Notice of Annual General Meeting and of Availability of Proxy Materials

Notice is hereby given that Stantec Inc. ("Stantec" or the "Company") will hold its annual general meeting:

When: Thursday, May 9, 2024 10:30 AM (MDT)

Where: Virtual meeting via live audio webcast online athttps://web.lumiagm.com/281567372Meeting ID: 281-567-372

Password: stantec2024 (case sensitive)

The meeting will be held to address the following business:

Business of the Meeting

For more information

1

Receive Stantec's financial statements for the year ended December 31, 2023,

Page 12 of the Circular

together with the auditor's report on those statements

and Stantec's 2023 Annual Report

2

Elect each of the directors of Stantec to hold office until the end of the next

Pages 12 and 14 of the Circular

annual meeting or until their successors are appointed

3

Appoint the auditor of Stantec and authorize the directors to fix the auditor's

Page 13 of the Circular

remuneration

4

Consider a nonbinding advisory resolution on Stantec's approach to executive

Page 13 of the Circular

compensation

5

Transact any other business as may properly be brought before the meeting

The board has fixed the close of business on March 15, 2024, as the record date for the determination of shareholders entitled to notice of and to vote at the meeting. Only shareholders of record on that date are entitled to vote on the matters listed in this Notice.

Notice-and-Access

As permitted by Canadian securities regulators, Stantec is

WHERE YOU CAN ACCESS THE CIRCULAR

using the "notice-and-access" mechanism for delivery of its

Management Information Circular ("Circular") for our annual

On our website: stantec.com

general meeting to both registered and beneficial

under Investors // Financial Reports & Filings

shareholders. This means that our Circular is being posted

online for you to access, rather than being mailed out. This

On our profile on SEDAR+: sedarplus.ca

Notice includes information on how to access our Circular

online and how to request a paper copy. Notice-and-access

On our profile on EDGAR: sec.gov/edgar

gives shareholders more choice, substantially reduces our

printing and mailing costs, and is environmentally friendly as

it reduces paper and energy consumption.

It is very important that you read the Circular carefully before voting your shares.

Voting

Please note that you cannot vote by returning this Notice. Enclosed with this Notice, you will find a form of proxy or a voting instruction form that you can use to vote your shares of Stantec.

You may vote your shares online, by phone or mail. Please refer to the instructions on your separate proxy or voting instruction form on how to vote using these methods.

Registered shareholders:

Beneficial shareholders:

Computershare must receive your proxy form, or you

Your intermediary must receive your voting instructions with

must have voted by Internet or telephone before

sufficient time for your vote to be processed by Computershare

10:30 AM (MDT) on Tuesday, May 7, 2024.

before 10:30 AM (MDT) on Tuesday, May 7, 2024. Please refer to

your voting instruction form for more information.

How to request a paper copy of the Circular

Upon request, Stantec will provide a paper copy of the Circular to any shareholder, free of charge, for a period of one year from the date the Circular is filed on SEDAR+. Here is how you can request a paper copy:

Before the meeting

If your request is made before the date of the meeting, the Circular will be sent to you within three business days of receipt of your request. To ensure receipt of the paper copy in advance of the voting deadline and meeting date, we estimate that your request must be received no later than 10:30 AM (MDT) on Monday, April 29, 2024 (this factors the three-business day period for processing requests as well as typical mailing times).

Registered Shareholders

Beneficial Shareholders

Call the fulfillment service line at 1-866-962-0498. Please note

Call the fulfillment service line at 1-877-907-7643. Please note

that you will be asked to provide the 15-digit control number

that you will be asked to provide the 16-digit control number

indicated on your form of proxy.

indicated on your voting instruction form.

After the meeting

If the request is made on or after May 9, 2024, the Circular will be sent to you within ten calendar days of receiving your request. Call 1-844-916-0609 for a copy of the Circular.

Please note that you will not receive another form of proxy or voting instruction form; please retain your current one to vote your shares.

If you have any questions regarding this Notice, notice-and-access, or the meeting, please call

  • • Computershare Trust Company of Canada at 1-800-564-6253 (if you are a registered shareholder) or

  • • Broadridge Financial Solutions, Inc. at 1-844-916-0609 (if you are a beneficial shareholder)

By order of the board of directors,

Paul J. D. Alpern

Senior Vice President, Secretary and General Counsel March 15, 2024

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Disclaimer

Stantec Inc. published this content on 27 March 2024 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 27 March 2024 10:57:02 UTC.