Nexus Uranium Corp. — AGM Information 2020

Mar 19, 2020

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8th Floor, 100 University Avenue Toronto, Ontario M5J 2Y1 www.computershare.com

Security Class

Holder Account Number

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Form of Proxy – Annual Meeting to be held on Friday, May 8, 2020

This Form of Proxy is solicited by and on behalf of Management.

Notes to Proxy

1. Every shareholder has the right to appoint a proxyholder (who need not be a shareholder) other than the persons designated in this Form of Proxy to attend and act on their behalf at the Annual Meeting. If you wish to appoint a proxyholder other than the persons whose names are printed herein, please insert the name of such other proxyholder in the space provided (see reverse).

2. If the shares represented by this Proxy are registered in the name of more than one owner (for example, joint ownership, trustees, executors, etc.), then all those registered should sign this Proxy. If you are voting on behalf of a corporation or another individual you may be required to provide documentation evidencing your power to sign this Proxy with signing capacity stated.

3. This Proxy should be signed in the exact manner as the name appears on the Proxy.

4. If this Proxy is not dated, it will be deemed to bear the date on which it was mailed by Management to the shareholder.

5. The shares represented by this Proxy will be voted or withheld from voting as directed by the shareholder, however, if such a direction is not made in respect of any matter this Proxy will be voted as recommended by Management as set forth in the Management Proxy Circular accompanying this Form of Proxy.

6. This Proxy confers discretionary authority in respect of amendments to matters identified in the Notice of Annual Meeting or other matters that may properly come before the meeting.

7. This Proxy should be read in conjunction with the accompanying documentation provided by Management.

Proxies submitted must be received by 11:00 a.m., Central Time, on May 6, 2020.

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Instead of mailing this Proxy, you may choose one of the two voting methods outlined below to vote this Proxy.

VOTE USING THE TELEPHONE OR INTERNET 24 HOURS A DAY 7 DAYS A WEEK!

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To Vote Using the Telephone To Vote Using the Internet
• Call the number listed BELOW from a touch tone • Go to the following web site:
telephone. www.investorvote.com
1-866-732-VOTE (8683) Toll Free
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If you vote by telephone or the Internet, DO NOT mail back this Proxy.

Voting by mail is the only method for securities held in the name of a corporation or securities being voted on behalf of another individual.

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To Receive Documents Electronically
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• You can enroll to receive future securityholder communications electronically by visiting www.computershare.com/eDelivery and clicking on “Sign Up for eDelivery”.

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• Smartphone?
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Scan the QR code to vote now.
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Voting by mail or by Internet are the only methods by which a holder may appoint a person as proxyholder other than the Management nominees named on the reverse of this Proxy.

To vote by telephone or the Internet, you will need to provide your CONTROL NUMBER listed below.

CONTROL NUMBER

01JU9A

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Appointment of Proxyholder

I/We, the undersigned shareholder of Common Shares issued by IGM Financial Inc. (the “Corporation”) hereby appoint(s):

R. Jeffrey Orr and Jeffrey R. Carney, and both of them acting alone,

OR

instead of all the foregoing (print the name of the person you wish to appoint in the box to the right),

as my/our nominee for the undersigned to attend, vote and act for and in the name of the undersigned at the Annual Meeting of Shareholders of the Corporation to be held on Friday, May 8, 2020 or any adjournment thereof, with full power of substitution and with all the powers which the undersigned could exercise if personally present and with authority to vote or withhold from voting as herein specified (or if no directions have been given, as the proxyholder sees fit).

The Board of Directors and management recommend Shareholders vote FOR the following matters:

1. Election of Directors

For Withhold For Withhold For Withhold For Withhold 1. Marc A. Bibeau 2. Jeffrey R. Carney 3. Marcel R. Coutu 4. André Desmarais 5. Paul Desmarais, Jr. 6. Gary Doer 7. Susan Doniz 8. Claude Généreux 11. Susan J. 9. Sharon Hodgson 10. Sharon MacLeod McArthur 12. John McCallum 14. Gregory D. 13. R. Jeffrey Orr Tretiak 15. Beth Wilson

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For Withhold
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2. Appointment of Auditors

In respect of the appointment of Deloitte LLP, as auditors:

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At the discretion of such nominee with respect to amendments to the matters identified in the Notice of Annual Meeting and on such other business as may properly come before such meeting or any adjournment thereof.

Authorized Signature(s) – This section must be completed for your instructions to be executed. I/We authorize you to act in accordance with my/our instructions set out above. I/We hereby revoke any proxy previously given with respect to the Annual Meeting. If no voting instructions are indicated above, this Proxy will be voted as recommended by Management.

Quarterly Reports Request

Mark this box if you WANT to receive Quarterly Financial Statements and MD&A by mail. If you do NOT mark the box and return this form, Quarterly Reports will NOT be sent to you in 2020.

Signature(s) Date MM / DD / YY

Annual Report Request

Mark this box if you WANT to receive the 2020 Annual Report containing annual financial statements and MD&A. If you do NOT mark the box and return this form, the 2020 Annual Report will NOT be sent to you unless you subsequently request it.

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