Mr. Brian Fowler reports

NORTHSTAR ADVANCES DUAL GOLD AND COPPER PROJECTS AT MILLER PROPERTY AMID RECORD GOLD PRICES AND RENEWED KIRKLAND LAKE EXPLORATION ACTIVITY

Northstar Gold Corp. has provided an exploration and development update for the company's 100-per-cent-owned Miller copper-gold property, situated approximately 18 kilometres southeast of Kirkland Lake, Ont.

While Northstar continues advancing the high-grade Cam copper volcanogenic massive sulphide (VMS) project and associated Surgical Mining initiatives with Novamera Inc., the company is also positioning to renew expansion drilling at the nearby Allied gold zone later this year.

Northstar's planned Allied gold zone advancement comes amid significantly higher gold prices and increasing exploration activity in the southern Kirkland Lake camp, including continuing drilling by Kirkland Lake Discoveries Corp. on the KL South property, immediately adjacent to Northstar's Miller copper-gold property.

Northstar believes renewed district-wide exploration success and attention, combined with gold prices that have more than doubled since the company's 2022 SRK exploration target study, materially enhances the significance and strategic value of the Allied gold zone and broader Miller intrusive complex gold system.

Allied gold zone highlights:

• SRK Consulting (Canada) Inc. previously completed a 3-D exploration target study for the Allied and Vein 1 zones at the Miller property, outlining an upper conceptual exploration target estimate of approximately 250,000 to 500,000 near-surface ounces of gold grading 1.39 to 2.04 grams per tonne (g/t) gold (Au)*.
• The exploration target remains open along strike, downdip and at depth, with numerous additional untested syenite-associated gold targets identified across the property.
• Previous Northstar drilling within the Allied gold zone intersected broad intervals of near-surface gold mineralization, including:
  • 6.6 g/t Au over 117.0 metres;
  • 4.0 g/t Au over 50.6 metres;
  • 1.43 g/t Au over 118.5 metres;
  • 1.2 g/t Au over 107.3 metres.
• High-grade Au-Cu (gold-copper) feeder-style structures intersected in drilling include:
  • 4.71 g/t Au and 0.51% Cu over 6.4 metres;
  • 9.41 g/t Au and 1.03% Cu over 3.0 metres.
• A 2023 high-resolution UAV (unmanned aerial vehicle) magnetic survey identified a volumetrically large more-than-one-kilometre deep magnetic anomaly (SM-01) underlying the Allied gold zone, interpreted as a possible deeper Cu-Au intrusive source system.

Allied gold zone drill plans

Northstar has recently commenced targeting strike and depth extensions of the Allied gold zone and associated Au-Cu feeder structures within the Miller intrusive complex.

A proposed 2026 drill program is expected to focus on:

• Expansion of the near-surface Allied gold zone;
• Testing deeper gold-copper structural feeder zones;
• Follow-up drilling of the Independence fault zone;
• Follow-up drilling of the Planet and Meilleur syenite areas within the Miller intrusive complex;
• Evaluation of new geophysical and magnetic targets generated from previous UAV magnetic, IP (induced polarization) and geological modeling programs.

Cam copper Surgical Mining advancement continues

Concurrent with advancing the Allied gold zone, Northstar continues to collaborate with consortium partners Novamera, Micon International Ltd. and DIGITAL to evaluate and advance the company's Cam copper zone 2 Surgical Mining initiative toward potential near-term development and production.

Recent drilling and geophysical programs at Cam copper confirmed the presence of high-grade VMS (volcanogenic massive sulphide) copper mineralization, including:

• 14.8 per cent copper over 2.45 metres;
• 21.7 per cent copper over 1.35 metres;
• 3.05 per cent Cu, 5.9 g/t Au, 22.9 g/t silver (Ag), 0.45 per cent molybdenum (Mo) over 3.07 metres;
• 13.95 per cent Cu, 0.62 g/t Au and 32 g/t Ag over 0.56 metre;
• A 350-metre-long, 200 Siemens EM (electromagnetic) conductor reflecting a southeast extension of the Cam copper zone VMS horizons.

The Miller copper-gold property demonstrably hosts two potentially complementary development opportunities consisting of:

1. A near-term high-grade copper critical minerals development opportunity at Cam copper;
2. A district-scale intrusive-hosted gold system centered on the Allied gold zone and Miller intrusive complex.

