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Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

The Board of Directors

Cronos Group Inc.

We consent to the incorporation by reference in the registration statements (No. 333-237528 and No. 333-226131) on Form S-8 of our reports dated February 29, 2024, with respect to the consolidated financial statement included in this Annual Report on Form 10-K.

/s/ KPMG LLP

Chartered Professional Accountants, Licensed Public Accountants

February 27, 2025

Vaughan, Canada