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Snowline Gold Corp
Symbol SGD
Shares Issued 160,823,166
Close 2025-06-23 C$ 7.92
Market Cap C$ 1,273,719,475
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Snowline Gold pegs Rogue project at $3.37B posttax NPV

2025-06-23 20:06 ET - News Release

Mr. Scott Berdahl reports

SNOWLINE GOLD ANNOUNCES RESULTS OF PRELIMINARY ECONOMIC ASSESSMENT FOR ITS VALLEY GOLD DEPOSIT, ROGUE PROJECT, YUKON

Snowline Gold Corp. has released results from its preliminary economic assessment (PEA) for its Valley gold deposit on its 100-per-cent-owned Rogue project in Canada's Yukon Territory. The PEA is a conceptual study of the potential economic viability of Valley's mineral resources and the first economic assessment of any kind on the broader Rogue project. The Rogue project and broader infrastructure work considered by this PEA overlaps with traditional territories of the first nation of Na-Cho Nyak Dun, the Ross River Dena Council and Kaska Nation.

  • One of the largest undeveloped gold deposits in Canada: PEA projected life of mine (LOM) payable production of 6.8 million ounces of gold (Au) over 20 years;
  • Significant production and high margins: 544,000 ounces annual average Au (gold) production at all-in sustaining costs (AISC) of $569 (U.S.)/oz Au for the first five full years of production;
  • Robust economics: $3.37-billion posttax net present value at a 5-per-cent discount rate (NPV5 per cent) at $2,150 (U.S.)/oz Au, increasing to $6.80-billion at $3,150 (U.S.)/oz Au;
  • Compelling returns with significant leverage to gold: 25-per-cent posttax internal rate of return (IRR) at $2,150 (U.S.)/oz Au, increasing to 37 per cent at $3,150 (U.S.)/oz Au;
  • Rapid payback of initial capital expenditures: $1.7-billion initial capital paid back over 2.7 years at $2,150 (U.S.)/oz Au, decreasing to 2.1 years at $3,150 (U.S.)/oz Au;
  • Gaining momentum: fieldwork and engineering studies are under way on site to inform future technical studies, alongside extensive regional exploration and drilling aimed at complementary, district-scale discovery.

The PEA envisions a conventional open pit mining and milling operation for Valley with a projected 20-year LOM (life of mine) producing 6.8 million ounces (Moz) of payable gold with a front-weighted production profile and attractive economic parameters.

"This PEA reinforces our conviction that Valley can become a world-class mining operation developed at a high standard, with clear potential to bring significant economic benefits to the Yukon," said Scott Berdahl, chief executive officer and director of Snowline. "The rare combination of high margins and large scale makes for a robust asset with stability through a wide range of market conditions. The low strip ratio and strong gold grades enhance project economics by increasing mining efficiency while reducing the overall project footprint.

"These results are a testament to the quality of the Valley deposit and to the hard work of Snowline's team. In less than four years, we've gone from soil sampling and Valley's first drill holes to a significant conceptual NPV. This serves as an important milestone as we continue to press forward on multiple fronts to efficiently and responsibly move Valley forward. Multiple field studies to support advanced technical studies are now under way on site, alongside environmental baseline work to inform future assessment and permitting. Combined with our continuing regional exploration, we are excited by the path ahead and the opportunity to advance an important new contributor to the Canadian gold mining landscape."

PEA overview

When available, readers are encouraged to read the PEA in the company's technical report prepared in accordance with National Instrument 43-101 -- Standards of Disclosure for Mineral Projects (NI 43-101) in its entirety, including all qualifications, assumptions and exclusions that relate to the PEA and mineral resource model. The technical report is intended to be read as a whole, and sections should not be read or relied upon out of context.

The PEA envisions a conventional open pit mining and milling operation with a nameplate processing capacity of 25,000 tonnes per day. Annual gold production averages 544,000 ounces per year during the first five full years, and 341,000 ounces per year over the 20-year LOM. Table 1 presents key operating and financial highlights from the PEA, using base study case assumptions of $2,150 (U.S.)/oz gold and a foreign exchange rate of $1.40 (Canadian) per $1 (U.S.) for economic analysis. Mine design and associated production schedules are based on a $1,950 (U.S.)/oz gold price.

