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Source: https://www.northisle.ca/wp-content/uploads/2025/04/NorthIsle-NI-43-101-Technical-Report-and-PEA_-Rev-0-compressed.pdf
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North Island Project
NI 43-101 Technical Report and Preliminary Economic
Assessment
North Vancouver Island, British Columbia, Canada
Effective date: February 12, 2025
Prepared for:
NorthIsle Copper and Gold Inc.
1040 West Georgia Street – 14th Floor
Vancouver, BC, Canada V6E 4H1
Prepared by:
Ausenco Engineering Canada ULC.
1050 West Pender Street, Suite 1200
Vancouver, BC, Canada V6E 3S7
List of Qualified Persons:
Peter Mehrfert, P. Eng., Ausenco Engineering Canada ULC
Mohammad Ali Hooshiar Fard, P. Eng., Ausenco Engineering Canada ULC
Kelvin Antoniuk, P. Geo. Ausenco Sustainability ULC
Jonathan Cooper, P.Eng. Ausenco Sustainability ULC
Sue Bird, P. Eng., Moose Mountain Technical Services
Marc Schulte, P. Eng., Moose Mountain Technical Services
Stephan Theban, SME (RM), SLR Consulting (Canada) Ltd.
Rob Frizzell. P.Geo., SLR Consulting (Canada) Ltd
CERTIFICATE OF QUALIFIED PERSON
Peter Mehrfert, P.Eng.
I, Peter Mehrfert, P. Eng., certify that I am employed as a Process Engineer with Ausenco Engineering Canada, with an
office at 1050 W Pender St, Vancouver, BC V6E 3S7.
1. This certificate applies to the technical report titled, “North Island Project NI 43-101 Technical Report and Preliminary
Economic Assessment” that has an effective date of February 12, 2025, and report date of March 31, 2025 (the
“Technical Report”).
2. I graduated from the University of British Columbia in 1996 where I obtained a Bachelor of Applied Science in Mining
and Mineral Process Engineering.
3. I am a Professional Engineer, registered with Engineers and Geoscientists of British Columbia, member number 24527.
4. I have practiced my profession continuously for 30 years and have been involved in the design, evaluation, and
operation of mineral processing facilities during that time. Approximately half of my professional practice has been
the supervision and management of metallurgical test work related to feasibility and prefeasibility studies of projects
involving flotation technologies. Previous projects that I have worked on that have similar features to the North Island
Project are Berg, Mt Milligan, Copper Creek, Santo Tomas, and Spanish Mountain. Project financial models that I have
reviewed and contributed to the inputs include Berg, Copper Creek, Santo Tomas, and Panuco.
5. I have read the definition of “Qualified Person” set out in the National Instrument 43-101 Standards of Disclosure for
Mineral Projects (“NI 43-101”) and certify that by virtue of my education, affiliation to a professional association and
past relevant work experience, I fulfill the requirements to be a “Qualified Person” for those sections of the Technical
Report that I am responsible for preparing.
6. I have not visited the North Island Project.
7. I am responsible for Sections 1.1, 1.10, 1.13, 1.14.1-1.14.8, 1.14.10, 1.15, 1.17,1.18, 1.19, 2.1-2.3, 2.5-2.7, 3.1, 3.3, 3.4,
12.4, 13, 17, 18.1-18.3, 19, 21.1, 21.2.1, 21.2.2,21.2.4-21.2.10, 21.2.11.1,21.2.11.3, 21.2.12, 21.3.1, 21.3.2, 21.3.4,
21.3.5, 22, 23, 24, 25.1, 25.5, 25.8, 25.9, 25.10, 25.12-25.14, 25.15.1.1, 25.15.1.4.1, 25.15.1.5, 25.15.1.7, 25.15.2.2,
25.15.2.5.1, 26.1, 26.3,26.5, and 27 of the Technical Report.
