Northisle Copper (QX) (NTCPF)

NorthIsle Copper and Gold
Monday, Apr 13, 2026

https://europe.miningforum.com/member-webcast/4408/

Northisle Provides Corporate and Exploration Update and 2026 Execution Plan

2025 Successes Include Newly Identified Copper-Gold Mineralization at Cougar, Expansion of West Goodspeed and Initiation of PFS Targeted for Completion during 2026

Highlights:

In 2026, we are advancing the North Island Project towards PFS
Building on our largest ever field program completed at the North Island Project in 2025
Identified copper-gold mineralization at the Cougar target between the existing Northwest Expo and Red Dog deposits
4 drills turning in Q4, with 20,297 meters of exploration and infill drilling across 58 holes completed
Continue to extend mineralization at West Goodspeed over 1.2km strike
Advance district-scale exploration program to delineate the potential of the 50-kilometre North Island porphyry district
Continued positive engagement with First Nations partners, municipal, provincial, and federal governments, and local community stakeholders, underscores alignment towards the continued development of the North Island Project
Ongoing team expansion to support growth
Addition of Alex Davidson and Jill Donaldson to the Board of Directors
Appointment of Kevin O’Kane as Chief Operating Officer and the additions of Dr. Pablo Mejia Herrera as VP Exploration and Brian Ferrey as VP Corporate Development & Investor Relations

Vancouver, B.C. – Northisle Copper and Gold Inc. (TSX-V: NCX, OTCQX: NTCPF) (“Northisle” or the “Company”) is pleased to provide an update on its progress at the North Island Project during 2025 and to highlight the Company’s execution plan for 2026.

Sam Lee, President & CEO commented “2025 was a transformational year for Northisle. We demonstrated the robust economic and strategic merits of the North Island Project and are now advancing the project in a disciplined and responsible manner. In parallel, we are pursuing what we believe to be a significant copper-gold opportunity across our 40-kilometre, 100%-owned porphyry district, supported by a systematic, district-wide exploration program designed to expand resource grade, project scale, and long-term option-ability.

We continue to build a leading technical and operational team, strengthening our ability to execute our high-growth, value-creation strategy. Our progress is underpinned by strong, respectful partnerships with First Nations and ongoing engagement with Municipal, Provincial, and Federal governments, supporting responsible development, environmental stewardship, and a clear permitting pathway in a stable, low-risk jurisdiction.

The objectives we have established for 2026 and beyond are ambitious, achievable, and transformative, and are aligned with the growing demand for responsibly sourced copper – critical to electrification and decarbonization – and gold – a growing critical currency. We believe these qualities position Northisle to deliver meaningful shareholder value, resource growth, and district-scale upside in a premier copper-gold jurisdiction.”

As with prior years, the Company is providing a set of project milestones which set out its ambitious plans for the year.

Exploration and Development Milestones
Key project milestones for 2025 and 2026 include the following:

COMPLETED – Updated Preliminary Economic Assessment on North Island Project
COMPLETED – C$39.5 million financing
COMPLETED – BC Hydro Conceptual Review of Interconnection
COMPLETED – Team additions and enhancements to support growth
COMPLETED – Commencement of expanded baseline study program to support EA Readiness
COMPLETED – Largest ever field program at North Island Project with 20,297 metres and 58 holes drilled
COMPLETED – Confirmed mineralization at West Goodspeed over 1.2km strike
COMPLETED – Identified copper-gold mineralization at the Cougar Target, between the Northwest Expo and Red Dog deposits
COMPLETED – Infill drilling at Northwest Expo (pending assay results)
Q1 2026 – Assays from infill drilling at Northwest Expo
Q1 2026 – Infill drilling ongoing at Red Dog (pending assay results)
Q2 2026 – Initial Metallurgical test results for the North Island PFS
Q2 2026 – Assays from Red Dog infill drilling
Q2 2026 – Integrated resource update for the North Island Project
Q2 2026 – Commence extension drilling in Northwest Corridor
Q3 2026 – Target for initiation of early engagement on mine waste storage area
Q3 2026 – Initiate drilling at regional exploration targets
Q4 2026 – Results from drilling at regional exploration targets
Q4 2026 – North Island PFS results announced
H2 2026 – Commence BC Hydro System Impact Study
H2 2026 – Initial Project Description filed
Ongoing – Continued positive engagement with indigenous rightsholders and local stakeholders
Ongoing – Additional team additions to support further growth


North Island Project Development Update

In February 2025, Northisle completed a Preliminary Economic Assessment (the “2025 PEA”) for the Company’s 100% owned North Island Project (see news release “Northisle 2025 PEA Indicates 29% After-tax IRR and $2 Billion NPV for Staged Development of the North Island Project”, dated February 19, 2025). The 2025 PEA demonstrated robust economics with a $2.0 billion NPV (7%) and 29% IRR at base case prices and $3.8 billion NPV (7%) and 45% IRR at February 2025 prices.1 The phased development approach considered in the 2025 PEA indicated a payback period of less than 2 years, strong leverage to copper and gold prices, compelling capital intensity, and an attractive return profile.

The Company subsequently commenced a comprehensive, multidisciplinary program to support the completion of a Pre-Feasibility Study at the North Island Project (the “North Island PFS”), as well as advance the exploration thesis across the 50-kilometre North Island porphyry district.
CONTINUED:

https://mailchi.mp/northisle/press-release-northisle-provides-corporate-and-exploration-update-17456860?e=b717ef8365

Weekly Chart
https://schrts.co/AQDhRHie

Northisle Copper and Gold Report
Nov 17, 2025

Highlights:

Drilling at West Goodspeed continues to confirm broad zones of copper-gold porphyry mineralization with locally higher-grade intervals, extending the system both laterally and at depth.
The 2025 program confirms and continues to extend the mineralization outlined in previous drilling, improving understanding of the controls on copper-gold distribution.
Mineralization at West Goodspeed is now defined over a strike length of 1.2 kilometres and a vertical extent of 280 metres.
Selected copper-equivalent assay intercepts (Cu Eq. based on Cu, Au, Mo and Re assays) include:
RD25-07: 93.0 metres grading 0.77% Cu Eq. from 264.0 metres, including 39.0 metres grading 1.16% Cu Eq.
RD25-04: 38.0 metres grading 0.72% Cu Eq. from 104.0 metres, including 18.0 metres grading 1.13% Cu Eq.
The expanded 2025 drilling program continues to progress rapidly
14,130 metres now complete, including approx. 9,000 metres of exploration drilling
Total of up to 10,000 metres of infill, geotech and condemnation drilling remaining in 2025

Vancouver, B.C. – Northisle Copper and Gold Inc. (TSX-V: NCX, OTCQX: NTCPF) (“Northisle” or the “Company”) is pleased to announce additional drill results from its 2025 exploration campaign. Ten additional holes were drilled with the objective of expanding the West Goodspeed target. Results have further expanded the footprint of mineralization at West Goodspeed and provide additional confidence in the interpretation of the mineralized systems in the area while highlighting additional opportunities for future expansion. Drilling at the North Island Project continues to progress, focused on the infill and geotechnical assessment of the Northwest Expo and Red Dog deposits.

Sam Lee, President and CEO stated “Today’s results from West Goodspeed have further expanded the footprint of mineralization at the West Goodspeed target. Work has now commenced to bring West Goodspeed into the mineral inventory on the project, which will support our planned pre-feasibility study. Our exploration team is now focused on executing a comprehensive in-fill drilling program while advancing the exploration thesis for the overall property.”