Mineral resource estimate

On May 15, 2025, the company announced an updated mineral resource estimate (the MRE) for Valley.

The PEA is based on the MRE, which comprises 7.94 million ounces of gold averaging 1.21 g/t Au in the measured and indicated categories and an additional 890,000 ounces gold averaging 0.62 g/t Au in the inferred category, based on roughly 53 km of drilling completed by the end of 2024. Note that the PEA production profile is based on a subset of the MRE (revenue factor 0.875 used for PEA versus 1.0 used for MRE), and uses a higher cut-off grade (0.4 g/t Au PEA versus 0.3 g/t Au MRE) on account of a lower gold price used in PEA pit design and processing ($1,950 (U.S.)/oz PEA engineering versus $2,350 (U.S.)/oz MRE).

Mining

The mine plan is based on conventional open pit truck-and-shovel methods with a mill processing capacity of nine Mtpa (million tonnes per annum) over a 20-year LOM. Pit optimization using a gold price of $1,950 (U.S.)/oz selected a pit shell corresponding to a revenue factor of 0.875, which provides favourable geometry for phased pushbacks and access. The selected pit shell contains approximately 171 Mt of mill feed at 1.34 g/t Au and 186 Mt of waste, resulting in a strip ratio of 1.09:1. Note that the lower gold price used in pit design results in a higher cut-off grade versus the MRE (0.4 g/t Au PEA versus 0.3 g/t Au MRE).

The mine schedule is phased to prioritize higher-grade feed in early years, supporting strong early cash flow. A mining bench height of 10 m was selected based on trade-offs between dilution control and equipment productivity. Haulage infrastructure includes dual-lane ramps and single-lane access for the last benches. Waste rock is primarily stored in the adjacent valley in the Waste Rock Storage facility (WSF) with some used for infrastructure construction.

Drill-and-blast operations are required for both waste and mill feed, while overburden is expected to be free-dig. The mine fleet consists of 24-cubic-metre shovels, 139-tonne trucks and associated support equipment sized to meet total material movement requirements.

Metallurgy and processing

The PEA envisions a 25,000-tonne-per-day processing facility based on a standard metallurgical flowsheet, consisting of grinding, gravity separation and carbon-in-leach (CIL) followed by cyanide (CN) detox to produce gold dore. No heap leaching will be used in the project. Metallurgical testing indicates clean, non-refractory gold mineralization. Average gold recovery is estimated at 92.2 per cent for the PEA.

Off-site infrastructure

Year-round road access to site is envisioned for the PEA, with the main development components comprising a bridge over the Pelly River, upgrades to the existing government-maintained North Canol Road and 130 km of new road linking the North Canol Road to site. This new road primarily follows the route of the existing Plata Winter Trail.

On-site infrastructure

The site layout comprises the process plant, fuel and power infrastructure, water and tailings storage facility, camp accommodations, an airfield, waste storage facilities, and administrative buildings. Infrastructure is grouped to minimize haul distances and optimize operations.

A short-term 750-person camp is envisioned to support mining infrastructure and tailings storage facility (TSF) construction, followed by a 250-person camp to support mining operations. Facilities include administrative offices, warehouses, maintenance shops, medical and environmental services, and an incinerator.

A dedicated 1,400 m long airfield is envisioned for crew rotation and select supply delivery. Costing includes support facilities for fuel storage and runway maintenance. Helicopter access would support emergency response and select logistics needs.

For the PEA, all power is assumed to be generated on-site using diesel generators. The installed capacity is 60 megawatts to meet a total demand of 36 megawatts. Five units of 12 megawatts each are planned, with potential integration of waste heat recovery systems.

Tailings management

The location of the TSF was evaluated in accordance with geotechnical, water catchment and environmental criteria. The embankments would be constructed using geosynthetic liners, with systems for seepage collection and staged construction. The design also considers water management strategies for both the operational and closure phases. Continuing technical studies and field investigations will inform future refinement of location and design.

Water management

The water management system envisioned for the PEA separates contact water from non-contact water. Non-contact water is redirected away from site infrastructure using diversion channels. Contact water, primarily from the pit and WSF will be collected in a central pond and treated as required prior to discharge. Water from the TSF is recycled for processing with surplus water being treated as required prior to discharge. Given the uncertain potential for metal leaching (ML) and acid rock drainage (ARD) in the waste rock, the PEA conservatively assumes that water treatment will be necessary. This water management system is designed to support both continuing operations and compliance following closure.