8. I am independent of the Northisle Copper and Gold Inc. as independence is defined in Section 1.5 of NI 43-101.
9. I have had previous involvement with the North Island Project, through managing metallurgical testing on behalf of
Northisle Copper and Gold Inc.
10. I have read NI 43-101 and the sections of the Technical Report for which I am responsible have been prepared in
compliance with that Instrument. As of the effective date of the Technical Report, to the best of my knowledge,
information and belief, the sections of the Technical Report for which I am responsible contain all scientific and
technical information that is required to be disclosed to make those sections of the Technical Report not misleading.
Dated: March 31, 2025
“Signed and Sealed”
Peter Mehrfert, P. Eng.
Ausenco Engineering Canada ULC. Permit to Practice 1001905, Engineers and Geoscientists British Columbia
CERTIFICATE OF QUALIFIED PERSON
Mohammad Ali Hooshiar Fard, P.Eng.
I, Mohammad Ali Hooshiar Fard, P.Eng., certify that, I am employed as a Geotechnical Engineer with Ausenco Engineering
Canada ULC (Ausenco), with an office at 1050 W Pender St, Vancouver, BC V6E 3S7.
1. This certificate applies to the technical report titled, “North Island Project NI 43-101 Technical Report and Preliminary
Economic Assessment, “that has an effective date of February 12, 2025, and report date of March 31, 2025 (the
“Technical Report”).
2. I graduated from Sharif University of Technology with a BSc and an MSc in Materials Science and Engineering in 2003
and 2006, respectively. In 2011, I graduated from the University of Alberta with a PhD in Materials Engineering.
3. I am a Professional Engineer registered with the Engineers and Geoscientists British Columbia (No. 40965) and
Engineers Yukon (3343).
4. I have practiced my profession for 21 years. My relevant experience includes designing tailings and waste rock storage
facilities as well as managing geotechnical field investigation and lab testing programs for mining projects across the
globe. I have acted as the Qualified Person for similar projects, such as:
a. Berg Project Preliminary Economic Assessment
b. Marban Project Prefeasibility Study
c. Val-d'Or East Project Preliminary Economic Assesment
A summary of the more recent portion of my professional career is as follows:
a. Geotechnical Mining Engineer, Ausenco, Canada 2018–present
b. Geotechnical Mining Engineer, AECOM, Canada 2013–2017
c. Senior Geotechnical Consultant, SRK Consulting Inc., Canada 2011–2013
5. I have read the definition of “Qualified Person” set out in the National Instrument 43-101 Standards of Disclosure for
Mineral Projects (“NI 43-101”) and certify that by virtue of my education, affiliation to a professional association and
past relevant work experience, I fulfill the requirements to be a “Qualified Person” for those sections of the Technical
Report that I am responsible for preparing.
6. I visited the North Island Project on July 30, 2024, for the duration of 1 day.
7. I am responsible for 1.14.9, 2.4.1, 18.4, 25.15.1.4.3, 25.15.2.5.2, 26.6, and 27 of the Technical Report.
8. I am independent of the Company as independence is defined in Section 1.5 of NI 43-101.
9. I have had no previous involvement with the property that is the subject of this report.
10. I have read NI 43-101 and the sections of the Technical Report for which I am responsible have been prepared in
compliance with that Instrument. As of the effective date of the Technical Report, to the best of my knowledge,
information and belief, the sections of the Technical Report for which I am responsible contain all scientific and
technical information that is required to be disclosed to make those sections of the Technical Report not misleading.
Dated: March 31, 2025
“Signed and Sealed”
Mohammad Ali Hooshiar Fard, P.Eng.
Ausenco Engineering Canada ULC. Permit to Practice 1001905, Engineers and Geoscientists British Columbia
CERTIFICATE OF QUALIFIED PERSON
Kelvin Antoniuk, P.Geo.
I, Kelvin Antoniuk, P.Geo., certify that, I am employed as a Senior Contaminant Sites Specialist/Senior Contaminant
Hydrogeologist with Ausenco Engineering Canada ULC, (Ausenco), with an office address of Suite 1710, 407 2nd Street SW,
Calgary, AB T2P 3C5.