Discussion of Drill Results

Drilling at West Goodspeed continues to outline a broad zone of copper-gold mineralization extending from near surface to depth across the central and northwestern portions of the system. The 2025 results confirm the extension and copper and gold grades observed in previously disclosed drilling, while also providing a better understanding of the lithological and structural controls that govern mineralization in this part of the North Island Project. The results further demonstrate strong grade continuity within mafic and intermediary igneous units and show that higher-grade domains persist along strike.

Hole GS25-28 returned 50 metres grading 0.53% Cu Eq. from 59 metres, including 10 metres grading 0.71% Cu Eq. and 10 metres grading 0.90% Cu Eq. at shallower depths, with an additional 14 metres grading 0.45% Cu Eq. at 121 metres. Adjacent hole GS25-29 intersected two mineralized zones: 9 metres grading 0.41% Cu Eq. from 54 metres and 33 metres grading 0.49% Cu Eq. from 66 metres. Both results confirm shallow copper-gold mineralization along the southern margin of the West Goodspeed trend, as previously identified in holes GS25-17 (see news release “Northisle Announces Near-Surface Intercepts and Higher-Grade Intercepts at Depth at West Goodspeed on its North Island Project” dated July 2, 2025) and GS25-26 (see news release “Northisle Reports Additional Results from 2025 Drilling at West Goodspeed at its North Island Project” dated September 8, 2025).

At depth, RD25-04 returned 38 metres grading 0.72% Cu Eq. from 104 metres, including 18 metres grading 1.13% Cu Eq. from 114 metres. Nearby, RD25-05 intersected 42 metres grading 0.60% Cu Eq. from 114 metres, including 15 metres grading 1.00% Cu Eq. from 141 metres, and a deeper interval of 15 metres grading 0.77% Cu Eq. from 300 metres. These holes confirm the presence of stacked mineralized zones within the system and extend mineralization to the northwest from holes GS25-23 and GS25-24B (see news release “Northisle Reports Additional Results from 2025 Drilling at West Goodspeed at its North Island Project” dated September 8, 2025).

Hole RD25-07 delivered one of the strongest results to date, with 93 metres grading 0.77% Cu Eq. from 264 metres, including 39 metres grading 1.16% Cu Eq. This interval ranks among the thickest and highest-grade copper-equivalent zones drilled so far at West Goodspeed and reinforces the interpretation of zones with higher-grade copper-gold within the mineralized trend. Nearby hole RD25-10 further confirms continuity in this corridor, returning 24 metres grading 0.46% Cu Eq. from 116 metres, 48 metres grading 0.48% Cu Eq. from 183 metres, and 12 metres grading 0.33% Cu Eq. from 246 metres. Results from RD25-11, including 21 metres grading 0.28% Cu Eq. from 132 metres and 69 metres grading 0.36% Cu Eq. from 243 metres, align with this trend and indicate that mineralization continues farther down-dip in this part of the system.

Peripheral holes RD25-06, RD25-08, and RD25-09 returned 20 metres grading 0.24% Cu Eq., 18 metres grading 0.20% Cu Eq., and 32 metres grading 0.26% Cu Eq., respectively, outlining the lower-grade zone in the upper levels of the mineralized system on the northwest sector.

These recent results, together with previously disclosed drilling, have significantly advanced the team’s understanding of the geological controls on mineralization at West Goodspeed. The distribution of copper-gold grades is now better constrained within key lithological units, providing clearer insight into the geometry of the mineralized system. In parallel, the identification of structural features associated with higher-grade domains is guiding follow-up drilling toward prospective extensions. Ongoing work is also refining the characterization of alteration mineral assemblages, which are proving useful for vectoring toward additional zones of porphyry-style mineralization in nearby areas.

To date, mineralization has been outlined over more than 1.2 kilometres of strike and to a vertical depth of approximately 280 metres below surface. A total of 20 drill holes has been completed in the West Goodspeed area during 2025, for a total of 6,653 metres, with all assay results now received.

Selected intervals from holes GS25-28 through RD25-11 are summarized in Table 1 below.


Table 1: West Goodspeed 2025 Significant Intercepts from This Release

Hole ID From (m) To (m) Interval (m) Cu Grade (%) Au Grade (g/t) Mo Grade (ppm) Re Grade (g/t) Cu Eq. Grade (%) Au Eq.
Grade (g/t)
GS25-28 59.0 109.0 50.0 0.25 0.34 55.34 0.29 0.53 0.72
Including 65.0 75.0 10.0 0.37 0.36 115.04 0.70 0.71 0.95
Also including 99.0 109.0 10.0 0.38 0.65 50.92 0.23 0.90 1.20
And 121.0 135.0 14.0 0.21 0.28 38.20 0.24 0.45 0.60
GS25-29 54.0 63.0 9.0 0.19 0.24 59.87 0.48 0.41 0.55
And 66.0 99.0 33.0 0.19 0.34 72.00 0.49 0.49 0.66
RD25-04 104.0 142.0 38.0 0.42 0.38 14.16 0.11 0.72 0.96
Including 114.0 132.0 18.0 0.63 0.67 6.12 0.05 1.13 1.52
RD25-05 114.0 156.0 42.0 0.30 0.26 153.52 1.05 0.60 0.80
Including 141.0 156.0 15.0 0.51 0.55 117.78 0.95 1.00 1.34
And 300.0 315.0 15.0 0.45 0.28 177.21 1.08 0.77 1.03
RD25-06 7.0 27.0 20.0 0.19 0.06 8.94 0.14 0.24 0.33
RD25-07 57.0 67.0 10.0 0.16 0.04 6.85 0.06 0.19 0.25
And 264.0 357.0 93.0 0.40 0.42 66.39 0.63 0.77 1.03
Including 270.0 309.0 39.0 0.57 0.71 87.50 0.78 1.16 1.56
And 360.0 381.0 21.0 0.13 0.03 59.07 0.39 0.19 0.26
RD25-08 12.0 30.0 18.0 0.17 0.04 8.43 0.08 0.20 0.27
RD25-09 15.0 47.0 32.0 0.21 0.06 17.22 0.13 0.26 0.35
RD25-10 116.0 140.0 24.0 0.32 0.18 8.82 0.10 0.46 0.61
And 183.0 231.0 48.0 0.31 0.05 166.36 2.09 0.48 0.64
And 246.0 258.0 12.0 0.21 0.12 40.23 0.50 0.33 0.45
RD25-11 132.0 153.0 21.0 0.21 0.07 26.00 0.20 0.28 0.38
And 243.0 312.0 69.0 0.21 0.09 138.89 1.13 0.36 0.49

Note on equivalent calculation for West Goodspeed:
Copper equivalent grade is determined by calculating total contained metal value per tonne, adjusted for recoveries, if known, dividing by the copper price, and then dividing the resultant number of pounds of copper by 2204.6. Gold equivalent grade is determined by calculating total contained metal value/tonne, adjusted for recoveries, if known, dividing by the gold price, and then multiplying the resultant number of troy ounces of gold by 31.103. Metal equivalent calculations are reported for illustrative purposes only and assumes 80% recoveries for the metals presented, based on comparable porphyry deposits, as metallurgical testing has not yet been completed on material from the West Goodspeed target.

Copper and gold equivalent calculations based on the following metal prices which were used in the Company’s 2025 Preliminary Economic Assessment for North Island: Cu = US$4.20/lb, Au = US$2,150/oz, Mo = US$21/lb, Re = US$1,950/kg. Intervals were selected based on continuous intercepts with a copper grade above 0.1% Cu or a gold grade above 0.1g/t Au. Totals may not add due to rounding.

