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Novamera Provides Northstar Positive Cam Copper Mine Surgical Mining(TM) Evaluation - Letter of Intent in Progress

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Northstar Gold Corp. (CSE: NSG) has received positive results from Novamera Inc.'s Surgical Mining™ evaluation study for the Cam Copper Mine Zone 2 Project. The study is based on recently announced Zone 2 Exploration Target models indicating 75,000 to 140,000 tonnes grading between 9% and 18% copper, with a conceptual average grade of 12% copper.

The companies are progressing with a Letter of Intent (LOI) that will establish terms for 3rd party financing, exploration, development, and high-grade copper production using Novamera's Surgical Mining™ technology. This innovative mining method is designed for steeply dipping narrow vein deposits, offering lower capital expenditure and faster production timeline while reducing environmental impact.

The Zone 2 mineralization remains open at depth, extending from surface to approximately 200 metres depth, with a 125-metre strike length and averaging 1 metre in width.

Northstar Gold Corp. (CSE: NSG) ha ottenuto risultati positivi dallo studio di valutazione Surgical Mining™ condotto da Novamera Inc. per il progetto Cam Copper Mine Zona 2. Lo studio si basa sui recenti modelli di Target di Esplorazione per la Zona 2 che indicano da 75.000 a 140.000 tonnellate con una gradazione compresa tra il 9% e il 18% di rame, con una gradazione media concettuale del 12% di rame.

Le aziende stanno avanzando con una Lettera di Intenti (LOI) che definirà i termini per il finanziamento da parte di terzi, l'esplorazione, lo sviluppo e la produzione di rame ad alto tenore utilizzando la tecnologia Surgical Mining™ di Novamera. Questo metodo minerario innovativo è progettato per giacimenti a vene strette con forte inclinazione, offrendo minori spese in conto capitale e tempi di produzione più rapidi riducendo al contempo l’impatto ambientale.

La mineralizzazione della Zona 2 rimane aperta in profondità, estendendosi dalla superficie fino a circa 200 metri di profondità, con una lunghezza di 125 metri e una larghezza media di 1 metro.

Northstar Gold Corp. (CSE: NSG) ha recibido resultados positivos del estudio de evaluación Surgical Mining™ de Novamera Inc. para el proyecto Cam Copper Mine Zona 2. El estudio se basa en los recientemente anunciados modelos de Objetivo de Exploración para la Zona 2 que indican entre 75,000 y 140,000 toneladas con una ley entre 9% y 18% de cobre, con un grado promedio conceptual del 12% de cobre.

Las compañías están avanzando con una Carta de Intención (LOI) que establecerá los términos para financiamiento de terceros, exploración, desarrollo y producción de cobre de alta ley utilizando la tecnología Surgical Mining™ de Novamera. Este método minero innovador está diseñado para depósitos de vetas estrechas con fuerte inclinación, ofreciendo menores gastos de capital y un tiempo de producción más rápido mientras reduce el impacto ambiental.

La mineralización de la Zona 2 permanece abierta en profundidad, extendiéndose desde la superficie hasta aproximadamente 200 metros de profundidad, con una longitud de 125 metros y un ancho promedio de 1 metro.

Northstar Gold Corp. (CSE: NSG)는 Novamera Inc.의 Surgical Mining™ 평가 연구에서 긍정적인 결과를 받았습니다. 이 연구는 최근 발표된 Zone 2 탐사 목표 모델에 근거하며, 9%에서 18% 구리 함량의 75,000~140,000톤을 나타내며, 평균 개념 등급은 12% 구리입니다.

양사는 Novamera의 Surgical Mining™ 기술을 활용한 제3자 자금 조달, 탐사, 개발 및 고품위 구리 생산을 위한 조건을 설정하는 의향서(LOI) 진행 중입니다. 이 혁신적인 채굴 방법은 가파른 경사 좁은 광맥에 적합하며, 낮은 자본 지출과 빠른 생산 일정을 제공하면서 환경 영향을 줄입니다.

Zone 2 광화대는 지표면에서 약 200미터 깊이까지 열려 있으며, 125미터의 주향 길이와 평균 1미터 너비를 가지고 있습니다.

Northstar Gold Corp. (CSE : NSG) a obtenu des résultats positifs de l'étude d'évaluation Surgical Mining™ menée par Novamera Inc. pour le projet Cam Copper Mine Zone 2. L'étude repose sur les modèles récents de cibles d'exploration de la Zone 2 indiquant entre 75 000 et 140 000 tonnes avec une teneur en cuivre comprise entre 9 % et 18 %, avec une teneur moyenne conceptuelle de 12 % de cuivre.

