% >40%
Infrastructure Reliability
Reliability of gas supply (%) New KPI 99.99% >99.9%
Last 3 years average customer satisfaction survey score 7.6 8.2 8.1
Anti-corruption Third parties subjected to reputational checks % 100% 100% 100%
2020
2019

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Our energy transition businesses contribute to decarbonization
50 ktons 570 ktons 10 ktons 200 ktons
CO2eq avoided through
energy savings on residential,
industrial and tertiary
segments
CO2eq avoided due to the
switch from diesel / gasoline
to CNG and bio-CNG vehicles
CO2eq avoided due to
the switch from diesel
to H2 trains
CO2 abated by planting
3M trees by 2030
Benefit company set up by
Snam and CDP
c. €200 m
investment
> 800 ktons of CO2 emissions reduction thanks to energy transition
businesses
Energy efficiency H2
Sustainable mobility
and biomethane FORESTATION
Mobility
Biomethane
c. €220 m
investment
c. €150 m
investment
c. €150 m
investment

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Arbolia: a company created to develop green areas
Ambition
• 3 million of new trees by 2030
• 200 thousand tons of CO2
avoided per year
No cost for P.A.
• Urban forestation activities
• Fully financed with private
investors contribution
• Benefit company created in the second half of 2020 by Snam (51%) and the Cassa Depositi
e Prestiti Foundation (49%) to develop new urban forests in Italy to allow cities to enjoy the
“ecosystem benefits” of tree planting, including CO2 and pollutant’s absorption,
temperature regulation, soil protection, rainwater filtration and physical/mental wellbeing
for communities
Achievements
• 6 urban forests realized, and 11,000 trees
already planted
• 7 MoU already signed with 6 Municipalities
and the Pompei archeological park
Activities
• Planning, planting,
maintenance of urban forests
• Carbon footprint analysis

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74km
• LENGTH OF AREA SUBJECT TO PLANT CARE 2016-2020
• AREAS SUBJECT TO REFORESTATION 2016-2020 131 ha
• REFORESTATION COSTS 2016-2020 12 MLN
• LENGHT OF NEW AREA SUBJECT TO ENV. MONITORING
(NEXT 3 YEARS)
• PROJECTS CURRENTLY MONITORING ENV. AREAS 17
• LENGHT OF AREA SUBJECT TO ENV. MONITORING ~ 1.100km
• NEW PROJECTS FOR ENV. MONITORING (NEXT 3 YEARS) 11
• TARGET REFORESTATION 2021-2023 >99%
Biodiversity
Reforestation projects for impacted areas
Projects for environmental monitoring
~800km

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Human Capital
Development
Snam Institute, main success projects of 2020:
• Leadership school: training course dedicated to all 360
People Managers with the aim of giving a boost to the
adoption of managerial attitudes and behaviors
appropriate to the type of organizational development
and managerial culture that Snam is pursuing. Main
topics: unconscious bias, inclusivity, teams management
• #Snamnonsiferma: series of webinars and group
coaching sessions delivered in April-May in order to
acquire the right mentality to embrace new smart
working methods and provide practical tools for
managing smartworking in a perspective of work-life
balance, effective management of remote meetings and
management of its own team
• Internal faculty: made up of 80 employees who transfer
their technical and business knowledge to other
colleagues in a “by Snam to Snam” logic. In 2020 they
provided 2,100 hours of training
Training 2020:
• Training hours: 66,384
• Total participants: 2,937
(90% of the entire
population)
Centers of Competence, a
project concluded in 2020
The Centers of Competence (CdC) are aimed at
preserving, capitalizing and making Snam's core
technical know-how transferable. A CdC is a
group of Snam people who hold consolidated
and recognized knowledge and skills in specific
relevant thematic areas. Thanks to the work of
these groups, 16 volumes that contain the
important heritage of corporate knowledge have
been produced
COVID emergency:
The emergency dramatically accelerated
change in the way we work and train.
In 2020 the Snam Institute Training
Catalog has been modified in order to
adapt it to distance learning mode (36
new e-learning courses and 48 courses
adapted)