Intervals are drill intersections and not necessarily true widths. True widths cannot be provided at this time due to the uncertainty in the geometry of the mineralization. Drill intersections have been selected and composites calculated independently by Northisle. The locations and distances highlighted on all maps in this news release are approximate.

Collar locations for the drill holes are detailed in Table 2. There are no material drilling, sampling, recovery, or other factors known that could materially affect the accuracy or reliability of the assay data.

Table 2: West Goodspeed 2025 Drill Hole Collar Locations from This Release

Hole ID Length (m) UTM East UTM North UTM Elevation Azimuth (deg) Dip
(deg)
GS25-28 173 573401 5617500 323 245 -44.3
GS25-29 117 573466 5617402 310 200 -47.1
RD25-04 366 573364 5617886 298 210 -58.8
RD25-05 399 573364 5617886 298 195 -45.3
RD25-06 399 573119 5618114 370 300 -44.5
RD25-07 447 573119 5618114 370 155 -54.2
RD25-08 402 573119 5618114 370 155 -84.8
RD25-09 351 573119 5618114 370 215 -60.7
RD25-10 312 573364 5617885 297 267 -57.5
RD25-11 441 573361 5618048 342 210 -64.8
Coordinates are reported in UTM Zone 9 North (WGS?84 datum, EPSG:32609), with units in metres




Figure 1: North Island Property Showing Location of Deposits and Prospects

Figure 2 shows the location of the drill holes announced in this press release in context with other drilling in the West Goodspeed area, while Figure 3 presents a cross-section highlighting results from this release together with previous 2025 intercepts, illustrating the key lithological units and structural features that host and control mineralization.
.
Figure 2: West Goodspeed Area Drilling Highlighting Results from this Release and Previously Released 2025 Holes


Figure 3: Section View Highlighting Results from This Release and Previously Released 2025 Holes


2025 Exploration and Development Milestones
Key 2025 milestones include the following:

COMPLETED - Updated Preliminary Economic Assessment on North Island Project
COMPLETED - 2025 Exploration Program Commenced
COMPLETED - Initial results from drilling program at West Goodspeed
COMPLETED - C$39.5 million financing
COMPLETED - Commencement of Phase V exploration program
COMPLETED - BC Hydro Conceptual Review of Interconnection
COMPLETED - COO hired and additional team enhancements to support growth
COMPLETED - Commencement of expanded baseline study program to support EA Readiness
COMPLETED – Final results from Phase IV drill program from West Goodspeed
Q4 2025 - Commence PFS-level metallurgical testing program
Q4 2025 – Completion of development of belt-wide plan for the North Island Project
Q4 2025 – Initiate BC Hydro System Impact Study
Q4 2025 – Complete field portion of Geotech site investigation
Q4 2025 - Award major engineering scopes for pre-feasibility study
Q2 2026 – Completion of metallurgical testing
Q2 2026 – Integrated resource update for the North Island Project
Q4 2026 – Target completion of pre-feasibility study on the North Island Project
Ongoing - Continued positive engagement with indigenous rightsholders and local stakeholders
Ongoing - Additional team additions to support further growth

Upcoming Investor Events
Northisle will be attending several external investor events including the following events:

November 19 - 21, 2025: Swiss Mining Institute, Zurich, Switzerland
January 21, 2026: 3rd Annual Canadian Critical Minerals Opportunity Forum (CCMOF), New York, NY
January 25 & 26, 2026: Vancouver Resource Investment Conference (VRIC), Vancouver, BC
January 26 – 29, 2026: AME RoundUp, Vancouver, BC
January 27 – 29, 2026: TD Cowen Annual Global Mining Conference, Toronto, ON
March 1 – 4, 2026: Prospectors & Developers Association of Canada (PDAC) Convention, Toronto, ON
April 13 – 15, 2026: Mining Forum Europe (MFE), Zurich, Switzerland
June 2 – 4, 2026: Mining Investment Event, Quebec City, QC

Additional Technical Details
Logging, Sampling and Assaying Procedures and QA/QC
The diamond drill core logging and sampling program was carried out under a rigorous quality assurance / quality control (QA/QC) program. Drill intersections in this release are typically HQ to 150 metres and NQ thereafter to the end of holes. After drilling, core was logged for geology, structure, and geotechnical characteristics utilizing MX Deposit —core logging software, then marked for sampling and photographed on site. The cores for analyses were marked for sampling based on geological intervals with individual samples of 3-metre length or less. Drill core was cut lengthwise in half with a core saw. Half-core was sent for assays reported in this news release.

A minimum of +7.1% assay standards or blanks and +3.9% core duplicates are included in the sample stream as a quality control measure and are reviewed after analyses are received. Standards and Pulps Blanks were obtained from CDN Resource Laboratories, Langley, British Columbia. Coarse Blanks were obtained from unmineralized course bagged limestone landscaping rock. Standards and blanks in 2025 drill results to date have been approved as acceptable. Duplicate samples sourced from both pulp and coarse rejects as well as quarter-core field duplicates add to the long-term estimates of precision for assay data on the project and precision for drill results reported is deemed to be within acceptable levels.

Samples were sent to the MSALABS in Langley, British Columbia, where the samples were dried, then crushed, split and a 250-gram (g) split was pulverized to 85% passing -200 mesh (-75 micrometres (µm)) size pulps. Clean crush material was passed through the crusher, and clean silica was pulverized between each sample. The pulps were analyzed for gold by fire assay fusion of 50 g of the 250 g split. Total gold content was determined by digesting the silver doré bead from the fusion and then analysing by AA (MSA Code FAS-121). All samples were also analyzed for multiple elements by taking a 0.25 g of the 250 g split which was heated in HNO3, HClO4 and HF to fuming and taken to dryness.

The residue was dissolved in HCl and then analyzed utilizing ICP-MS (MSA Code IMS-230). Any copper analysis exceeding 1% had the pulp re-analyzed using the “Ore grade” ICP-ES finish to constrain copper content up to 40% (MSA Code ICF-6Cu). Any sulphur analysis from this latter analysis with a value greater than 10% was reanalyzed utilizing a Leco sulfur analyzer. Iron and Tungsten accelerators are added to the sample and a stream of oxygen is passed over the sample in the induction furnace. As the sample is heated, sulfur dioxide released from the sample is measured by an IR detection system and the Total Sulphur content is determined. (MSA Code SPM-210). MSALABS (Langley) is an independent, international ISO/IEC 17025:2005 accredited laboratory.

Pulps and rejects of holes with significant assay intervals are stored at West Coast Mineral Storage. The remaining split core is indexed and stored at the Company’s logging and office facility in Port Hardy, BC.

Drill Results in this news release are length weighted averages.

Qualified Persons and Data Verification
Dr. Pablo Mejia Herrera, P.Geo., Vice President Exploration of Northisle and a Qualified Person as defined by National Instrument 43-101 – Standards of Disclosure for Mineral Projects, has reviewed and approved the scientific and technical information contained in this news release. Dr. Mejia Herrera has verified the underlying data, including through multiple visits to drill sites, oversight of sample preparation protocols, and review of the QA/QC procedures applied to analytical results received from MSALABS.