Management commentary

"Northstar remains fully committed to advancing the Cam copper Surgical Mining opportunity, which we believe represents a unique near-term critical minerals development opportunity," states Brian P. Fowler, PGeo, president and chief executive officer of Northstar. "At the same time, the company believes the market has largely overlooked the significance of the Allied gold zone in today's gold price environment.

"Much of the Allied gold zone exploration and modelling work was completed when gold traded near $2,000 (U.S.) per ounce. With gold prices now at historically elevated levels and renewed exploration success occurring immediately adjacent to the Miller property, Northstar believes this is an important opportunity to advance and potentially unlock additional value from the Allied gold zone through renewed drilling.

"Few junior exploration companies in the Kirkland Lake district currently possess both a potentially near-term critical minerals development opportunity and a large-scale intrusive-hosted gold exploration system within the same wholly owned property."

Cam copper project consortium and Surgical Mining technology partnership

A Cam copper zone 2 Surgical Mining pilot program is advancing under a definitive turnkey Surgical Mining services agreement with Novamera (please see Northstar news release dated Oct. 9, 2025) and a collaborative consortium with Novamera, Micon International and DIGITAL -- Canada's global innovation cluster for digital technologies, under a master project agreement announced Nov. 24, 2025.

This collaboration is focused on deploying data-driven mining solutions and Novamera's proprietary Surgical Mining technology to enable efficient, low-impact extraction of high-grade copper resources.

Northstar is advancing toward issuance of a notice to proceed under the agreement by obtaining the necessary permits and project financing. The company has commissioned Micon to prepare a National Instrument 43-101 technical report and mineral resource estimate for the Cam copper project to formally evaluate zone 2 reasonable prospects for eventual economic extraction before making any production or development decision.

Surgical Mining strategic financing and project advancement

Northstar continues to strengthen its financing base through a combination of equity and non-dilutive sources:

• The company and consortium partners have been approved to access up to $4.0-million in co-investment financing from DIGITAL (please see Jan. 28, 2026, Northstar news release).
• This financing supports the Cam copper Surgical Mining for critical minerals project, part of a broader approximately $11-million initiative.
• Since late December, 2025, Northstar has cumulatively raised gross proceeds of $1,905,700 in non-brokered hard-dollar, critical minerals flow-through and advance royalty offerings.
• Under the master project agreement, Northstar has applied for and anticipates near-term reimbursement of eligible project expenditures from DIGITAL.

Qualified person

Brian Fowler, PGeo, president and CEO of Northstar Gold, is a qualified person within the meaning of National Instrument 43-101, and has reviewed and approved the technical information contained in this news release.

* Exploration target disclosure

The exploration target estimates highlight the exploration potential of the Allied gold zone and Cam copper zone 2 on the Miller copper-gold property. The quantity and grades are purely conceptual in nature. Insufficient exploration has been carried out to define a mineral resource on the property. A qualified person has not done sufficient work to classify these exploration target estimates as current mineral resources and the company is not treating these exploration target estimates as current mineral resources. These values cannot and should not be relied upon, and are only referred to herein as an indication of potential mineralization on the property. Additional exploration, including an NI 43-101 technical report, a CIM- and NI 43-101-reporting-compliant mineral resource estimate, and a preliminary economic assessment, are required to establish the economic potential of the Allied gold zone and Cam copper zone 2. It remains uncertain whether a mineral resource will be delineated on the property.

About Northstar Gold Corp.

Northstar's primary exploration focus is to advance and expand the near-surface Allied gold zone bulk-tonnage gold-telluride system and recently discovered high-grade VMS copper mineralization at the company's flagship 100-per-cent-owned Miller copper-gold property, located near Kirkland Lake, Ont. The company is also advancing the Cam copper project utilizing innovative Surgical Mining technologies in collaboration with Novamera.

In addition, Northstar holds three other 100-per-cent-owned exploration properties in Northern Ontario: the Rosegrove property (1,150 hectares (ha)); the Bryce gold property (4,650 ha, including the Britcanna lease); and the Temagami-Milestone Cu-Ni-Co (copper-nickel-cobalt) property.

The company is actively seeking partners to advance these additional assets.

We seek Safe Harbor.