CWB-Management Proxy Circular-2023-EN

Q: How many shares are entitled to vote?

A: As of our record date, there were 96,229,155 fully paid and non-assessable common shares outstanding in the capital of CWB. Each common share holds one vote.

Q: Who can vote?

A: All holders of common shares at the close of business on our record date may vote their shares, unless described below under “Who cannot vote”.

Q: Who cannot vote?

A: Shares beneficially owned by the following entities or persons cannot be voted:

• The Government of Canada or a province; • The government of a foreign country or a political subdivision of a foreign country; • An agency of any of those entities listed above; or • Any person who has acquired more than 10% of any class of shares of CWB without the approval of the Minister of Finance (Canada).

In addition, if a person, or entity controlled by any such person, beneficially owns, in the aggregate, more than 20% of the eligible votes that may be cast, that person or entity may not cast any votes on the common shares.

To our knowledge, no person, directly or indirectly, owns or exercises control or direction over common shares carrying 10% or more of the votes attached to CWB ’ s outstanding common shares.

Q: How do I vote?

A: How you vote depends on whether you are a registered or non-registered (beneficial) shareholder. We recommend that you vote in advance of the meeting by completing and submitting your voting information form or proxy form (as applicable) by the time indicated.

Registered Shareholders

Non-Registered (Beneficial) Shareholders

You are a registered shareholder if you hold the common shares in your own name. If that is the case, your name appears on your physical share certificate or in a Direct Registration Statement issued by Computershare confirming your holdings.

You are a non-registered shareholder if your shares are held in the name of an intermediary (which is usually a trust company, securities broker, or other financial institution) rather than in your own name.

Your intermediary will send you a voting instruction form. Carefully follow the instructions to vote your common shares.

To vote by proxy

To vote by proxy

• You may appoint someone to represent you as proxyholder and vote your shares at the meeting. • Please complete and sign the proxy form sent to you and return it in the postage- prepaid envelope provided. • You may also vote by telephone at the number provided on your proxy form, or online at www.investorvote.com.

• You can either mark your voting instructions on the voting instruction form or you can appoint another person (called a proxyholder) to vote your common shares for you. In either case, you will need to complete and return the voting instruction form as instructed by your intermediary. • If you have any questions about the documentation required, please contact your intermediary.

To vote at the meeting

To vote at the meeting

• To vote virtually at the meeting: - Do not complete the proxy form or return it to us. Register with Computershare in advance of the meeting and receive a 15-digit control number. - Registered shareholders who have a 15-digit control number, along with duly appointed proxyholders who were assigned a username by Computershare will be able to vote and submit questions during the meeting. To do so, please go to web.lumiagm.com/436151338 prior to the start of the meeting to log in. Click o n “I have a login” and enter your 15 -digit control number or username along with the password “ cwb2023 ”. - Once logged into the LUMI virtual AGM platform, use the voting function. You will be prompted to vote on each item of business when the Chair calls for a vote.

• To vote virtually at the meeting: - Insert your name in the space provided for appointing a proxyholder and sign and return the voting instruction form as instructed by your intermediary. - Do not complete the voting section of the voting instruction form, as you will vote at the meeting. - If no space is provided for you to insert your name on the form, please contact your intermediary for instructions. - Please register with Computershare as proxyholder in advance of the meeting. - Once logged into the LUMI virtual AGM platform, use the voting function. You will be prompted to vote on each item of business when the Chair calls for a vote.

Canadian Western Bank- Management Proxy Circular | 4

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