About Northisle
Northisle Copper and Gold Inc. is a Vancouver-based company whose mission is to become Canada’s leading sustainable mineral resource company for the future. Northisle, through its 100% owned subsidiary North Island Mining Corp., owns the North Island Project, which is one of the most promising copper and gold porphyry projects in Canada. The North Island Project is located near Port Hardy, British Columbia on a more than 34,000-hectare block of mineral titles 100% owned by Northisle on a belt stretching 50 kilometres northwest from the now closed Island Copper Mine operated by BHP Billiton. Since 2021, the Company has discovered two significant deposits, expanded resources, demonstrated the economic potential of the project, and is now focused on accelerating the advancement of this compelling project while exploring within this highly prospective land package.

For more information on Northisle please visit the Company’s website at www.northisle.ca.

On behalf of Northisle Copper and Gold Inc.

Nicholas Van Dyk, CFA
Chief Financial Officer
Tel: (604) 335-3590
Email: info@northisle.ca
www.northisle.ca

Cautionary Note Regarding Adjacent and Historical Property Disclosure
This news release contains information regarding adjacent and historical properties and deposits. Investors are cautioned that adjacent mineral deposits or systems, or past performance of historical mines, do not necessarily indicate and certainly do not prove the existence, nature or extent of mineral deposits on the North Island Project.

Cautionary Statements regarding Forward-Looking Information
Certain information in this news release constitutes forward-looking statements under applicable securities law. Any statements that are contained in this news release that are not statements of historical fact may be deemed to be forward-looking statements. Forward-looking statements are often identified by terms such as “may”, “should”, “anticipate”, “expect”, “intend” and similar expressions. Forward-looking statements in this news release include, but are not limited to: plans and expectations regarding the 2025 exploration program; plans and expectations regarding future project development; timing of key catalysts; planned activities, including further drilling, at the North Island Project; the Company’s anticipated exploration activities; and the Company’s plans for advancement of the North Island Project. Forward-looking statements necessarily involve known and unknown risks, including, without limitation, the Company’s ability to implement its business strategies; risks associated with mineral exploration and production; risks associated with general economic conditions; adverse industry events; stakeholder engagement; marketing and transportation costs; loss of markets; volatility of commodity prices; inability to access sufficient capital from internal and external sources, and/or inability to access sufficient capital on favourable terms; industry and government regulation; changes in legislation, income tax and regulatory matters; competition; currency and interest rate fluctuations; and other risks. Readers are cautioned that the foregoing list is not exhaustive.

Readers are further cautioned not to place undue reliance on forward-looking statements as there can be no assurance that the plans, intentions, or expectations upon which they are placed will occur. Such information, although considered reasonable by management at the time of preparation, may prove to be incorrect and actual results may differ materially from those anticipated. Forward-looking statements contained in this news release are expressly qualified by this cautionary statement.

The forward-looking statements contained in this news release represent the expectations of management of Northisle as of the date of this news release, and, accordingly, are subject to change after such date. Northisle does not undertake any obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as expressly required by applicable securities law.

https://mailchi.mp/northisle/press-release-northisle-reports-additional-results-from-2025-drilling-at-west-goodspeed-at-its-north-island-project-17455463?e=b717ef8365

2025 drilling will nearly quadruple from original plan and has been progressing rapidly
Original Phase IV program expanded from 7,000m to over 27,000m for 2025
11,915 metres now complete, including approx. 8,000 metres of exploration drilling
Total of up to 15,000 metres of infill, geotech and condemnation drilling remaining in 2025
Targeting up to four drill rigs by end of 2025
Exploration office footprint and staff more than doubled to support execution

Final Phase IV exploration results at West Goodspeed and NW Expo being assayed and released shortly
Comprehensive baseline studies on the North Island Project initiated in early Q4 2025
Field engineering commenced including geotechnical drilling and site investigation as well as PFS-level metallurgical testing targeted to commence in late Q4 2025
District scale exploration planning underway expected to be released by early Q1 2026

Vancouver, B.C. – Northisle Copper and Gold Inc. (TSX-V: NCX) (“Northisle” or the “Company”) is pleased to provide an update on its fall 2025 field program at the North Island Project. The program includes a comprehensive drilling, field exploration, environmental data collection and geotech site investigation program which will support the completion of a pre-feasibility study on the North Island Project by the end of 2026. The field exploration program will also advance the property-wide exploration thesis. The company has added more than 20,000 metres to the 2025 drilling program compared to the initial plans for the North Island Project, for a total target of 27,000 metres during 2025.

Sam Lee, President & CEO stated “Upon completion of our financing in August, our team has been hard at work to execute against our vision of unlocking the potential of our 35 km porphyry district as quickly as possible, starting with the North Island Project. We have now completed significant site upgrades, expanded our site team, and have commenced extensive field programs and project planning in support of that goal. We are continuing to work in earnest with our First Nations, Provincial, and Federal Governments to ensure the swift realization of this generational opportunity for all rights holders and stakeholders.”

Exploration and Development Milestones
Key project milestones include the following:

COMPLETED - Updated Preliminary Economic Assessment on North Island Project
COMPLETED - 2025 Exploration Program Commenced
COMPLETED - Initial results from drilling program at West Goodspeed
COMPLETED - C$39.5 million financing
COMPLETED - Commencement of Phase V exploration program
COMPLETED – BC Hydro Conceptual Review of Interconnection
COMPLETED - COO hired and additional team enhancements to support growth
COMPLETED - Commencement of expanded baseline study program to support EA Readiness
Q4 2025 – Final results from Phase IV drill program from West Goodspeed and NW Expo
Q4 2025 - Commence PFS-level metallurgical testing program
Q4 2025 – Completion of development of belt-wide plan for the North Island Project
Q4 2025 – Initiate BC Hydro System Impact Study
Q4 2025 – Complete field portion of Geotech site investigation
Q4 2025 – Award major engineering scopes for pre-feasibility study
Q2 2026 – Completion of metallurgical testing
Q2 2026 – Integrated resource update for the North Island Project
Q4 2026 – Target completion of pre-feasibility study on the North Island Project
Ongoing - Continued positive engagement with indigenous rightsholders and local stakeholders
Ongoing - Additional team additions to support further growth

Upcoming Investor Events

During 2025, the Company will continue to be active in investor outreach. Northisle will be attending several external investor events including the following events:

October 6-10, 2025: Gentile European Mining Tour, London, Paris, Zurich, Geneva, Frankfurt
November 19 – 21, 2025: Swiss Mining Institute, Zurich, Switzerland
January 25 – 26, 2026: Vancouver Resource Investment Conference, Vancouver, Canada
January 26 – 29, 2026: AME Roundup, Vancouver, Canada
January 27 – 20, 2026: TD Securities Mining Conference, Toronto, Canada

Drilling Program Update
As of September 30, 2025, the Company has completed 11,915 metres of drilling across 35 holes. At the West Goodspeed target and its northwestern extension toward the Red Dog area, 21 holes were completed, with results from 10 holes released in July[1] and September[2].

At the Cougar target, located approximately one kilometre east of the Northwest Expo open pit design footprint, three holes were completed and are pending assay results. In addition, two exploration holes, one at Northwest Expo and another at Goodspeed, were drilled to test extensions of nearby mineralized zones. A further nine infill holes were started at the Northwest Expo and Red Dog deposits to upgrade Inferred resources to the Indicated category as part of the ongoing pre-feasibility study (Figures 1 and 2).

At West Goodspeed, the 2025 drilling program was designed to confirm and expand upon the mineralization outlined in 2023 and 2024. Early results from the 2025 campaign, including thick and economically significant intervals intersected in holes GS25-17, GS25-18, and GS25-23, indicated continuity of mineralization and supported a focus on the northwestern portion of the target, where potential extensions toward the Red Dog area were evaluated. (Figure 2).

