E3 Lithium Ltd. — Regulatory Filings 2021

Sep 17, 2021

CERTIFICATE OF AUTHOR

GORDON MACMILLAN CONSULTING HYDROGEOLOGIST

PO Box 1835 Cochrane Alberta, T4C 1B7 Telephone: 403-462-2007 Email: gmacmillan@fluid-domains.com

I, Gordon MacMillan , do hereby certify that:

1. I am currently engaged as a Hydrogeological Consultant.

2. I am a graduate of the University of Calgary with a Bachelor of Science in Applied and Environmental Geology (1998).

3. I am a Registered Professional Geologist through the Association of Professional Engineers and Geoscientists of Alberta, Membership Number 63537.

4. I have practiced as a professional in hydrogeology since 2000 and have 20 years of experience in mining, water supply, water injection, and the construction and calibration of numerical models of subsurface flow and solute migration. My experience includes work in the lithium industry focussed on evaluating aquifer continuity, potential pumping rates, and estimating the mass of lithium in the subsurface. I have performed three-dimensional numerical modelling of groundwater flow, solute transport and heat flow. I have been involved in multiple numerical modelling investigations of Alberta’s Keg River Formation and Leduc Formation reefs for the purposes of water production, wastewater injection, and solute migration. I have completed various investigations into the mass balance of local and regional groundwater flow systems. I have published multiple peer-reviewed papers on the design of water well networks. I have worked with multi-discipline teams to develop and model detailed models of large-scale solute migration. I have prepared resource estimations for mineral projects.

5. I have read the definition of “qualified person” set out in NI 43-101 (“NI 43-101”) and certify that by reason, I fulfill the requirements to be a “qualified person” for the purposes of NI 43-101.

6. I am responsible for the preparation of all sections except 13 and 26.4 of the report titled “NI 43-101 Technical Report LITHIUM RESOURCE ESTIMATE for the EXSHAW WEST PROPERTY SOUTH-CENTRAL ALBERTA, CANADA”

7. I visited the E3 Metals Corporation property on March 23, 2018.

8. 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 for disclosure and is not misleading.

9. I do not hold, nor do I expect to receive, any securities or any other interest in any corporate entity, private or public, with interests in the properties that are the subject of this report or in the properties themselves, nor do I have any business relationship with any such entity apart from a professional consulting relationship with the issuer, nor to the best of my knowledge do I have any interest in any securities of any corporate entity with adjacent properties to any of the subject properties.

10. I am independent of E3 Metals Corporation according to the criteria stated in Section 1.5 of NI 43¬101.

11. I have read NI 43-101 and Form NI 43-101F1, and the Technical Report has been prepared in compliance with that instrument and form.

12. I consent to the public filing of the technical report titled “NI 43-101 Inferred Lithium Resource Estimate for the EXSHAW WEST PROPERTY SOUTH-CENTRAL ALBERTA, CANADA” and dated September 17, 2021 (the “Technical Report”) by E3 Metals Corp. I also consent to any extracts from or a summary of the Technical Report in any type of disclosure document with any stock exchanges or other regulatory

authority and any publication by them, including electronic publication in the public company files on the websites accessible by the public, of the Technical Report of E3 Metals Corp.

Dated this 17th day September 2021.

==> picture [133 x 38] intentionally omitted <==

==> picture [109 x 85] intentionally omitted <==

Signature of Qualified Person Gordon MacMillan, P.Geol.

Print name of Qualified Person