MDA Space — Share Issue/Capital Change 2026

Jan 26, 2026

Blakes

Blake, Cassels & Graydon LLP
Barristers & Solicitors
Patent & Trademark Agents
1133 Melville Street
Suite 3500, The Stack
Vancouver, B.C. V6E 4E5 Canada
Tel: 604-631-3300 Fax: 604-631-3309

January 26, 2026

British Columbia Securities Commission
Alberta Securities Commission
Financial and Consumer Affairs Authority of Saskatchewan
The Manitoba Securities Commission
Ontario Securities Commission
Nova Scotia Securities Commission
Financial and Consumer Services Commission (New Brunswick)
Office of the Superintendent of Securities, Service Newfoundland and Labrador
Office of the Superintendent Securities (Prince Edward Island)
Office of the Superintendent of Securities, Northwest Territories
Office of the Yukon Superintendent of Securities
Office of the Superintendent of Securities (Nunavut)

Dear Sirs/Mesdames:

RE: Aritzia Inc. – Final Prospectus dated January 26, 2026

We refer to the final short form prospectus of Aritzia Inc. (the “Company”) dated January 26, 2026 (the “Prospectus”) relating to the offering of subordinate voting shares in the capital of the Company.

We hereby consent to the reference to our name on the cover page and under the heading “Legal Matters” in the Prospectus and to the reference to our name and inclusion of our opinion under the headings “Certain Canadian Federal Income Tax Considerations” and “Eligibility for Investment” in the Prospectus.

We confirm that we have read the Prospectus and have no reason to believe that there are any misrepresentations in the information contained in the Prospectus that are derived from our opinion referred to above or that are within our knowledge as a result of the services that we performed in connection with such opinion.

Yours truly,

(signed) “Blake, Cassels & Graydon LLP”

Blake, Cassels & Graydon LLP