SNC Lavalin : 2021 GRI Report

APPENDIX B GRI INDEX

2021 SUSTAINABILITY REPORT

SNC-L SUSTAINABILITY REPORT 2021 APPENDIX B GRI INDEX

G E N E R A L D I S C L O S U R E

102-1	102-3
Name of the organization		Location of headquarters
REPORTING REQUIREMENTS		REPORTING REQUIREMENTS

1. Report the name of the organization.

1. Report the location of the organization's headquarters.

SNC - L AVALIN'S 2021 DISCLOSURE

SNC-Lavalin Group Inc. (the Company).

102-2

Activities, brands, products, and services

REPORTING REQUIREMENTS

1. A description of the organization's activities.
2. Primary brands, products, and services, including an explanation of any products or services that are banned in certain markets.

SNC - L AVALIN'S 2021 DISCLOSURE

1. Please refer to Section 1 Our business of the Management's Discussion and Analysis (MD&A), starting on p. 103 of our 2021 Annual Report.
2. Please refer to the "Market and services" Section of our Website athttps://www.snclavalin.com/en/markets-and-servicesSNC-Lavalin does not sell products that are banned in any markets. SNC-Lavalin does however offer services that could potentially be subject to public debate, such as services to the nuclear industry, as well as both the Canadian and UK ministry of defense. SNC-Lavalin is not currently subject to direct questions or expressions of concern regarding these services.

SNC - L AVALIN'S 2021 DISCLOSURE

1. The Company's headquarters and registered office is located at 455 Rene-Levesque Boulevard West, Montreal, Quebec, Canada H2Z 1Z3.

102-4

Location of operations

REPORTING REQUIREMENTS

Report the number of countries where the organization operates, and names of countries where either the organization has significant operations or that are specifically relevant to the sustainability topics covered in the report.

SNC - L AVALIN'S 2021 DISCLOSURE

As of December, 2021, the Company had permanent offices in 39 countries, including the major offices located in the following regions:

• The Americas: Brazil, Canada, Peru, United States.
• Europe: Denmark, Ireland, Norway, Romania, Sweden, United Kingdom.
• Africa & the Middle East: Algeria, Oman, Qatar, Saudi Arabia, United Arab Emirates.
• Asia & Oceania: Australia, China, Hong Kong, India, Singapore.

SNC-Lavalin has temporary offices in additional countries and conducts projects in some 100 countries worldwide.

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SNC-L SUSTAINABILITY REPORT 2021 APPENDIX B GRI INDEX

102-5

Ownership and legal form

REPORTING REQUIREMENTS

1. Report the nature of ownership and legal form.

SNC - L AVALIN'S 2021 DISCLOSURE

The Company was incorporated under the laws of Canada by Letters Patent on May 18, 1967, and was continued under the Canada Business Corporations Act on March 24, 1980. The shares of the Company are traded on the Toronto Stock Exchange (TSX: SNC).

As stated on p. 57 of our 2021 Financial report, there were no stock options outstanding in 2021 and 2020. The stock option compensation cost recorded in the year ended December 31, 2021 was $nil. The Company did not issue and did not repurchase any shares during either 2021 or

2020. The number of common shares outstanding as at February 16, 2022 was 175,554,252.

Other than the CDPQ Loan (as amended) or as elsewhere described in the Company's 2021 Annual Information Form, to the knowledge of the Company, none of the (i) directors or executive officers of the Company, (ii) shareholders of the Company that beneficially own, or control or direct, directly or indirectly, more than 10% of any class of shares of the Company, or (iii) any associate

or affiliate of the persons referred to in (i) and (ii), has or has had any material interest, direct or indirect, in any transaction during the three most recently completed financial years or the current financial year that has materially affected or is reasonably expected to materially affect the Company or any of its affiliates or subsidiaries.

102-6

Markets served

REPORTING REQUIREMENTS

1. Markets served, including:
2. 1. geographic locations where products and services are offered;
   2. sectors served;
   3. types of customers and beneficiaries.

SNC - L AVALIN'S 2021 DISCLOSURE

i.ii. For a summary of markets served, including geographic breakdowns and sectors, please see sections 1, "Our Business" on p.103 and following and 6, "Geographic Breakdown of Revenues" on p.131 of our 2021 Annual report, under the Management's Discussion and Analysis (MD&A).

1. The Company serves a wide range of customers in the public, quasi-public and private sectors. Section 4.2.4 of the MD&A,
   "ANALYSIS OF SEGMENT RESULTS AND PERFORMANCE," starting on p.121 of the 2021 Annual report, provides an overview of projects and clients by sectors (segments) of activity. It has to be noted that the Company offers professional services to other businesses and does not manufacture household or consumer products..

