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: 544koz annual average Au production at all in sustaining costs (“AISC”)[1] of US$569/oz[2] Au for the first five full years of production
Robust economics: C$3.37 billion post-tax net present value at a 5% discount rate (“NPV5%”) at US$2,150/oz Au, increasing to C$6.80 billion at US$3,150/oz Au[3],
Compelling returns with significant leverage to gold: 25% post tax internal rate of return (“IRR”) at US$2,150/oz Au, increasing to 37% at US$3,150/oz Au
Rapid payback of initial capital expenditures: C$1.7 billion initial capital paid back over 2.7 years at US$2,150/oz Au, decreasing to 2.1 years at US$3,150/oz Au
Gaining momentum: Fieldwork and engineering studies are underway on site to inform future technical studies, alongside extensive regional exploration and drilling aimed at complementary, district-scale discovery.
Vancouver, B.C., June 23, 2025: SNOWLINE GOLD CORP. (TSX-V: SGD) (OTCQB: SNWGF) (the “Company” or “Snowline”) is pleased to announce results from its Preliminary Economic Assessment (“PEA” or the “Study”) for its Valley gold deposit (“Valley”) on its 100%-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 Nyäk Dun, the Ross River Dena Council and Kaska Nation.

The PEA envisions a conventional open pit mining and milling operation for Valley with a projected 20-year LOM 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, CEO & 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.”

[1] AISC are the sum of operating costs, off-site costs, 1% NSR payments, sustaining capital costs and progressive reclamation costs (C$13M), divided by payable gold ounces produced. AISC excludes closure costs and any post-closure costs. Refer to the “Non-GAAP Financial Measures” section of this news release for more information.

[2] Based on an exchange rate of 1.40 CAD per 1.00 USD.

[3] Sensitivities apply to the financial model only; pit selection, cut-off grade and processing schedules remain based on a US$1,950/oz gold price and would likely be redesigned to optimize for significantly higher or significantly lower gold price scenarios.

“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 underway on site, alongside environmental baseline work to inform future assessment and permitting. Combined with our ongoing 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 (“Technical Report”) prepared in accordance with National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“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 US$2,150/oz gold and a foreign exchange rate of 1.40 CAD per 1.00 USD for economic analysis. Mine design and associated production schedules are based on a US$1,950/oz gold price. Figure 1 presents annual gold production and AISC over the LOM.

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https://snowlinegold.com/2025/06/23/snowline-gold-announces-results-of-preliminary-economic-assessment-for-its-valley-gold-deposit-rogue-project-yukon/