The northwest-trending extension was guided by structural observations from drill core and by the progressive thickening of mineralized intervals observed from southeast to northwest. The Company will outline the geometry and extent of the mineralized zone once the remaining assay results from the drilled holes are received. For additional context on the geological interpretations from the West Goodspeed area, readers are referred to the Company’s July and September 2025 drill result news releases, which provide detailed discussions based on the reported assay results.

At the Cougar target, located approximately one kilometre east of the Northwest Expo open pit design footprint, drilling was guided by a prominent magnetic anomaly coincident with an area of previously observed hydrothermal alteration and mineralization[3].

The objective of the program was to evaluate a potential connection between Cougar and the Northwest Expo mineralized system. Visual observations from the three completed holes confirmed the presence of copper sulfides and alteration assemblages consistent with those observed elsewhere along the mineralized belt, including Northwest Expo. The Company will provide a detailed interpretation of this target upon receipt of assay results from the three holes.

At Northwest Expo, one step-out hole was drilled outside the open pit design footprint, approximately 250 metres east of the main mineralized system, to test a magnetic anomaly interpreted as a potential extension of the deposit. The hole intersected zones of alteration and sulfide mineralization, and assay results are pending. In the Goodspeed area, one exploration hole tested a magnetic anomaly located near an area of outcropping copper mineralization; however, the hole did not return any significant mineralized intervals (Figure 2).

In preparation for the upcoming pre-feasibility study, drilling commenced at Red Dog, where 4 infill holes were completed with the objective of upgrading Inferred resources to the Indicated category. At Northwest Expo, 5 infill holes have been drilled to date for the same purpose. This drilling program is ongoing and forms a key part of the Company’s resource conversion strategy. All infill holes are pending assay results.

Figure 1. North Island Property Showing Deposits and Targets

Figure 2. Red Dog and West Goodspeed Areas with Drilling Executed in 2025


Regional Exploration Program
Stream Sediment Program – Phase I Results
The first phase of the district-wide stream sediment sampling program has been completed, with a total of 79 heavy mineral concentrate samples, 74 silt samples, and 9 moss mat samples collected. Results are currently being integrated into the Company’s generative exploration models to refine target definition across the 50-km porphyry belt.

Early indications confirm the effectiveness of this multi-media approach for detecting geochemical footprints of porphyry systems nearby.
Importantly, the results show strong consistency with expectations, highlighting high copper concentrations in proximity to the main deposits and known targets, while also pointing to new prospective areas to the east of the property. A second-phase stream sediment program is scheduled to begin in the coming weeks, focusing on tracing the sources of the strongest anomalies identified in Phase I beyond the established deposits and prospects (Figure 3).

Figure 3. Stream Sediments Results - Phase 1 (heavy mineral concentrates, silt and moss mat samples)

District-Scale 3D Geological Modeling
Significant progress has been made in the ongoing 3D modeling of the North Island porphyry belt. In collaboration with Mira Geoscience Ltd., an initial model of the Jurassic plutons has been constructed with the objective of delineating the spatial distribution of intrusive bodies associated with porphyry centers. This work forms the foundation of a belt-scale geoscientific framework to support future exploration targeting and regional discovery efforts.

The next step will focus on finalizing the structural interpretation, integrating regional mapping with both regional and local airborne magnetic surveys. This integration will refine the model by incorporating the most significant geological units at the belt scale, further strengthening its application for exploration and targeting.

Figure 4. 3D Model of the Jurassic Intrusions based on Geological and Geophysical Surveys

Environmental Baseline and Geotechnical Site Investigation Program Details
Northisle has contracted leading environmental consultants to carry out a multi-faceted, multi-year environmental baseline study at the Project, which builds on the environmental, socio-economic and archeological data Northisle has been collecting since 2021.

The first phase of baseline studies will be primarily led by Falkirk Environmental Consultants, SLR Consulting Limited, and Lorax Environmental Services. The 2025 environmental baseline program includes aquatics, terrestrial, hydrogeological, and geochemical data collection.

Environmental baseline studies include a comprehensive assessment of the environmental conditions in a specific area prior to the construction of a proposed project. They are designed to document the existing environmental conditions of the area, including air, water, soil, and biotic resources, and serve to establish a baseline that can be used to assess the potential impact of a proposed project. Environmental baseline studies are an essential part of the mine permitting processes and help to ensure that mining companies operate in a conscientious and sustainable manner.

Geotechnical studies have also been initiated in the area of the key project infrastructure, including field mapping, surface geophysics, test pits, diamond and sonic drilling and is planned for completion by the end of 2025.

[1] https://northisle.ca/news/northisle-announces-near-surface-intercepts-and-higher-grade-intercepts-at-depth-at-west-goodspeed-on-its-north-island-project/
[2] https://northisle.ca/news/northisle-reports-additional-results-from-2025-drilling-at-west-goodspeed-at-its-north-island-project/
[3] https://www.northisle.ca/news/northisle-commences-2025-drilling-and-field-program/


Additional Technical Details

Qualified Persons and Data Verification
Dr. Pablo Mejia Herrera, P.Geo., Vice President Exploration of Northisle, and a Qualified Person as defined by National Instrument 43-101 Standards of Disclosure for Mineral Projects, has reviewed and approved the scientific and technical disclosure contained in this news release.

About Northisle
Northisle Copper and Gold Inc. is a Vancouver-based company whose mission is to become Canada’s leading sustainable mineral resource company for the future. Northisle, through its 100% owned subsidiary North Island Mining Corp., owns the North Island Project, which is one of the most promising copper and gold porphyry projects in Canada.

The North Island Project is located near Port Hardy, British Columbia on a more than 34,000-hectare block of mineral titles 100% owned by Northisle on a belt stretching 50 kilometres northwest from the now closed Island Copper Mine operated by BHP Billiton. Since 2021, the Company has discovered two significant deposits, expanded resources, demonstrated the economic potential of the project, and is now focused on accelerating the advancement of this compelling project while exploring within this highly prospective land package.

For more information on Northisle please visit the Company’s website at www.northisle.ca.

On behalf of Northisle Copper and Gold Inc.

Nicholas Van Dyk, CFA
Chief Financial Officer
Tel: (604) 335-3590
Email: info@northisle.ca
www.northisle.ca

Cautionary Note Regarding Adjacent and Historical Property Disclosure
This news release contains information regarding adjacent and historical properties and deposits. Investors are cautioned that adjacent mineral deposits or systems, or past performance of historical mines, do not necessarily indicate and certainly do not prove the existence, nature or extent of mineral deposits on the North Island Project.

Cautionary Statements regarding Forward-Looking Information
Certain information in this news release constitutes forward-looking statements under applicable securities law. Any statements that are contained in this news release that are not statements of historical fact may be deemed to be forward-looking statements. Forward-looking statements are often identified by terms such as “may”, “should”, “anticipate”, “expect”, “intend” and similar expressions. Forward-looking statements in this news release include, but are not limited to: plans and expectations regarding the 2025 exploration program; plans and expectations regarding future project development; timing of key catalysts; planned activities, including further drilling, at the North Island Project; the Company’s anticipated exploration activities; and the Company’s plans for advancement of the North Island Project. Forward-looking statements necessarily involve known and unknown risks, including, without limitation, the Company’s ability to implement its business strategies; risks associated with mineral exploration and production; risks associated with general economic conditions; adverse industry events; stakeholder engagement; marketing and transportation costs; loss of markets; volatility of commodity prices; inability to access sufficient capital from internal and external sources, and/or inability to access sufficient capital on favourable terms; industry and government regulation; changes in legislation, income tax and regulatory matters; competition; currency and interest rate fluctuations; and other risks. Readers are cautioned that the foregoing list is not exhaustive.

