EDPM overview

›March 2021

2

Operating Cash

Flows

$336 million, highest quarterly

operating cash flow since

Q4 2017

Adjusted Net

Income from E&C

$78.9 million,

up from a loss of $284.1

year-over-year

Cash Balance

Increased

87% year-over-year, net

recourse debt to EBITDA

ratio now 2.1x

SNCL Projects

Forward-Looking StatementsReference in this presentation, and hereafter, to the “Company” or to “SNC-Lavalin” means, as the context may require, SNC-Lavalin Group Inc. and all or some of its subsidiaries or joint arrangements or

associates, or SNC-Lavalin Group Inc. or one or more of its subsidiaries or joint arrangements or associates.

Statements made in this presentation that describe the Company’s or management’s budgets, estimates, expectations, forecasts, objectives, predictions, projections of the future or strategies may be “forward-

looking statements”, which can be identified by the use of the conditional or forward-looking terminology such as “aims”, “anticipates”, “assumes”, “believes”, “cost savings”, “estimates”, “expects”, “goal”, “intends”,

“may”, “plans”, “projects”, “should”, “synergies”, “target”, “vision”, “will”, or the negative thereof or other variations thereon. Forward-looking statements also include any other statements that do not refer to historical

facts. Forward-looking statements also include statements relating to the following: i) future capital expenditures, revenues, expenses, earnings, economic performance, indebtedness, financial condition, losses

and future prospects; ii) business and management strategies and the expansion and growth of the Company’s operations; and iii) the expected impacts of the ongoing COVID-19 pandemic on the business and its

operating and reportable segments as well as elements of uncertainty related thereto and other near-term risks and uncertainties. All such forward-looking statements are made pursuant to the “safe-harbour”

provisions of applicable Canadian securities laws. The Company cautions that, by their nature, forward-looking statements involve risks and uncertainties, and that its actual actions and/or results could differ

materially from those expressed or implied in such forward-looking statements, or could affect the extent to which a particular projection materializes. Forward-looking statements are presented for the purpose of

assisting investors and others in understanding certain key elements of the Company’s current objectives, strategic priorities, expectations and plans, and in obtaining a better understanding of the Company’s

business and anticipated operating environment. Readers are cautioned that such information may not be appropriate for other purposes.

Forward-looking statements made in this presentation are based on a number of assumptions believed by the Company to be reasonable as at the date hereof. The assumptions are set out throughout the

Company’s 2020 annual Management Discussion and Analysis (MD&A) (particularly in the sections entitled “Critical Accounting Judgments and Key Sources of Estimation Uncertainty” and “How We Analyze and

Report our Results”). If these assumptions are inaccurate, the Company’s actual results could differ materially from those expressed or implied in such forward-looking statements. In addition, important risk factors

could cause the Company’s assumptions and estimates to be inaccurate and actual results or events to differ materially from those expressed in or implied by these forward-looking statements. These risk factors

are set out in the Company’s 2020 MD&A.

Non-IFRS Financial Measures and Additional IFRS MeasuresThe Company reports its financial results in accordance with IFRS. However, the following non-IFRS measure is used by the Company in this presentation: Segment Adjusted EBIT to revenue ratio. Additional

details for this non-IFRS measure can be found in Section 13 of SNC-Lavalin’s 2020 MD&A, filed with the securities regulatory authorities in Canada, available on SEDAR at www.sedar.com and on the

Company’s website at www.snclavalin.com under the “Investors” section, including the various reconciliations of non-IFRS to the nearest corresponding IFRS measures in sections 4,8.5 and 13.3 of the 2020

MD&A. Non-IFRS financial measures do not have any standardized meaning under IFRS and therefore may not be comparable to similar measures presented by other issuers. Management believes that, in

addition to conventional measures prepared in accordance with IFRS, these non-IFRS measures provide additional insight into the Company’s operating performance and financial position and certain investors

may use this information to evaluate the Company’s performance from period to period. However, these non-IFRS financial measures have limitations and should not be considered in isolation or as a substitute for

measures of performance prepared in accordance with IFRS. Furthermore, certain non-IFRS financial measures and additional IFRS measures are presented for each of PS&PM” and Capital, as the Company

believes that such measures are useful mainly as activities are usually analyzed separately by the Company.

3

George Nash

CEO North America

› Joined Atkins / EDPM in 2016. More than 30 years of experience providing a wide range of consulting, engineering, design, construction and commissioning services to markets worldwide.