Les entreprises avancent avec une lettre d'intention (LOI) qui établira les termes pour le financement tiers, l'exploration, le développement et la production de cuivre à haute teneur en utilisant la technologie Surgical Mining™ de Novamera. Cette méthode minière innovante est conçue pour les gisements à veines étroites à forte inclinaison, offrant des dépenses en capital réduites et un calendrier de production accéléré tout en réduisant l'impact environnemental.

La minéralisation de la Zone 2 reste ouverte en profondeur, s'étendant de la surface jusqu'à environ 200 mètres de profondeur, avec une longueur de 125 mètres et une largeur moyenne d'un mètre.

Northstar Gold Corp. (CSE: NSG) hat positive Ergebnisse aus der Surgical Mining™ Evaluierungsstudie von Novamera Inc. für das Cam Copper Mine Zone 2 Projekt erhalten. Die Studie basiert auf den kürzlich angekündigten Zone 2 Explorationszielmodellen, die 75.000 bis 140.000 Tonnen mit einem Kupfergehalt zwischen 9% und 18% angeben, mit einem konzeptionellen Durchschnittsgehalt von 12% Kupfer.

Die Unternehmen arbeiten an einem Letter of Intent (LOI), der die Bedingungen für Drittfinanzierung, Exploration, Entwicklung und Produktion von hochgradigem Kupfer unter Verwendung der Surgical Mining™ Technologie von Novamera festlegen wird. Diese innovative Abbaumethode ist für steil einfallende schmale Adern konzipiert und bietet geringere Investitionskosten und schnellere Produktionszeiten bei gleichzeitiger Reduzierung der Umweltbelastung.

Die Mineralisierung in Zone 2 bleibt in der Tiefe offen und erstreckt sich von der Oberfläche bis etwa 200 Meter Tiefe, mit einer Streichlänge von 125 Metern und einer durchschnittlichen Breite von 1 Meter.

Positive
  • Exploration Target indicates high-grade copper potential of 9-18% Cu
  • Innovative Surgical Mining™ technology promises lower CAPEX and faster production timeline
  • Zone 2 mineralization remains open at depth for potential expansion
  • Progress toward LOI for third-party financing and development
Negative
  • Exploration Target is conceptual with no defined mineral resource yet
  • Narrow vein width averaging only 1 metre may present mining challenges
  • Additional exploration and 43-101 Technical Report required before production
  • Economic viability not yet established

Vancouver, British Columbia--(Newsfile Corp. - June 26, 2025) - Northstar Gold Corp. (CSE: NSG) ("Northstar" or the "Company"), is pleased to announce receipt of positive results from Novamera Inc.'s recently completed Cam Copper Mine "Zone 2 Proposed Development and Surgical MiningTM Evaluation Study" (or "Novamera Study"), as provided by terms of a Memorandum of Understanding (MOU) between both Companies (Please see Northstar News Release dated October 3rd, 2024).

Novamara Study results are predicated on Northstar's recently announced Zone 2 Exploration Target 3D models and high-grade copper and tonnage ranges of 75,000 to 140,000 tonnes grading between 9% and 18% copper, with a conceptual average grade of 12% copper1 (Please see Northstar News Release dated June 12, 2025). Northstar's historic direct-shipping high-grade Cam Copper Mine (or the "Cam Copper Project") is situated at the 100%-owned Miller Copper-Gold Property, 18 kilometres southeast of Kirkland Lake, Ontario.2,3,4

Zone 2 Surgical MiningTM Letter of Intent Discussions in Progress

Northstar is also pleased to announce receipt of a draft Letter of Intent (LOI) from Novamera detailing the timeline, terms and conditions for 3rd party financing, exploration, development and high-grade copper production at the Cam Copper Zone 2 Project. The Northstar-Novamera LOI will establish terms under which Novamera will work with partners to seek sources of funding to Surgically MineTM the Cam Copper Project as proposed in the Novamera Study, subject to the definition and permitting of an economic deposit. This includes a multi-staged program (the "Surgical MiningTM Program") to test and extract material from the copper-rich, near vertical Zone 2 VMS horizon at the historic Cam Copper mine site. The LOI is expected to be executed in the very near term.