Readers are further cautioned not to place undue reliance on forward-looking statements as there can be no assurance that the plans, intentions, or expectations upon which they are placed will occur. Such information, although considered reasonable by management at the time of preparation, may prove to be incorrect and actual results may differ materially from those anticipated. Forward-looking statements contained in this news release are expressly qualified by this cautionary statement.

The forward-looking statements contained in this news release represent the expectations of management of Northisle as of the date of this news release, and, accordingly, are subject to change after such date. Northisle does not undertake any obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as expressly required by applicable securities law.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release.

Copyright © 2023 NORTHISLE COPPER & GOLD INC. All rights reserved.

Our mailing address is:
1200 - 1166 Alberni Street, Vancouver, BC, V6E 3Z3

https://mailchi.mp/northisle/press-release-northisle-provides-update-on-largest-ever-field-program-at-north-island-17454396?e=b717ef8365

The chart looks good for this little known stock.

https://schrts.co/BWTvfagH

Northisle Reports Additional Results from 2025 Drilling at West Goodspeed at its North Island Project
Business Wire
Mon, September 8, 2025 at 6:56 AM EDT

Figure 1: North Island Property Showing Location of Deposits and Prospects
Figure 1: North Island Property Showing Location of Deposits and Prospects
Figure 2: West Goodspeed Area Drilling Highlighting Results on this Release
Figure 2: West Goodspeed Area Drilling Highlighting Results on this Release
Figure 3: Section View of West Goodspeed with Results from GS25-23 and GS25-24B
Figure 3: Section View of West Goodspeed with Results from GS25-23 and GS25-24B
Figure 4: Section View of West Goodspeed with Results from GS25-21
Figure 4: Section View of West Goodspeed with Results from GS25-21

High grade interval in GS25-23 of 35m grading 0.97% Cu Eq. within 195.5m grading 0.42% Cu Eq.

Highlights:

Recent drilling at West Goodspeed continues to confirm the presence of broad zones of copper-gold porphyry mineralization with locally higher-grade intervals, further supporting the potential for both near-surface and deeper higher-grade zones.

Selected copper equivalent assay intercepts (based on Cu, Au, Mo and Re assays) include:

GS25-22: 18.0m grading 0.81% Cu Eq. from 21.0m within 30.0m grading 0.67% Cu Eq. from 13.0m, plus 14.0m grading 0.72% Cu Eq. from 61.0m within 30.0m grading 0.50% Cu Eq. from 53.0m

GS25-23: 35.0m grading 0.97% Cu Eq. from 224.5m within 195.5m grading 0.42% Cu Eq. from 64.0m

Phase V drilling at the North Island Project commenced in August 2025 and is anticipated to include continued step-out drilling at West Goodspeed, extensive in-fill drilling and testing of regional targets across the property

As of September 3, 2025, Northisle has completed a total of 10,046 metres of drilling: 6,903 metres in the West Goodspeed and Red Dog area, 2,132 metres across the Cougar, Goodspeed, and Northwest Expo targets, and 1,012 metres within the Red Dog open-pit footprint

VANCOUVER, British Columbia, September 08, 2025--(BUSINESS WIRE)--Northisle Copper and Gold Inc. (TSX-V: NCX, OTCQX: NTCPF) ("Northisle" or the "Company") is pleased to announce additional results from its 2025 exploration campaign, comprised of six additional holes from the West Goodspeed target. These results continue to demonstrate wide intervals of mineralization near surface and contribute additional high-grade intervals at depth. Additional drilling during 2025 has been completed, testing areas to the northwest of West Goodspeed, and at other targets on the property.

Sam Lee, President and CEO stated, "We continue to be encouraged by the results to date from West Goodspeed. These results continue to demonstrate continuity of good grades and provided us the confidence to step out further to the northwest at West Goodspeed. We have confirmed mineralization over a corridor spanning more than 1,000m in strike length with only 50% of results received from exploration drilling in the West Goodspeed-Red Dog mineralized corridor."

Discussion of Drill Results

Recent drilling at the West Goodspeed target continues to confirm the presence of a broad copper-gold porphyry system, with mineralization extending from near surface to depths exceeding 250 metres and over a strike length of at least 1,000 metres. The latest results highlight the potential for both shallow and deeper higher-grade zones, consistent with the current geological interpretation and previous drilling completed in 2024 (see Figures 2–4).

Of particular interest, hole GS25-23 intersected a broad zone of copper-gold mineralization, returning 195.5 metres grading 0.42% Cu Eq. from 64.0 metres depth, including a higher-grade interval of 35.0 metres grading 0.97% Cu Eq. from 224.5 metres. From the same drill pad but towards the northwest, hole GS25-24B returned 121.0 metres grading 0.28% Cu Eq. from 75.0 metres, including 27.0 metres grading 0.42% Cu Eq. from 147.0 metres.

These results are consistent with earlier intercepts in hole GS24-10 (see news release "Northisle Announces Additional Assays at West Goodspeed Confirm Near-Surface Copper-Gold Porphyry-style Mineralization Within Open Volume" dated August 19, 2024) and more recent results from GS25-17 and GS25-18 (see news release "Northisle Announces Near Surface Intercepts and Higher-Grade Intercepts at Depth at West Goodspeed on its North Island Project" dated July 2, 2025), collectively defining a robust mineralized corridor in this part of the target. The continuity in both grade and thickness supports the interpretation of this zone as one of the most prospective areas at West Goodspeed.

Hole GS25-22 returned multiple mineralized intervals that demonstrate both vertical and lateral continuity in the southeastern portion of the target. Near surface, the hole intersected 30.0 metres grading 0.67% Cu Eq. from 13.0 metres, including 18.0 metres grading 0.81% Cu Eq. from 21.0 metres. A second interval deeper in the hole returned 30.0 metres grading 0.50% Cu Eq. from 53.0 metres, including 14.0 metres grading 0.72% Cu Eq. from 61.0 metres. These results further confirm the continuity of shallow mineralization initially outlined by GS24-07 (also described in August 19, 2024, press release).

Hole GS25-21 also returned multiple intervals, including 28.0 metres grading 0.24% Cu Eq. from 80.0 metres, 18.0 metres grading 0.25% Cu Eq. from 144.0 metres, and a deeper interval of 51.0 metres grading 0.36% Cu Eq. from 237.0 metres. These results extend the mineralized system down-dip in this area, building on results from the initial discovery holes GS23-04 and GS23-05 reported in late 2023 (see news release "Northisle Makes New Discovery of Near Surface Copper-Gold Porphyry with multiple intercepts at West Goodspeed" dated December 6, 2023). In a similar manner, hole GS25-26 confirms the shallow mineralization zone outlined by GS23-04 and GS23-05, intersecting 104.0 metres grading 0.37% Cu Eq. from 61.0 metres, including a higher-grade interval of 20.0 metres grading 0.51% Cu Eq. from 91.0 metres. Jointly, GS25-21 and GS25-26, together with GS23-04 and GS23-05, define a mineralized area extending over 350 metres down-dip, which remains open in both down-dip and up-dip directions (see Figures 2–4).

