Mr. Scott Berdahl reports

SNOWLINE GOLD AWARDS KEY CONTRACTS AND COMMENCES PREFEASIBILITY STUDY ON ITS FLAGSHIP ROGUE PROJECT, YUKON

Snowline Gold Corp. has commenced work on a fully financed PFS (prefeasibility study) for the Valley gold deposit on its flagship Rogue project in the eastern Yukon Territory. To ensure rigour across different aspects of the study, Snowline has engaged multiple firms on different components of the PFS. Wood Canada Ltd. is leading engineering and study integration, SRK Consulting (Canada) Inc. is leading the geoscience scope and WSP Canada Inc. is leading tailings storage facility (TSF) engineering. The PFS will assess multiple options for possible future development and mine design at Valley, defining the engineering and economic frameworks for advancing Valley toward a potential feasibility study. Much of the fieldwork required for the PFS is already complete; during 2025 Snowline conducted comprehensive engineering and environmental programs to inform the PFS, including geotechnical and sonic drilling, infill drilling, metallurgical testing, groundwater hydrology, and geochemical sampling, with supplemental laboratory testing well under way.

• Work on fully financed Rogue project prefeasibility study (PFS) under way, with extensive supporting fieldwork already completed in 2025;
• Wood Canada Ltd. appointed as lead engineering consultant, responsible for process plant design, infrastructure, capital and operating cost estimation, and overall study integration;
• SRK Consulting (Canada) to lead the geoscience scope, including open-pit mine design and optimization, hydrogeology, water management, geochemistry, and geotechnical studies;
• WSP Canada to lead the tailings storage facility engineering scope, covering trade-off studies and embankment design, facility development, and closure planning;
• Expanded environmental baseline program under way to support advanced Rogue project permitting.

"The kick-off of our PFS is an important milestone as we continue to advance our flagship Valley deposit, assessing multiple potential paths forward and optimizing important parameters of a potential future operation," said Scott Berdahl, chief executive officer and director of Snowline. "The appointment of committed and experienced teams at Wood, SRK and WSP, each specialized to deliver on different aspects of the PFS, underpins our commitment to deliver a high-quality study that can be used as the basis of future decision making. We look forward to completing this important work and the disclosure of the PFS, a process that we anticipate taking 12 to 15 months to complete.

"I would like to thank our field teams and partners for a safe and successful 2025 field program, accommodating major engineering and environmental work to support the PFS and future permitting efforts while still executing on an ambitious exploration program. These efforts have put us in a strong position to rapidly advance this next level of study. The efficiency with which we have been able to shift from drill discovery to PFS is a testament both to the quality and consistency of the near-surface Valley deposit, and to the efforts and dedication of our team."

Extensive engineering work completed in 2025

Snowline's 2025 field program included an expansive engineering program to support rapid progress of a robust PFS. Data collected by this work program is expected to advance and derisk Valley project design. Completed 2025 engineering work includes:

• 51 sonic drill holes and 74 excavator test pits to characterize overburden composition and thickness for mine planning and infrastructure site suitability;
• Seismic surveying at 146 stations across six locations to assess depth to bedrock;
• 13 geotechnical holes drilled and logged (assays forthcoming) with testing to characterize rock properties, hydrogeology and pit stability;
• Pit geotechnical: installation of 30 thermistors in two strings and 25 vibrating wire piezometers across seven holes for robust subsurface temperature and groundwater monitoring;
• Infrastructure and foundations: installation of 10 thermistor strings and 40 vibrating wire piezometers for subsurface temperature and groundwater monitoring;
• Two additional large diameter metallurgical holes drilled and laboratory work under way to inform flowsheet optimization and power use trade-off studies along with waste rock and tailings characterization;
• Dedicated structural geology traverses, drone photogrammetry and drill core structural study to inform and derisk pit design;
• Regional high resolution lidar (light detection and ranging) surveying along potential access route corridor.

Environmental baseline expanded to support permitting

Snowline initiated environmental surveying during its inaugural 2021 exploration season, completing botanical inventories of key target areas, as well as wildlife surveying and monitoring. Hydrology and surface water quality monitoring around the Valley deposit has been ongoing since October, 2022.