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Employees Wellbeing
Reimbursement of
nursery school and
babysitting
expenses
2+ k€ /
person
Social assistance
to children, old
people and
disabled
SnammyBene
Initiatives to
promote wellbeing
inside and outside
the company
Additional credit
granted to
employees for
welfare initiatives
Platform to access
discounted offers
on several product
/ service categories
Medical
screenings
provided through
affiliated hospitals
Launch in 2021 of the World Wellbeing Movement together with the University of Oxford

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A supply chain aligned to our ESG vision
Fully committed to our ESG vision
Snam assesses that all suppliers adhere to our
company value and business principles when they
enter our Vendor List Specifically their:
• Ethical standards
• Commitment to anti-corruption
• Environment protection
• Promotion of health & safety working conditions
• Absence of forced and child labour
• Technical and management capacity
• Economic and financial reliability
We then assess their HSE performance when
evaluating them:
• 30% of our suppliers performance index is tied to
working conditions, contractors personnel
management and environment performance
And continuous new improvement
One of first companies to launch social supply chain
(2018)
• To enable suppliers who employ persons from
disadvantaged categories to enter our Vendor list
• More than 20 such suppliers added since 2020
Emissions reductions drive
• CDP Supply Chain questionnaire: 2020 rating A-
• Shared learning and joint projects to be launched
in 2021
Suppliers included in our ESG scorecard
• 50% of spending on total procurement from local suppliers
(Italy based SMEs) by 2023 vs 37% in 2020
Third party certifications on suppliers to be launched in
2021 in 7 key areas
• Including human rights, corruption and environmental
issues

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Community & stakeholder engagement
• Snam acts for a preventive,
continuous, strategic and
integrated engagement of
local communities, aiming at
building trustful
relationships with them.
• In pursuing its company
mission, Snam has adopted a
long-standing Stakeholder
Engagement Policy,
according to the criteria of
transparency and
impartiality.
• Through its widespread
presence throughout the
country, Snam is
committed to maintaining
an open and regular
dialogue with the local
communities, intended as
all relevant stakeholders
directly and indirectly
involved (institutions,
associations, economic
actors, media), to share
information about our
activities, respond to
questions, listen to their
remarks and act on their
concerns, as appropriate.
• By listening to their
expectations and needs,
Snam has launched
various tailored projects
in order to share with the
communities the value
created through the
company’s activities, such
as sustaining
environmental and urban
regeneration projects
with significant social
impact or supporting
schools on a wide range
of initiatives.

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Independent, inclusive and skilled Board of Directors
• Independent:
• 5 out of 9 Board members
qualified as independent (56%)
• Chairman independent pursuant
to TUF
• 1/3 of the Board elected by
minority shareholders
• Diverse: 33% female
• Skilled: wide range of expertises
including specific ESG expertise
Time in the office of the BoD
members (%)
Directors expertise (%)
Snam Board of Directors
2-4 years 6-9 years >9 years
0
10
20
30
40
50
60
70
Strategy ESG
Sector experience Finance
International experience Legal
Risk Managament HR development
• New provisions on Gender balance in the Bylaw: "at
least two fifths" of the BoD from the less represented
gender
• Etnicity included in the Board Diversity Policy
Recent developments
56
11
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ESG key in leadership compensation system to promote sustainable
value creation
Long term incentive
Share plan with annual assignment and
3years vesting period
Reductions in
natural gas
emissions
Reduction of natural gas emissions 10%
Gender
diversity in
management
team
% of women managers and middle managers of the total
management and middle management figures of the Group
10%
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Fixed
remuneration
REWARD
POLICY
Annual
monetary incentive
Long term
Safety (Ipfg) Weighted index of frequency and severity of accidents of
employees and contractors. It takes into account both the
frequency of total accidents recorded in relation to the number of
hours worked and the severity based on days of absence in relation to
the number of hours worked and is calculated by adding and weighing
the two indices (IF and IG)”.
10%
Sustainability
indexes
Confirmation of the inclusion and maintenance
of Snam at levels of excellence in the DJSI,
Ftse4Good, CDP Climate Change and Sustainalytics
sustainability indices.
5%
Sustainable
Finance
Increase in €m of sustainable financing 5%
Short term
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