Hole GS25-24B intersected 121.0 metres grading 0.28% Cu Eq., including 27.0 metres at 0.42% Cu Eq., confirming the extension down-dip of the upper part of the mineralization relative to GS25-23. Meanwhile, GS25-25 extends the deeper high-grade mineralization reported in GS25-18 (also highlighted in the company’s news release dated July 2, 2025) by approximately 100 metres to the southeast, returning 18.0 metres grading 0.89% Cu Eq. from 309.0 metres, within a broader interval of 75.0 metres grading 0.43% Cu Eq. from 276.0 metres. Collectively, holes GS25-18, GS25-23 and GS25-25 outline a higher-grade mineralized zone adjacent to the lower bounding fault, extending for approximately 220 metres in strike length and remaining open to the northwest (see Figures 2 and 4).

Together, these latest holes confirm the presence of a coherent mineralized system with both bulk-tonnage potential and discrete higher-grade domains. Ongoing interpretation will continue to refine the geometry and continuity of these higher-grade zones, with particular emphasis on the northwest portion of the target area.

To date, mineralization has been outlined over a strike length of more than 1km and extending about 250 metres down-dip from near surface. A total of 12 holes have been completed in the West Goodspeed area during 2025, with assays received for ten of them. An additional eight holes have been drilled along the projected mineralized trend toward the Red Dog area, northeast of the open-pit design, with assays pending.

Selected intervals from holes GS25-21 through GS25-26 are summarized in Table 1 below. Note that GS25-24A is not reported as it was terminated early due to unfavourable near-surface ground conditions. GS25-24B was collared from the same pad and progressed to the target depth.

Table 1: West Goodspeed 2025 Significant Intercepts

Note on equivalent calculation for West Goodspeed:

Copper equivalent grade is determined by calculating total contained metal value per tonne, adjusted for recoveries, if known, dividing by the copper price, and then dividing the resultant number of pounds of copper by 2204.6. Gold equivalent grade is determined by calculating total contained metal value/tonne, adjusted for recoveries, if known, dividing by the gold price, and then multiplying the resultant number of troy ounces of gold by 31.103. Metal equivalent calculations are reported for illustrative purposes only and assumes 80% recoveries for the metals presented, based on comparable porphyry deposits, as metallurgical testing has not yet been completed on material from the West Goodspeed target.

Copper and gold equivalent calculations based on the following metal prices which were used in the Company’s 2025 Preliminary Economic Assessment for North Island: Cu = US$4.20/lb, Au = US$2,150/oz, Mo = US$21/lb, Re = US$1,950/kg. Intervals were selected based on continuous intercepts with a copper grade above 0.1% Cu or a gold grade above 0.1g/t Au. Totals may not add due to rounding.

Intervals are drill intersections and not necessarily true widths. True widths cannot be provided at this time due to the uncertainty in the geometry of the mineralization. Drill intersections have been selected and composites calculated independently by Northisle. The locations and distances highlighted on all maps in this news release are approximate.

Collar locations for the drill holes are detailed in Table 2. There are no material drilling, sampling, recovery, or other factors known that could materially affect the accuracy or reliability of the assay data.

Table 2: West Goodspeed 2025 Drill Hole Collar Locations


Coordinates are reported in UTM Zone 9 North (WGS 84 datum, EPSG:32609), with units in metres

Figure 1 shows a map of the overall North Island Project including existing deposits, key prospects and the focus area of this release.

Figure 2 shows the location of the drill holes announced in this press release in context with other drilling in the West Goodspeed area, while Figure 3 and Figure 4 show the drilling on a cross-section section highlighting results from GS25-21, GS25-23, GS25-24B, GS25-25, GS25-26 and surrounding holes.

Exploration at North Island Continues to Accelerate

The drill results described above are part of the Company’s broader 2025 exploration program which builds on the successful 2025 Preliminary Economic Assessment on the North Island Project which demonstrated an after-tax 29% IRR, $2 billion NPV and 1.9-year payback for a C$1.1 billion capex1. The 2025 program includes:

Expansion drilling at West Goodspeed and Red Dog area

Advanced geophysical interpretation and soil geochemistry across the Northwest Corridor

Regional stream sediment surveys and regional geophysical integration to define new potential areas of interest aiming to discover new porphyry mineralization centers over the full belt

As of September 3, 2025, Northisle has completed a total of 10,046 metres of drilling: 6,903 metres in the West Goodspeed and Red Dog area, 2,132 metres across the Cougar, Goodspeed, and Northwest Expo targets, and 1,012 metres within the Red Dog open-pit design sector.

After a short pause, in early August the Company commenced the fifth phase of drilling on the North Island Project. This program is anticipated to include continued step-out drilling at West Goodspeed, testing of additional targets on the property identified through the regional grassroots program, and extensive infill drilling at Northwest Expo, Red Dog, Hushamu and West Goodspeed with the goal of improving resource definition throughout the property.

Key 2025 milestones include the following:

COMPLETED - Updated Preliminary Economic Assessment on North Island Project

COMPLETED - 2025 Exploration Program Commenced

COMPLETED - Initial results from drilling program at West Goodspeed

COMPLETED - C$39.5 million financing

COMPLETED - Commencement of Phase V exploration program

COMPLETED - COO hired and additional team enhancements to support growth

Q3 2025 - Results of belt-wide geophysical and geochemical data integration for the North Island Project

Q3 2025 - Commencement of expanded baseline study program to support EA Readiness

Q3 2025 - Initial results from Northwest Expo Area drilling aimed at discovering extensions of the high-grade gold mineralization at the Northwest Expo deposit

Q4 2025 - Commence PFS-level metallurgical testing program

Q4 2025 - Commence district-scale drilling program

Ongoing - Continued positive engagement with indigenous rightsholders and local stakeholders

Ongoing - Additional team additions to support further growth

Upcoming Investor Events

Northisle will be attending several external investor events including the following events:

Fall 2025: Broker and Investor Site Visits

September 9 - 12, 2025: Precious Metals Summit, Beaver Creek, CO

September 14 - 17, 2025: Mining Forum Americas, Colorado Springs, CO

October 6 - 10, 2025: Gentile European Tour in London, Paris, Zurich, Geneva, Frankfurt

November 4 – 5, 20205: Red Cloud Fall Mining Showcase, Toronto, Canada

November 19 - 21, 2025: Swiss Mining Institute, Zurich, Switzerland

Additional Technical Details

Logging, Sampling and Assaying Procedures and QA/QC

The diamond drill core logging and sampling program was carried out under a rigorous quality assurance / quality control (QA/QC) program. Drill intersections in this release are typically HQ to 150 metres and NQ thereafter to the end of holes. After drilling, core was logged for geology, structure, and geotechnical characteristics utilizing MX Deposit —core logging software, then marked for sampling and photographed on site. The cores for analyses were marked for sampling based on geological intervals with individual samples of 3-metre length or less. Drill core was cut lengthwise in half with a core saw. Half-core was sent for assays reported in this news release.

A total of +7% assay standards or blanks and +3% core duplicates are included in the sample stream as a quality control measure and are reviewed after analyses are received. Standards and Blanks were obtained from CDN Resource Laboratories, Langley, British Columbia. Blanks were obtained from unmineralized course bagged limestone landscaping rock. Standards and blanks in 2025 drill results to date have been approved as acceptable. Duplicate data add to the long-term estimates of precision for assay data on the project and precision for drill results reported is deemed to be within acceptable levels.

