Form of Proxy Card for Class A Exchangeable Limited Voting Shares – Form 6-K

1.

Election of Directors (Mark either For or Withhold for each of the following five nominees)

2.

Appointment of the External Auditor (Mark either (a) or (b))

(a)

FOR the appointment of Deloitte LLP as the external auditor and authorizing the directors to set its remuneration; or

(b)

WITHHOLD from voting in the appointment of Deloitte LLP as the external auditor and authorizing the directors to set its remuneration.

3.

Retuof Capital Resolution (Mark either (a) or (b))

(a)

FOR the Retuof Capital Resolution set out in the Circular; or

(b)

AGAINST the Retuof Capital Resolution set out in the Circular.

4.

Share Issuance Resolution (Mark either (a) or (b))

(a)

FOR the Share Issuance Resolution set out in the Circular; or

(b)

AGAINST the Share Issuance Resolution set out in the Circular.

5.

Bye-Law Amendment Resolution (Mark either (a) or (b))

(a)

FOR the Bye-Law Amendment Resolution set out in the Circular; or

(b)

AGAINST the Bye-Law Amendment Resolution set out in the Circular.

6.

Restricted Stock Plan Resolution (Mark either (a) or (b))

(a)

FOR the Restricted Stock Plan Resolution set out in the Circular; or

(b)

AGAINST the Restricted Stock Plan Resolution set out in the Circular.

Name of Shareholder:

Date: , 2023

Signature

If this proxy is not dated in the space provided, it will be deemed to be dated as of the date on which it was mailed to you by management of the company.

If the shareholder is an individual, please sign exactly as your shares are registered. If the shareholder is a corporation, this proxy must be executed by a duly authorized officer or attorney of the shareholder and, if the corporation has a corporate seal, its corporate seal should be affixed. If shares are registered in the name of an executor, administrator or trustee, please sign exactly as the shares are registered. If the shares are registered in the name of the deceased or other shareholder, the shareholder's name must be printed in the space provided, the proxy must be signed by the legal representative with his/her name printed below his/her signature and evidence of authority to sign on behalf of the shareholder must be attached to this proxy.

To be valid, this proxy must be signed, dated and deposited with the Corporate Secretary of the company c/o TSX Trust company via one of the below options, not later than 5:00 p.m. (EDT) on Tuesday, August 15, 2023 or, if the Meeting is adjourned, 48 hours (excluding Saturdays, Sundays and holidays) before any adjournment of the Meeting: by mail, to Attention: Proxy Department, P.O. Box 721, Agincourt, Ontario M1S 0A1; by fax at 416-595-9593; by email, with a scanned copy to [email protected]; by telephone, toll-free at 1-888-489-5760 or by Internet, at www.meeting-vote.com and by following the instructions for electronic voting. A shareholder will be prompted to provide the control number printed below the preprinted name and address. The telephone voting service is not available on the day of the Meeting, and registered shareholders may not appoint a person as proxyholder other than the management nominees named in this form of proxy when voting by telephone.

A shareholder has the right to appoint a person (who need not be a shareholder) to represent the shareholder at the Meeting other than the management representatives designated in this proxy. Such right may be exercised by inserting in the space provided the name of the other person the shareholder wishes to appoint and delivering the completed proxy to the Corporate Secretary of the company, as set out above. In addition, YOU MUST call 1-866-751-6315 (within North America) or (647) 252-9650 (outside of North America) or visit online at https://www.tsxtrust.com/control-number-request by 5:00 p.m. (EDT) on Tuesday, August 15, 2023 and provide TSX Trust Company with the required information for your chosen proxyholder so that TSX Trust Company may provide the proxyholder with a 13 digit control number via email. This control number will allow your proxyholder to log in to and vote at the Meeting. Without a control number your proxyholder will only be able to log in to the Meeting as a guest and will not be able to ask questions or vote.

Reference is made to the Circular for further information regarding completion and use of this proxy and other information pertaining to the Meeting, including the right of a shareholder to cumulate his or her votes in the election of directors. Unless otherwise directed by the shareholder who has given the proxy, management intends to cast the votes to which the holders of the class A exchangeable limited voting shares represented by such proxy are entitled equally among the proposed nominees for election by the holders of class A exchangeable limited voting shares.

If a share is held by two or more persons, any one of them present or represented by proxy at the Meeting may, in the absence of the other or others, vote in respect thereof, but if more than one of them are present or represented by proxy, they shall vote together in respect of each share so held.

The shares represented by this proxy form will be voted or withheld from voting as directed by the holder. In the absence of such directions, shares represented by proxy forms received by management of the company will be voted FOR items 1 through 6 and in favor of management's proposals generally, at the discretion of management.