Document

CERTIFICATE OF QUALIFIED PERSON

I, Nathan Eugene Gerard Bourgeault, M.Eng, P.Eng., PMP as an author of this report entitled “NI 43-101 Technical Report for the Island Gold Mine, Dubreuilville, Ontario, Canada” prepared for Alamos Gold Inc. and with an effective date of June 28, 2022, do hereby certify that:

1.I am a licensed Mining Engineer employed as Chief Engineer of the Island Gold Mine, located at Goudreau Road, Dubreuilville, Ontario;

2.I received a Bachelor of Engineering in Mining Engineering from Laurentian University (Ontario, Canada) in 2007 and a Master of Engineering with a specialization in Natural Resources Engineering from Laurentian University (Ontario, Canada) in 2014;

3.I am a registered member of the Professional Engineers of Ontario (PEO licence no 100149936). I have worked as an Engineer for more than 15 years since my graduation. I have worked mainly in project development and operations in the mining industry for different companies with increasing levels of responsibilities;

4.I have read the definition of “qualified person” set out in National Instrument 43-101 (“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;

5.I have worked at the Island Gold Mine for the last five years;

6.I am the author of Sections 16, 19, 21 and 22, Section 18 except for Sections 18.3.3.1 to 18.3.3.3, and co-author of Sections 1, 2, 3, 15 and 24 to 27 of the NI 43‑101 report entitled “NI 43-101 Technical Report for the Island Gold Mine, Dubreuilville, Ontario, Canada " with an effective date of June 28, 2022;

7.I have no personal knowledge, as of the date of this certificate, of any material fact or change, which is not reflected in this report;

8.I have been an employee of Alamos Gold Inc. since November 2017, first as Senior Production Engineer, Island Gold Mine and currently as Chief Engineer, Island Gold Mine;

9.I am not independent of the issuer, as described in Section 1.5 of NI 43-101;

10.I have prepared this Technical Report in compliance with National Instrument 43-101 and in conformity with generally accepted Canadian mining industry practices. 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 the Technical Report not misleading; and

11.I consent to the filing of the Technical Report with any stock exchange and other regulatory authority and any publication by them for regulatory purposes, including electronic publication in the public company files on their websites accessible by the public.

Dated this 29th day of August 2022

(Signed & Sealed) “Nathan Eugene Gerard Bourgeault”

(Original signed and sealed)

Nathan Eugene Gerard Bourgeault, P.Eng. (PEO no 100149936)