› Bachelor’s degree in Mechanical Engineering from Brown University and registered professional engineer.

Philip Hoare

President EDPM

› Joined Atkins in 1997 and has held

several senior positions including

leading the transportation division and

operations across Europe and CEO

UK & Europe from 2017 to 2019.

› Member of Institution of Civil

Engineers.

Simon Cole

Senior Vice President, Finance

› 35 years with Atkins / EDPM.

Business and major project P3/PPP

experience as Controller and Finance

Director.

› Fellow of the Chartered institute of

Certified Accountants.

Richard Robinson

CEO UK & Europe

› Previously the Chief Operating Officer at HS2 and has held senior leadership roles at AECOM, BAA Heathrow, and Anglo American following his early career at ICI.

› Chartered Chemical Engineer.

Catherine Li

CEO Asia Pacific

› Appointed in January 2020. Over 25 years’ experience across several geographies.

› Prior to Atkins / EDPM, held various key roles in the infrastructure consultancy and financial services sectors.

Bharat Gala

Senior Vice President, India

› Appointed in November 2019. 10 years with SNC-Lavalin.

› Head of Global Design Centre in India. Over 30 years of experience in the engineering industry having worked both in India and the United States.

EDPM leadership

Cris Dedigama

CEO Middle East

› Appointed in November 2019. 30 years experience leading projects and managing operations in the engineering and construction sector.

› Developed SNC-Lavalin’s Infrastructure sector in the Middle East region.

Global professional services business

EDPM

World-Class global

professional services

business with highly

respected Atkins and

Faithful+Gould brands

with 80+ years of design

and engineering history

Focused on our clients’

key future challenges

from efficient delivery of

infrastructure,

engineering a net zero

future and tackling the

impacts of societal

expectations, water and

climate change in our

core geographies

Bringing our talented

people together from

around the business,

leveraging our

multidisciplinary team

of 19,000+

professionals to deliver

comprehensive end-to-

end engineering, design

and project

management solutions

Harnessing data and

technology to lead the

transformation of the

sector through our

Digital Future programme

and an increasing focus

on Engineering Net Zero

solutions for our clients

and their projects

4

5

UNITED STATES

2,900 FTE

$1.0B

UK & EUROPE

8,800 FTE

$1.8B

M IDDLE

EAST

1,400 FTE

$0.3B

ASIA PACIFIC

1,100 FTE

$0.2B

CANADA

2,700 FTE

$0.4B

INDIA

2,200 FTE

GDC

Notes: FTE figures are those for full-time equivalent employees as at Q4 2020.

Financial data is full year 2020 revenue.

GDC is the Global Design Centre – highly-skilled resources providing technical capabilities for global operations and project delivery.

The Engineering, Design & Project

Management (“EDPM”) sector is made up

of more than 19,000 passionate people

who work in four major geographies –

Asia Pacific, the Middle East, UK &

Europe and North America.

Together, we plan, design and enable the

delivery of complex projects and major

programmes across transportation,

energy and infrastructure.

Our work spans many different sectors,

but our approach is always the same.

Whatever the industry, we strive to build

strong relationships by understanding the

challenges our clients face, sharing their

vision and helping them to transform

potential into reality.

19,000+ employees building

strong relationships with clients

EDPM (2020)

19,100 FTE

$3.7B Revenue

6

› Our business relies on attracting and

retaining the most talented and capable

people in the sector

› The Atkins and Faithful+Gould brands

are key to attraction globally – we hired

400 graduates in 2020

› We aim to be the employer of choice in

our sector, championing diversity,

inclusion and wellbeing –

acknowledged through numerous

awards

E M P L O Y E R A W A R D S

EDPM is a premier employer in the industry

Our people driving growth

Attracting and retaining

top engineering talent

7

Our people push boundaries and

create value as trusted advisors to

our clients and partners.

We are especially focused on

accelerating the creation of additional

value to our clients by harnessing

data and technology to better design,

deliver and manage the built

environment for a decarbonized,

climate resilient future.

