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Exhibit 99.6

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Consent of Independent Registered Public Accounting Firm

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We hereby consent to the incorporation by reference in the Annual Report on Form 40-F for the year ended December 31, 2021 and in the Registration Statements on Form S-8 (333-234574 and 333-238528) of our report dated March 3, 2022 relating to the consolidated financial statements, which appears in this Form 40-F.

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/s/ PricewaterhouseCoopers LLP

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Chartered Professional Accountants, Licensed Public Accountants

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Oakville, Ontario, Canada

March 3, 2022

PricewaterhouseCoopers LLP

PwC Centre, 354 Davis Road, Suite 600, Oakville, Ontario, Canada L6J 0C5

T: +1 905 815 6300, F: +1 905 815 6499, www.pwc.com/ca

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“PwC” refers to PricewaterhouseCoopers LLP, an Ontario limited liability partnership.