Rivalry Corp. — Regulatory Filings 2021

Sep 17, 2021

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September 17, 2021

Ontario Securities Commission British Columbia Securities Commission Alberta Securities Commission New Brunswick Financial and Consumer Services Commission Office of the Superintendent of Securities, Service Newfoundland & Labrador

Re: PMML Corp.

Dear Sir/Madam:

We refer to the long form Prospectus of PMML Corp. dated September 17, 2021 (the “ Prospectus ”). We consent to being named in the Prospectus and to the use in the Prospectus of our independent auditor’s report dated May 28, 2021, to the shareholders of PMML Corp. on the following consolidated financial statements of PMML Corp.:

• a. Consolidated Statements of Financial Position as at December 31, 2020, and 2019.

• b. Consolidated Statements of Operations and Comprehensive Income (Loss), Changes in Shareholders’ Equity and Cash Flows for years ended December 31, 2020, and 2019.

We report that we have read the Prospectus and all information therein and have no reason to believe that there are any misrepresentations in the information contained therein that are derived from the financial statements upon which we have reported or that are within our knowledge as a result of our audit of such financial statements. We have complied with Canadian generally accepted standards for an auditor’s consent to the use of a report of the auditor included in an offering document, which does not constitute an audit or review of the prospectus as these terms are described in the CPA Canada Handbook – Assurance.

Yours truly,

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Macias Gini & O’Connell LLP 2029 Century Park East, Suite 1500 Los Angeles, CA 90067

www.mgocpa.com