$3.9B $3.7B

9.2%8.1%

FY 2019 FY 2020

Revenue (in $B) and Segment adjusted EBIT to

revenue ratio* (%)

E D P M K E Y D I F F E R E N T I A T O R S

› Strong client relationships with trusted advisor

reputation

› Our people are known for their problem-solving

capability and ability to deal with complexity

› Digital capabilities – harnessing data and technology

and using Global Design Centre skills

› Full spectrum, end to end engineering consultancy

services across a broad range of markets

› International expertise – strong global footprint across

North America, UK & Europe, Middle East and Asia

Pacific

A resilient business with industry leading profitability

EDPM is a professional services business

Note: Segment adjusted EBIT to revenue ratio* % calculated on a gross revenue basis

*Non-IFRS financial measures. Refer to Section 13 of the Company’s 2020 MD&A for Non-IFRS financial measures definition and reconciliation to IFRS measures

www.snclavalin.com/en/investors/financial-information/annual-reports/2020. See also the cautionary statement regarding Non-IFRS financial measures at slide 2

8

35%

34%

31%

S E R V I C E L I N E

Largely services oriented business with a

focus on design, consultancy and project &

programme management

M A R K E T

Diversified revenue base increases

resilience against sector cyclicality

Design

Consultancy

Project & Programme

Management

Rail

Roads

Buildings

Water &

Environment

Defence & Security

Industrial & Energy

Airports & Ports

Other

38%41%

31%

24%

4%

23%

22%

21%

11%

10%

8%5%

C L I E N T T Y P E

Blue chip public and private sector client

base with recurring business and over

15,000 contracts globally

Two thirds of revenue sourced from

government procurement agencies and

regulated industries

National Government /

Regulated

Local Government

Private

EDPM is a professional services business

An attractive diversified business

Note: Charts show analysis of 2020 Revenue

9

Significant growth potential

across core geographies

U K & E U R O P E

Continued government commitment

to infrastructure investment allows

focus on well-funded transport,

infrastructure, water and defence

markets with a strong pipeline of

opportunities

More difficult market conditions

expected in the aviation, education

and commercial property markets

Continued diversification from public

infrastructure in Hong Kong –

position for opportunities in

HK/Macau

Property activity centred on urban

planning, architecture and design in

mainland China – position for

opportunities in Greater Bay Area

Exploring potential to expand in

Australia

Multidisciplinary integrated

services with emphasis on major

projects and programmes

Transport, infrastructure and

property, in specific geographies

Other sectors being explored

M I D D L E E A S T A S I A P A C I F I CN O R T H A M E R I C A

Aim to grow core, market-leading

business in transportation; further

opportunities in coastal resiliency for

big cities

Attractive Canadian market where

infrastructure spending remains a

government priority – focus on rail &

transit and roads & bridges sectors

together with environment &

geosciences

E X A M P L E O F C L I E N T S

M A R K E T F O C U S

10

Some of ourmarket capabilities

Global

Strength and

Depth in Rail

and TransitCrossrail, London, UK

Technical

Excellence in

Roads and

BridgesProject Neon, Nevada, USA

World-class

Reputation

in Cities &

DevelopmentMeixi Lake sustainable city, China

11

Some of ourservice line capabilities

ConsultancyStrategy, planning

and analysis

Design and

EngineeringThe Box, Plymouth

Project and

Programme

ManagementBulgari Resort and Residences,

Jumeira Bay, Dubai, UAE

12

EDPM’s role within SNC-Lavalin is dedicated

to making the world work better for all by

bringing people, data and technology together

to radically transform the way infrastructure is

designed, delivered and operated.

Drive performance

and growth in our

core

› Grow profitably in

core markets

› Leading positions

on globally

significant

transformational

projects

Expand in

focus areas

› Geographical

focus: North

America

› Service line focus:

Programme

management

› Market sector

focus: Water /

EDAROTH

(housing)

Lead the

transformation of

the infrastructure

sector by

harnessing data

and technology

› Digital Future

programme

› Engineering Net

Zero

Embrace new

ways of working

› Talent

management and

investment in the

skills and

capabilities of our

people

› Equality, diversity

& inclusion (ED&I)

› Increase market

and service line

collaboration

across the

organisation

EDPM Strategy

Global professional services business

Digital

Transformation

Lead the

transformation of how

infrastructure is

delivered

13

Leading

diversity in our

sector

Delivering better

outcomes for all

Engineering

Net Zero

In partnership with our

planet

Tackling the

global housing

crisis

With world class

purpose-led solutions

Meeting the

world’s water

needs

Resilience and future

proofing

T R A N S F O R M A T I O N A L P R O G R A M M E S

Our work impacts the big global themes through our work on transformational programmes