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SNC-L SUSTAINABILITY REPORT 2021 APPENDIX B GRI INDEX

102-7

Scale of the organization

REPORTING REQUIREMENTS

1. Report the scale of the organization, including:

• Total number of employees;
• Total number of operations;
• Net sales (for private sector organizations) or net revenues (for public sector organizations);
• Total capitalization broken down in terms of debt and equity (for private sector organizations);
• Quantity of products or services provided.

SNC - L AVALIN'S 2021 DISCLOSURE

As of December 31, 2021: Total number of

employees (headcount): approximately 31,000 (includes all employees and consultants, full and part time), representing about 29,000 Full Time Employee Equivalent (FTE).

Total number of operations: see section 1, "Our Business" on p.103 and following of our 2021 Annual Report.

For information on revenues, please see

p.44 and following of our Annual Report. For information on total capitalization please see Section 9 "Financial Position" on p.144 and following of our 2021 Annual Report.

102-8

UNGC PRINCIPLE 6: Labour

UN SDG 8 - Employment

Information on employees and other workers

REPORTING REQUIREMENTS

1. Total number of employees by employment contract (permanent and temporary), by gender.
2. Total number of employees by employment contract (permanent and temporary), by region.
3. Total number of employees by employment type (full-time and part-time), by gender.

1. Whether a significant portion of the organization's activities are performed by workers who are not employees. If applicable, a description of the nature and scale of work performed by workers who are not employees.
2. Any significant variations in the numbers reported in Disclosures 102-8-a,102-8-b, and 102-8-c (such as seasonal variations in the tourism or agricultural industries).
3. An explanation of how the data have been compiled, including any assumptions made.

SNC - L AVALIN'S 2021 DISCLOSURE

a-c. For employee breakdowns, see graphics on p.29 of the present report;

1. As of December 31st, 2021, 15% of employees were considered "temporary workers". Temporary Workforce includes Contractual employees, Casual employees, Temporary Agency workers and Consultants.
2. SNC-Lavalindoes not see seasonal fluctuations of its temporary workforce and does not conduct any activities akin to tourism or agriculture. Fluctuations do happen, however, following the life cycle of construction projects. But no significant change was noted through 2021.

102-9

Supply chain

REPORTING REQUIREMENTS

1. A description of the organization's supply chain, including its main elements as they relate to the organization's activities, primary brands, products, and services.

SNC - L AVALIN'S 2021 DISCLOSURE

SNC-Lavalin is currently implementing a vendor management system. At the end of this process, it is expected that the Company will be in better position to disclose this information.

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SNC-L SUSTAINABILITY REPORT 2021 APPENDIX B GRI INDEX

Also note that SNC-Lavalin is mainly an engineering consulting company offering professional services. As such, we primarily purchase office and IT equipment, as well as services related to the occupation of rented properties.

For all construction management and Operation

• Maintenance contracts, SNC-Lavalin's supply chain is based on the nature, type and geographic location of projects, and is therefore highly variable from one year to another as these factors evolve.

SNC-Lavalin expects all suppliers to abide to its Supplier Code of Conduct, available on

line at:https://www.snclavalin.com/~/media/Files/S/SNC-Lavalin/download-centre/en/policy/supplier-code-conduct-en.pdf

102-10

Significant changes to the organization and its supply chain

REPORTING REQUIREMENTS

1. Report any significant changes during the reporting period regarding the organization's size, structure, ownership or supply chain, including:

• Changes in the location of, or changes in, operations, including facility openings, closings, and expansions;
• Changes in the share capital structure and other capital formation, maintenance, and alteration operations (for private sector organizations);
• Changes in the location of suppliers, the structure of the supply chain, or in relationships with suppliers, including selection and termination.

SNC - L AVALIN'S 2021 DISCLOSURE

Please see section 3.2 of the MD&A "Executive Summary - Other Items", p.111, of the 2021 Annual report.

Most notably, on July 29, 2021, the Company completed the sale of a substantial portion of its Oil & Gas business and the sale of the remaining Saudi Arabian portion of the business was completed on August 15, 2021.

Notes are included throughout the present report in instances where this divestment had a significant effect on KPIs and indicators, such as the GHG emissions inventory.

102-11

Precautionary Principle or approach

REPORTING REQUIREMENTS

1. Report whether and how the precautionary approach or principle is addressed by the organization.

SNC - L AVALIN'S 2021 DISCLOSURE

As of December 31st, 2021, the Company was mainly an engineering service provider, not a manufacturer of products. As such, the Company employs risk management processes, which are being expanded to cover not only project-based risks, but also Company-wide risks.

Currently, the precautionary principle does not form part of corporate risk management processes. However, SNC-Lavalin applies best practices and manages environment and health and safety risks through its management systems which are compliant with ISO 14001 and 45001.

In addition, the vast majority of our clients' projects are subjected to environmental and/ or social impact assessments. SNC-Lavalin is thus expected not only to follow those reports' recommendations, but also to work in collaboration with clients and contractors to limit as much as possible the impacts and risks associated with the projects we work on.

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