CubicFarm Systems Corp. — Capital/Financing Update 2021

May 28, 2021

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May 28, 2021

VIA SEDAR

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

Dear Sirs/Mesdames:

Re: CubicFarm Systems Corp. (the “Company”) – Prospectus Supplement dated May 28, 2021 to the Amended and Restated Short Form Base Shelf Prospectus dated April 20, 2021

We refer to the prospectus supplement dated May 28, 2021 (the “ Prospectus Supplement ”) to the amended and restated short form base shelf prospectus dated April 20, 2021 of the Company with respect to the issuance of common shares in the capital of the Company, as described in the Prospectus Supplement.

We hereby consent to the references to our firm name on the cover page and under the headings “Interest of Experts” and references to our name and our legal opinion under the heading “Eligibility for Investment” in the Prospectus Supplement.

We confirm that we have read the Prospectus Supplement and have no reason to believe that there are any misrepresentations in the information contained therein that are derived from our legal opinions 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

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