Novamera has developed technologies for Surgical Mining™, an innovative, data-driven mining method designed to bring steeply dipping narrow vein deposits into production. This groundbreaking approach offers a lower capital expenditure (CAPEX) and a faster path to production, while significantly reducing environmental and social impacts.

Northstar is positioning to commission a NI43-101 reporting compliant Technical Report and Mineral Resource Estimate, including information regarding the Reasonable Prospects for Eventual Economic Extraction, on the Cam Copper Project.

High Grade Cam Copper Zone 2 Exploration Target

Northstar's recently reported Zone 2 Exploration Target is projected to contain between 75,000 and 140,000 tonnes grading between 9% and 18% copper with a conceptual average grade of 12% copper1 (Please see Northstar News Release dated June 12, 2025 and Figures 1 and 2). The Exploration Target study is based on statistical evaluation of 15 mineralized drill core intercepts of Zone 2 and predicated on 3D geological and block models developed this spring by Caracle Creek Consulting Inc. and CGK Consulting Services Inc., respectively. The geological and block models define the Zone 2 Exploration Target as a continuous northwest-trending, steeply-dipping tabular zone of high-grade copper sulphide mineralization (Figures 1 and 2).

Zone 2 is interpreted to host Cu-rich Besshi-type volcanogenic massive chalcopyrite and bornite mineralization, extending from surface to approximately 200 metres depth, spanning approximately 125 metre strike length and averaging 1 metre in width. High-grade Zone 2 mineralization remains open to depth, plunging at -71 degrees southeast along an interpreted VMS feeder zone.

Zone 2 is the largest of 3 narrow, steeply dipping tabular copper horizons with an historic estimate by a previous operator to average 10% copper over a 0.85 metre true width, 42-metre strike length and a minimum 140 metre depth extent from surface2. Northstar's 2023 and 2024 Zone 2 drilling (7 holes), including an intercept of 14.8% copper over 2.45 metres in drill hole CC-03-23 (Please See Northstar News Release dated Nov. 23, 2023), and Zone 2 Exploration Target results corroborate these historic estimates.

1 The above Exploration Target range in tonnes and grade highlights the exploration potential of Cam Copper No. 2 Zone. The quantity and quality are purely conceptual in nature. Insufficient exploration has been carried out to define a mineral resource on the property and a Qualified Person has not done sufficient work to classify the Cam Copper Exploration Target projection as a current mineral resource. These values cannot and should not be relied upon are only included herein as an indication of potential mineralization on the Property. Additional exploration including a 43-101 Technical Report, CIM and NI-43-101 reporting compliant mineral resource estimate and Preliminary Economic Assessment are required to establish the economic potential of Cam Copper No. 2 Zone. It remains unclear whether a mineral resource will be delineated on the Property.

2 Ontario Ministry of Energy, Northern Development and Mines and Mines Assessment File #KL-0843, Prospectus of Fidelity Mining Investments Ltd. 1962

3 Ontario Ministry of Energy, Northern Development and Mines Mineral Deposit Inventory Record MDI31M13NW000154: Tretheway-Ossian- 1981, Ch.H. Cameron-1981

4 Ontario Ministry of Energy, Northern Development and Mines and Mines Assessment File #KL-0259, Tretheway-Ossian (Cam Copper Mine). 1961

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Figure 1. Cam Copper Mine Zone 2 Exploration Target and Extension Drilling

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Figure 2. 3D Block Model and Cu Grade (%) of Cam Copper Zone 2 Exploration Target 

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Qualified Person

The information in this news release that relates to the Exploration Target for the Cam Copper Project is based on, and fairly represents, the available information assembled by Mr. Christopher Keech P.Geo., who is a Qualified Person as defined by NI 43-101, and member in good standing with the Professional Engineers and Geoscientists of British Columbia ("EGBC"). Mr. Keech has sufficient experience, which is relevant to the style of mineralization, type of deposit under consideration, and to the activities being undertaken to qualify as a Qualified Person.

Mr. Keech is the Principal Geologist of CGK Consulting Services Inc. and is independent of the Company. Mr. Keech does not hold any securities in the Company. Mr. Keech has reviewed the technical information in this news release and approves the written disclosure contained herein.

About Northstar

Northstar's primary exploration focus is to advance and expand the near-surface, Allied Gold Zone bulk- tonnage gold-telluride deposit and more recently discovered VMS copper mineral deposits on the Company's flagship, 100%-owned Miller Copper-Gold Property. The Company's strategy is to develop a material (+1M ounce gold / high-grade copper) mineral resource base to supplement a nearby mining operation or support stand-alone mining operations at the Property.