Following the 2025 PEA, the company has expanded the breadth and scope of environmental baseline surveying to include potential infrastructure sites and broader regional information. Continuing environmental baseline surveying includes:

• Significantly increased monthly water quality monitoring sites and continuous monitoring hydrology sites within the Rogue project area;
• Significant expansion of aquatic and fisheries baseline programs;
• Installation of 23 groundwater monitoring wells for hydrogeology modelling;
• Expansion of wildlife surveying to include all species within the Rogue project area and to capture all seasons across a broad regional footprint;
• Installation of a second meteorology site to expand on baseline weather conditions in the Rogue project area;
• Deployment of six continuous wind monitoring stations to evaluate the potential for wind energy generation for the Rogue project.

The expanded environmental baseline program informs preparation for future environmental assessment and permitting of the Rogue project, with collaborative discussions under way with first nations on continuing environmental baseline activities and surveys.

Wood Canada -- lead engineering

Wood will serve as the lead engineering company for the PFS. Its mandate includes process plant and site infrastructure design, integration of logistics and power systems, and preparation of capital and operating cost estimates. Wood brings extensive experience in delivering complex mining and infrastructure projects in remote northern climates, with strong expertise in cold-weather construction, permafrost engineering and logistics planning. Wood will also oversee the co-ordination of all study deliverables and maintain schedule and cost alignment across disciplines.

SRK Consulting (Canada) -- geoscience and mine engineering

SRK will lead the geoscience scope of the PFS. This includes open-pit mine design and optimization, geotechnical and hydrogeological characterization, water management, geochemistry, closure planning, and related support studies. SRK's team combines deep technical expertise across mining, engineering and environmental disciplines with direct familiarity with the Valley deposit. SRK have supported the Rogue project through completion of the PEA and an extensive field program in 2025. Their involvement provides valuable continuity of knowledge and ensures a high level of technical integration across the PFS components.

WSP Canada -- tailings storage facility design

WSP has been selected to lead the TSF engineering scope. The company will be responsible for the design of the TSF including tradeoff studies, embankment design, facility development and closure planning. WSP's Canadian team brings strong technical capabilities in tailings design, water management and closure planning. Its work will ensure that the TSF meets both best- practice engineering standards and internationally recognized guidelines for tailings management, emphasizing long-term environmental performance and sustainability.

About Snowline Gold Corp.

Snowline Gold is a Yukon Territory-focused gold exploration and development company with mineral claim portfolio covering roughly 360,000 hectares (3,600 square kilometres). The company is focused on advancing its Valley gold deposit -- a large, low-strip, near-surface, greater than one gram per tonne Au bulk tonnage gold system located in the eastern Yukon -- while continuing regional exploration of surrounding targets on the Rogue project and the broader district in the highly prospective yet underexplored Selwyn basin.

Valley hosts an open MRE of 7.94 million ounces gold at 1.21 g/t Au in measured and indicated categories (in 204.0 million tonnes) and an additional 0.89 million ounces gold at 0.62 g/t Au in the inferred category (in 44.5 million tonnes), with a cut-off grade of 0.3 g/t Au. Results of the Valley PEA suggest the potential for the deposit to support a long-life mining operation with a strong production profile and low production costs. The MRE and PEA are supported by the recent technical report, prepared in accordance with National Instrument 43-101 -- Standards of Disclosure for Mineral Projects standards, available on SEDAR+ and the company's website.

Snowline's project portfolio sits within the prolific Tintina gold province, host to multiple-million-ounce-plus gold mines and deposits across the central Yukon and Alaska. The company's comprehensive first-mover position and extensive exploration database provide a distinct competitive advantage and a unique opportunity for investors to be part of multiple discoveries, the advancement of a significant gold deposit, and the creation of a new gold district.

Qualified person

Information in this news release in all sections apart from the About Snowline Gold Corp. section has been prepared under the supervision of and approved by Victor Vdovin, MSc, MBA, PEng, vice-president of engineering for Snowline, as qualified person for the purposes of National Instrument 43-101.

Information in the About Snowline Gold Corp. section of this news release has been prepared under the supervision of and approved by Sergio Gamonal, MSc, PGeo, chief geologist for Snowline, as qualified person for the purposes of NI 43-101.

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