1. This certificate applies to the technical report titled, “North Island Project NI 43-101 Technical Report and Preliminary
Economic Assessment Effective date: February 12, 2025, and report date of March 31, 2025 (the “Technical Report”).
2. I graduated from University of Toronto with a B.Sc. in Geology in 1989.
3. I am a professional geoscientist registered with the Professional Geoscientists of Ontario (No. 0255), Engineers and
Geoscientists British Columbia (No. 62708) and Association of Professional Engineers and Geoscientists Alberta
(No.260343).
4. I have practiced my profession continuously for 34 years with experience in remediation and reclamation of several
mines and numerous pits and quarries. My experience has involved the development of closure plans and on-going
post closure reclamation and monitoring.
5. I have read the definition of “Qualified Person” set out in the National Instrument 43-101 Standards of Disclosure for
Mineral Projects (“NI 43-101”) and certify that by virtue of my education, affiliation to a professional association and
past relevant work experience, I fulfill the requirements to be a “Qualified Person” for those sections of the Technical
Report that I am responsible for preparing.
6. I have not visited the project site.
7. I am responsible for Sections 20.3, and 27 of the Technical Report.
8. I am independent of NorthIsle Copper and Gold Inc., as independence is defined in Section 1.5 of NI 43-101.
9. I have not been previously involved with the North Island Project.
10. I have read NI 43-101 and the sections of the Technical Report for which I am responsible have been prepared in
compliance with that Instrument. As of the effective date of the Technical Report, to the best of my knowledge,
information and belief, the sections of the Technical Report for which I am responsible contain all scientific and
technical information that is required to be disclosed to make those sections of the Technical Report not misleading.
Dated: March 31, 2025
“Signed and Sealed”
Kelvin Antoniuk, P.Geo.
Ausenco Sustainability ULC. Permit to Practice 1003471, Engineers and Geoscientists British Columbia
CERTIFICATE OF QUALIFIED PERSON
Jonathan Cooper, P.ENG.
I, Jonathan Cooper, P. Eng., certify that I am employed as a Water Resources Engineer with Ausenco Sustainability ULC
(“Ausenco”), with an office address of 11 King Street West, Suite 1500, Toronto, Ontario M5H 4C7.
1. This certificate applies to the technical report titled, “North Island Project NI 43-101 Technical Report and Preliminary
Economic Assessment, “ that has an effective date of February 12, 2025, and report date of March 31, 2025 (the
“Technical Report”.
2. I graduated from the University of Western Ontario with a Bachelor of Engineering Science in Civil Engineering in 2008,
and University of Edinburgh with a Master of Environmental Management in 2010.
3. I am a Professional Engineer registered and in good standing Professional Engineers Ontario (registration
#100191626), Engineers and Geoscientists British Columbia (registration #37864) and Northwest Territories and
Nunavut Association of Professional Engineers and Geoscientists (registration # L4227).
4. I have practiced my profession for continuously for over 15 years with experience in the development, design,
operation, and commissioning of surface water infrastructure. Previous projects that I have worked on that have
similar features to the North Island Project are the Kwanika-Stardust for NorthWest Copper located in British
Columbia, Colomac Gold Project located in the Northwest Territories and the Crawford Project located in Ontario.
5. I have read the definition of “Qualified Person” set out in the National Instrument 43-101 Standards of Disclosure for
Mineral Projects (“NI 43-101”) and certify that by virtue of my education, affiliation to a professional association and
past relevant work experience, I fulfil the requirements to be a “Qualified Person” for those sections of the Technical
Report that I am responsible for preparing.
6. I have not visited the North Island Project.
7. I am responsible for sections 18.5 and 27 of the Technical Report.
8. I am independent of Northisle Copper and Gold Inc. as independence is defined in Section 1.5 of NI 43-101.
9. I

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