Exhibit 99.3

CERTIFICATE

John Lewis Sims

I, John Lewis Sims, of Oakville, Ontario, do hereby certify that:

1. I am responsible for the preparation of the Tasiast Project, Mauritania, National Instrument 43-101 Technical Report effective date October 31, 2019 (the “Technical Report”).

2. I am employed by, and carried out these assignments for Kinross Gold Corporation, whose address is at 25 York Street, 17^th Floor, Toronto, Ontario, Canada, M5J 2V5, in the capacity as Senior Vice-President, Geology and Brown Fields Exploration and Qualified Person.

3. I am a graduate of the University of Montana (1992) with a B.A.Sc. in Geology and have 35 years of mining industry experience.

4. I am a member in good standing of the American Institute of Professional Geologists, AIPG Certification number CPG-10924.

5. I have read the definition of “qualified person” set out in National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”) and certify that by reason of my education, affiliation with a professional association (as defined in NI 43-101) and past relevant work experience, I fulfill the requirements to be a “qualified person” for the purposes of NI 43-101.

6. I visited the property which is the subject of the Technical Report most recently in June 2018.

7. I am not independent of the parties involved in the transaction for which this report is required, as defined in Section 1.4 of NI 43-101.

8. Other than in my capacity as an employee of Kinross, I have had no prior involvement with the property that is the subject of the Technical Report.

9. I have read NI 43-101 and the Technical Report has been prepared in compliance with NI 43-101.

10. As of the date of this certificate, to the best of my knowledge, information and belief, the Technical Report contains all scientific and technical information that is required to be disclosed to make this certificate not misleading.

DATED this 30^th day of October, 2019

Signed “John Lewis Sims”

John Lewis Sims