Other Properties

Northstar has 3 additional 100%-owned exploration projects in northern Ontario, including the 1,150 ha Rosegrove Property, situated 0.5 km from the Miller Property, the 4,650 ha Bryce Gold Property (includes the recently optioned Britcanna Lease), an intrusive-gold / PME VMS project located along the projected east extension of the Ridout Break, and the Temagami-Milestone Cu-Ni-Co Critical Minerals Property located in Strathcona Township. Northstar is seeking exploration partners to advance all 3 properties.

On behalf of the Board of Directors,

Mr. Brian P. Fowler, P.Geo.
President, CEO and Director
(604) 617-8191
bfowler@northstargoldcorp.com

Cautionary Note Regarding Forward-Looking Statements

All statements, other than statements of historical fact, contained in this news release constitute "forward-looking information" within the meaning of applicable Canadian securities laws and "forward-looking statements" within the meaning of the United States Private Securities Litigation Reform Act of 1995 (referred to herein as "forward-looking statements"). Forward-looking statements include, but are not limited to, disclosure regarding the completion of the Offering and potential gross proceeds to be raised pursuant thereto, the receipt of all applicable regulatory approvals, the prospective nature of the Company's property interests, exploration plans and expected results, conditions or financial performance that is based on assumptions about future economic conditions and courses of action; planned use of proceeds, expenditures and budgets and the execution thereof. Generally, these forward-looking statements can be identified by the use of forward-looking terminology such as "plans", "expects" or "does not expect", "is expected", "budget", "scheduled", "estimates", "forecasts", "intends", "anticipates" or "does not anticipate" or "believes", or the negative connotation thereof or variations of such words and phrases or state that certain actions, events or results, "may", "could", "would", "will", "might" or "will be taken", "occur" or "be achieved" or the negative connotation thereof.

All forward-looking statements are based on various assumptions, including, without limitation, the expectations and beliefs of management, the receipt of applicable regulatory approvals. availability of financing, the assumed long-term price of gold, that the current exploration and other objectives concerning its mineral projects can be achieved and that its other corporate activities will proceed as expected; that the current price and demand for gold will be sustained or will improve; the continuity of the price of gold and other metals, economic and political conditions and operations; the prospective nature of the Company's properties, availability of financing, and that general business and economic conditions will not change in a materially adverse manner.

Forward-looking statements are subject to known and unknown risks, uncertainties and other factors that may cause the actual results, level of activity, performance or achievements of NSG to be materially different from those expressed or implied by such forward-looking statements, including but not limited to: risks and uncertainties related to the completion of the Offering as presently proposed or at all, the failure to obtain all applicable regulatory approvals; actual results of current exploration activities; environmental risks; future prices of gold; operating risks; accidents, labour issues and other risks of the mining industry; delays in obtaining government approvals or financing; and other risks and uncertainties. These risks and uncertainties are not, and should not be construed as being, exhaustive.

Although NSG has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking statements, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. In addition, forward-looking statements are provided solely for the purpose of providing information about management's current expectations and plans and allowing investors and others to get a better understanding of our operating environment. Accordingly, readers should not place undue reliance on forward-looking statements.

Forward-looking statements in this news release are made as of the date hereof and NSG assume no obligation to update any forward-looking statements, except as required by applicable laws.

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/256858

FAQ

What are the potential copper grades at Northstar's Cam Copper Mine Zone 2?

The Zone 2 Exploration Target indicates potential grades between 9% and 18% copper, with a conceptual average grade of 12% copper.

What is Surgical Mining™ technology and how will it benefit the Cam Copper project?

Surgical Mining™ is Novamera's innovative, data-driven mining method for narrow vein deposits that offers lower capital costs, faster production timeline, and reduced environmental impact.

What is the size and extent of the Zone 2 mineralization at Cam Copper?

Zone 2 extends from surface to 200 metres depth, spans 125 metres in strike length, and averages 1 metre in width, with potential for 75,000 to 140,000 tonnes of mineralization.

What are the next steps for Northstar's Cam Copper Project development?

Northstar plans to commission a NI43-101 Technical Report and Mineral Resource Estimate, while finalizing an LOI with Novamera for financing and development of the project.

Where is the Cam Copper Mine located?

The Cam Copper Mine is located on the 100%-owned Miller Copper-Gold Property, 18 kilometres southeast of Kirkland Lake, Ontario.
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