Capital costs

The major components of pre-production capital are estimated at $1,685-million, including a contingency of $246-million. These costs are summarized in Table 3. Infrastructure costs include $84-million (before contingency) for upgrades to the government-maintained North Canol Road and a new bridge over the Pelly River near the existing highway connection at Ross River. The total construction period, including construction of year-round road access to site, is estimated to be 3.5 years.

Sustaining capital over the LOM is estimated to be $1,424-million, including a contingency of $40-million. progressive reclamation and active closure costs are estimated to be $261-million, which includes a postclosure allowance of $89-million.

Operating costs

Operating costs are anticipated to average $37.09/tonne processed, as outlined below in Table 4. Costs were estimated using industry benchmarking to comparable projects, as well as PEA level estimates of the key consumables, such as diesel consumption, reagents and power.

AISC (all-in sustaining costs), which include operating costs, off-site costs, a 1-per-cent net smelter royalty (NSR), sustaining capital costs and progressive reclamation costs, are presented in U.S. dollars. Using the $2,150 (U.S.)/oz study price, AISC average is $844 (U.S.)/oz produced LOM (6.8 Moz produced), including $569 (U.S.)/oz produced during the first five full years of operation (2.7 Moz produced).

Economic analysis

The PEA provides an after-tax NPV5 per cent of $3.37-billion, an IRR of 25 per cent and a payback period of 2.7 years from first production at a gold price of $2,150 (U.S.)/oz and an exchange rate of $1.40 (Canadian) per $1.00 (U.S.). Table 6 presents the sensitivity of after-tax NPV5 per cent, IRR, payback period, cumulative FCF and average annual FCF to changes in the gold price. It should be noted that sensitivities apply to the financial model only; pit selection, cut-off grade and processing schedules are based on a $1,950 (U.S.)/oz gold price and would likely be redesigned to optimize for significantly higher or significantly lower gold price scenarios.

Project timetable and next steps

Snowline intends to efficiently advance the Valley deposit through efforts in four key areas.

Valley is located in the traditional territory of the first nation of Na-Cho Nyak Dun, with proposed site access also within the traditional territories of the Ross River Dena Council and Kaska Nation. The foundation of project advancement comes from continuing engagement throughout all stages of project exploration, scoping, planning and baseline work. Through continued open communication and collaboration, the company intends to design and advance Valley in a responsible, sustainable and ultimately beneficial manner.

The next technical study is expected to be a prefeasibility study (PFS) for the Rogue project, focused on Valley. Fieldwork to support a PFS has recently commenced, and will include geotechnical drilling, groundwater characterization and monitoring, surface material characterization supported by lidar (light detection and ranging) surveying and sonic drilling, and broader geochemical characterization of geological materials. Drilling is also under way at Valley that is planned to convert current inferred mineral resources to indicated mineral resources or higher, so that they may be considered in a PFS.

Preliminary environmental baseline monitoring began at Valley in October, 2022. Over the coming months, the company plans to expand the scope of these baseline studies, both spatially and by discipline to encompass a broader range of data types, to provide a holistic picture to inform future permitting.

Opportunities and exploration potential

The PEA is an initial, conceptual evaluation of a mining scenario at Valley. While care has been taken to provide accurate estimates and realistic assumptions, the preliminary nature of the study provides opportunities for further refinements of the operation that could potentially improve the project's technical and financial performance.

Resource expansion and satellite deposits: The Valley gold deposit remains open in multiple directions, with open edges to the current resource, large volumes of the host intrusion still untested by drilling and areas of gold mineralization encountered in drilling that are outside of the current resource and the PEA mine plan. Exploration drilling within the surrounding intrusion is currently under way. On a broader scale, the Rogue plutonic complex hosts multiple additional gold-bearing intrusions with the potential to host Valley-style mineralization. Surface exploration and drilling of multiple such targets are planned for the 2025 field season.

Throughput, phasing and cut-off optimization: The PEA uses mine life and NPV as primary factors in determining mining rate and mill throughput, and assuming a constant milling capacity of 25,000 tonnes per day throughout the LOM. Scaling up LOM throughput would increase annual gold production, accelerating cash flows and thus potentially increasing NPV at the expense of mine life, while increasing initial capital expenditures.