Samples were sent to the MSALABS in Langley, British Columbia, where the samples were dried, then crushed, split and a 250-gram (g) split was pulverized to 85% passing -200 mesh (-75 micrometres (µm)) size pulps. Clean crush material was passed through the crusher, and clean silica was pulverized between each sample. The pulps were analyzed for gold by fire assay fusion of 50 g of the 250 g split. Total gold content was determined by digesting the silver doré bead from the fusion and then analysing by AA (MSA Code FAS-121). All samples were also analyzed for multiple elements by taking a 0.25 g of the 250 g split which was heated in HNO3, HClO4 and HF to fuming and taken to dryness. The residue was dissolved in HCl and then analyzed utilizing ICP-MS (MSA Code IMS-230). Any sulphur analysis from this latter analysis with a value greater than 10% was reanalyzed utilizing a Leco sulfur analyzer. Iron and Tungsten accelerators are added to the sample and a stream of oxygen is passed over the sample in the induction furnace. As the sample is heated, sulfur dioxide released from the sample is measured by an IR detection system and the Total Sulphur content is determined. (MSA Code SPM-210). MSALABS (Langley) is an independent, international ISO/IEC 17025:2005 accredited laboratory.

Pulps and rejects of holes with significant assay intervals are stored at Western Mineral Storage. The remaining split core is indexed and stored at the Company’s logging and office facility in Port Hardy, BC.

Drill Results in this news release are length weighted averages.

Qualified Persons and Data Verification

Dr. Pablo Mejia Herrera, P.Geo., Vice President Exploration of Northisle and a Qualified Person as defined by National Instrument 43-101 – Standards of Disclosure for Mineral Projects, has reviewed and approved the scientific and technical information contained in this news release. Dr. Mejia Herrera has verified the underlying data, including through multiple visits to drill sites, oversight of sample preparation protocols, and review of the QA/QC procedures applied to analytical results received from MSALABS.

About Northisle

Northisle Copper and Gold Inc. is a Vancouver-based company whose mission is to become Canada’s leading sustainable mineral resource company for the future. Northisle, through its 100% owned subsidiary North Island Mining Corp., owns the North Island Project, which is one of the most promising copper and gold porphyry projects in Canada. The North Island Project is located near Port Hardy, British Columbia on a more than 34,000-hectare block of mineral titles 100% owned by Northisle on a belt stretching 50 kilometres northwest from the now closed Island Copper Mine operated by BHP Billiton. Since 2021, the Company has discovered two significant deposits, expanded resources, demonstrated the economic potential of the project, and is now focused on accelerating the advancement of this compelling project while exploring within this highly prospective land package.

For more information on Northisle please visit the Company’s website at www.northisle.ca.

Cautionary Note Regarding Adjacent and Historical Property Disclosure

This news release contains information regarding adjacent and historical properties and deposits. Investors are cautioned that adjacent mineral deposits or systems, or past performance of historical mines, do not necessarily indicate and certainly do not prove the existence, nature or extent of mineral deposits on the North Island Project.

Cautionary Statements regarding Forward-Looking Information

Certain information in this news release constitutes forward-looking statements under applicable securities law. Any statements that are contained in this news release that are not statements of historical fact may be deemed to be forward-looking statements. Forward-looking statements are often identified by terms such as "may", "should", "anticipate", "expect", "intend" and similar expressions. Forward-looking statements in this news release include, but are not limited to: plans and expectations regarding the 2025 exploration and development program, including the occurrence and expected timing of key milestones; plans and expectations regarding future project development; timing of key catalysts; planned activities, including further drilling, at the North Island Project; the Company’s anticipated exploration activities; and the Company’s plans for advancement of the North Island Project. Forward-looking statements necessarily involve known and unknown risks, including, without limitation, the Company’s ability to implement its business strategies; risks associated with mineral exploration and production; risks associated with general economic conditions; adverse industry events; stakeholder engagement; marketing and transportation costs; loss of markets; volatility of commodity prices; inability to access sufficient capital from internal and external sources, and/or inability to access sufficient capital on favourable terms; industry and government regulation; changes in legislation, income tax and regulatory matters; competition; currency and interest rate fluctuations; and other risks. Readers are cautioned that the foregoing list is not exhaustive.

https://finance.yahoo.com/news/northisle-reports-additional-results-2025-105600096.html

Northisle Copper and Gold completes brokered and non-brokered private placements
The proceeds from the CFT Shares will finance eligible Canadian exploration expenses at the North Island Project. Credit: Andrew Angelov/Shutterstock.com. · Mining Technology · Andrew Angelov/Shutterstock.com.
GlobalData
August 11, 2025

Northisle Copper and Gold has successfully closed its brokered and non-brokered private placements, securing a total of C$39.5m ($28.7m) in gross proceeds.

The financing includes a significant investment from Wheaton Precious Metals, marking a robust phase of capital inflow for the mining company.

The brokered offering generated approximately C$34.5m, comprising around 9.33 million common shares (flow-through or CFT Shares) at C$1.6065 each and nearly 18.57 million common shares (Non-CFT Shares) at C$1.05 each.

This includes an over-allotment option, resulting in an additional 4.28 million shares.

Paradigm Capital led the syndicate of agents, which also included First Nations Financial Markets, Red Cloud Securities, Ventum Financial and Raymond James.

The agents received a commission of approximately C$1.87m, calculated as 6% of the gross proceeds, except for a reduced 2% commission on subscriptions from a president's list provided by Northisle.

The brokered shares, offered to Canadian residents excluding Quebec, are not subject to a statutory hold period, except for the TSX Venture Exchange's four-month rule.

Some shares were also issued in the US under exemptions from the US Securities Act's registration requirements.

The non-brokered offering, comprising around 4.76 million common shares at C$1.05 each, raised approximately C$5m.

These shares are subject to a four-month-plus-one-day hold period under Canadian securities laws.

The proceeds from the CFT Shares will finance eligible Canadian exploration expenses at the North Island Project.

The funds from the Non-FT Shares and the non-brokered offering will support exploration, project development and general corporate activities.

In relation to the non-brokered offering, Wheaton Precious Metals has entered into an agreement with Northisle, providing Wheaton with a right of first refusal on precious metal streams or royalties on selected claims from the North Island Project.

This includes a 1km area of interest surrounding these claims, in exchange for C$10,000.

"Northisle Copper and Gold completes brokered and non-brokered private placements" was originally created and published by Mining Technology, a GlobalData owned brand.


The information on this site has been included in good faith for general informational purposes only. It is not intended to amount to advice on which you should rely, and we give no representation, warranty or guarantee, whether express or implied as to its accuracy or completeness. You must obtain professional or specialist advice before taking, or refraining from, any action on the basis of the content on our site.

https://finance.yahoo.com/news/northisle-copper-gold-completes-brokered-113726721.html

Northisle Copper & Gold Inc. (OTCQX: NTCPF | TSXV: NCX): Virtual Investor Conferences



Weekly Chart

NorthIsle Copper and Gold Inc., a junior resources company, engages in the exploration, development, and acquisition of mineral properties in Canada. The company explores for copper, gold, molybdenum, rhenium, and other metals. Its principal property is the North Island project covering an area of approximately 34,000 hectares located on Northern Vancouver Island, British Columbia. The company was incorporated in 2011 and is based in Vancouver, Canada.

There are approximately 270 M shares and the company is located at:

1040 West Georgia Street
Suite1400
Vancouver, BC V6E 3Z3
Canada
604-638-2515
https://www.northisle.ca