EDPM Strategy

14

Transforming

how we design

and how we

collaborate

Creating a

global

programme

management

service

Developing a

digital twin

service and

solution

Creating an

environment to

store and

connect data

Design

TransformationProgramme

Management

Digital

Twin

Connected Data

Ecosystem

Digital

Transformation

Lead the

transformation of how

infrastructure is

delivered

Leveraging data and technology to bring

unrivalled certainty to infrastructure

delivery across the full asset lifecycle

Transforming the industry through data

S K I L L S

Talent management

and investment in the

skills and capabilities

of our people

I N C L U S I O N

Equality, diversity &

inclusion (ED&I)

C O L L A B O R A T I O N

Market and service line

collaboration across the

organization

We want to help our colleagues, our clients and our stakeholders drive greater value from

their projects by enabling them to learn, experiment and collaborate in a cutting edge,

technology driven environment.

15

Leading

diversity in our

sector

Delivering better

outcomes for all

Transforming the industry through people

A better working world is delivered by people from a diversity of

backgrounds, perspectives and ideas. We are dedicated to

leading change in our industry, harnessing the power of people to

drive superior outcomes for our clients and society.

16

Engineering

Net Zero

In partnership with our

planet

Engineering net zero for a better future

A critical part of a better working world is taking action today to deliver a net zero future for tomorrow. In partnership with

our planet, we’re working on low-carbon engineering solutions to address the world’s most pressing problem.

Strategic CarbonPlanning

Net Zero EnergySystems

Net Zero Buildings& Cities

Net ZeroTransportation

Net Zero Industry & Infrastructure

Greenhouse GasRemovals Wh

ole

Lif

e C

arb

on

Ma

na

ge

me

nt

Cli

ma

te R

esilie

nce a

nd

Ad

ap

tati

on We are well placed to offer

the end-to-end solutions that

clients are increasingly

demanding to minimize

carbon across the life of an

asset.

17

Tackling the

global housing

crisis

With world class

purpose-led solutions

EDAROTH utilises the EDPM

designed housing system for

scalable application and 50%

faster build than traditional

construction

Tackling the housing crisis

We are dedicated to a world that works better for all, so we

relentlessly find new ways to ensure people from all walks of life

thrive. At EDAROTH we are tackling the social and affordable

housing crisis by transforming how it is delivered.

18

Meeting the

world’s water

needs

Resilience and future

proofing

Meeting the world’s water needsWater is an increasingly important but unevenly distributed resource globally. We are deploying the right skills and the right people to

ensure that water services are fit for today and tomorrow.

We work side-by-side with our clients to ensure that their

water services are fit for today as well as tomorrow, and

together, we challenge existing methods and develop

new solutions, whether that be the introduction of new

assets or extracting more value from existing ones.

19

› The largest roads

project in Europe

› High Speed rail

› Modular housing

› Bringing finance to support

infrastructuredevelopment

› Reimagining infrastructure

in Scandinavia

-

U N I T E D STATES

› Infrastructure investment

to support urban growth

› Tackling global climate

resilience

C A N A D A

› Infrastructure investment in fast

growing cities

› Enabling development in

rail & transit

UK & E U R O P E

A S I A P A C I F I C

› Greater Bay Area creating the

megalopolis of the Pearl River Delta

› Great opportunities to fuel cities in

Australia

M I D D L E E A S T

› Cities of the future

› Opportunities in programme

management, environmental and

security

Transformational programmes

Our work impacts the big global themes through

our work on transformational programmes

3 4World-Class Global

Professional Services

Business

World-Class global Professional

Services business with highly

respected Atkins and

Faithful+Gould brands with

80+ years of design and

engineering history

Focussed on our clients’

key future challenges

From efficient delivery of

infrastructure, engineering a

net zero future and tackling

the impacts of societal

expectations, water and

climate change in our core

geographies

Bringing our talented

people together from

around the business

Leveraging our

multidisciplinary team of

19,000 professionals to deliver

comprehensive end-to-end

engineering, design, and

project management solutions

Harnessing data and

technology to lead the

transformation of the sector

We will do this through our Digital

Future programme with an

increasing focus on Engineering

Net Zero solutions for our clients

and their projects

20

21

Key takeaways

Our values are the essence of our company’s identity.

They represent how we act, speak and behave together,

and how we engage with our clients and stakeholders.

We do the right thing,

no matter what, and are

accountable for our actions.

We put safety at the heart of

everything we do, to safeguard

people, assets and the environment.

We redefine engineering

by thinking boldly, proudly

and differently.

We work together and embrace

each other’s unique contribution

to deliver amazing results for all.

21