Similarly, increasing mill throughput following year 5 could conceptually increase annual production rates to more than 500,000 oz/year throughout the entirety of a shorter LOM, but the technical feasibility of this increase requires further study, and it would add capital costs that could potentially offset gains from accelerated cash-flow.

Outside of throughput considerations, using a higher cut-off grade would result in higher overall margins per ounce and -- given the near-surface distribution of the highest grades in the deposit -- reduced LOM stripping ratios, but doing so would result in a smaller production profile and a shorter LOM.

At present, such trade-offs have not been studied in detail. These factors will be analyzed to inform future technical studies and planning.

Infrastructure support: Capital expenditures in the PEA assume requisite upgrades to public infrastructure along the Yukon's North Canol Road -- which provides access to a number of important resource projects -- are borne entirely by the Rogue project. Presently, the Canadian government's Critical Minerals Infrastructure Fund has allocated initial capital to study potential road upgrades, bridge construction and power transmission along this infrastructure corridor. Given the public nature of the road and the presence of multiple resource companies in the region, the assumption that all expenditures would be borne by the project is thought to be conservative.

Power optimization: On-site diesel power generation is assumed for the PEA. For future technical studies and project planning, additional work will be conducted to review the relative impact of various alternative options.

Closure costs: A conservative approach has been taken with respect to progressive reclamation, closure costs and postclosure reclamation work. Where uncertainties exist, financial allowances for worst-case scenarios have been made. Planned future work may provide further clarity which could eliminate any unneeded expenditures.

Study notes

Snowline retained SRK Consulting (Canada) as lead consultants, along with additional independent contractors, to prepare the PEA in accordance with National Instrument 43-101.

The PEA is based on the most recent (May 15, 2025) MRE for Valley, comprising 7.94 million ounces gold averaging 1.21 g/t Au in the measured and indicated categories and an additional 890,000 ounces gold averaging 0.62 g/t Au in the inferred category, based on roughly 53 kilometres of drilling completed by the end of 2024. Notably, approximately 95 per cent of gold production in the PEA comes from mineral resources that are currently classified as measured and indicated. The effective date of the PEA is March 1, 2025, and the technical report will be filed on the company's website and under its SEDAR+ profile within 45 days of this news release.

The PEA is preliminary in nature and includes inferred mineral resources (approximately 5 per cent of total mineral resources) that are considered too speculative geologically to have the economic considerations applied to them that would enable them to be categorized as mineral reserves. There is no certainty that the PEA will be realized.

Confernce call details

The company will host a conference call to discuss the results at 6 a.m. PT/9 a.m. ET on Tuesday, June 24, 2025. The details are below.

To participate in the conference call, please use dial-in numbers shown herein and request to join the Snowline Gold Corp call on-line.

Participant telephone numbers:

Canada/United States toll-free:  1-844-763-8274

International toll:  1-647-484-8814

About Snowline Gold Corp.

Snowline Gold is a Yukon Territory-focused gold exploration and development company with an eight-project portfolio covering roughly 360,000 hectares (3,600 square kilometres). The company is advancing its Valley deposit -- a large, low-strip, near-surface, greater than one g/t 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.

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 persons

The following authors of the PEA are qualified persons for the purposes of NI 43-101 and the PEA-related information in this news release has been prepared under the supervision of and approved by them:

  • Bob McCarthy, PEng, SRK Consulting (Canada) Inc.;
  • Ed Saunders, PEng, SRK Consulting (Canada);
  • Ignacio Garcia, PEng, SRK Consulting (Canada);
  • Mauricio Herrera, PEng, SRK Consulting (Canada);
  • Christina James, PEng, SRK Consulting (Canada);
  • Jeff Clarke, PGeo, SRK Consulting (Canada);
  • Heather Burrell, PGeo, Archer, Cathro & Associates (1981) Ltd.;
  • Steven C. Haggarty, PEng, Haggarty Technical Services Corp.;
  • Daniel J. Redmond, PGeo, D Redmond Consulting and Associates.

Additional scientific and technical information in this news release not specific to the PEA has been prepared under the supervision of and approved by Thomas Branson, MSc, PGeo, vice-president of exploration for Snowline, as qualified person for the purposes of NI 43-101.

We seek Safe Harbor.

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