8-K: i-80 Gold Advances Nevada Projects, Reports High-Grade Assays

i-80 Gold Corp. announced significant progress on its Nevada gold projects, including permit receipt for Archimedes and high-grade drill results from Granite Creek and Cove.

Summary

• Received all required permits and commenced construction at the Archimedes project, the company's second planned underground mine.
• Archimedes is expected to begin contributing to gold output in the fourth quarter of 2026.
• Phase One of the development plan targets an increase in annual gold output from less than 50,000 ounces to a range of 150,000 to 200,000 ounces by 2028.
• The overall three-phase development plan aims to achieve an annual gold output target of 600,000 ounces in the early 2030s.
• Initial assay results from the Granite Creek Underground Project's South Pacific Zone show robust high-grade mineralization, including 33.6 g/t gold over 2.9 meters and 29.7 g/t gold over 3.6 meters.
• Infill drilling at the Cove Underground Project successfully supported the geological model, confirmed the high-grade nature of the deposit, and demonstrated potential for continued resource expansion.
• The feasibility study for Granite Creek Underground is planned for completion in the first quarter of 2026.
• The feasibility study for Cove is also planned for completion in the first quarter of 2026.
• The Archimedes feasibility study has been accelerated by approximately 12 months, now targeted for completion in the first quarter of 2027.
• Accelerating the Archimedes drill program and feasibility study is expected to increase drilling costs by approximately $10 million to $25 million.
• The Preliminary Economic Assessment (PEA) for Archimedes projects an after-tax net present value of $644 million (at a 5% discount rate) and an internal rate of return of 81% (at a $3,000 per ounce gold price).
• Archimedes anticipates an initial mine life of approximately 10 years, with an average annual gold output of 100,000 ounces at an all-in-sustaining cost of $1,877 per ounce.
• Archimedes hosts 436,000 ounces of gold in the Indicated mineral resource category at 7.6 grams per tonne and 988,000 ounces in the Inferred mineral resource category at 7.3 grams per tonne.

Sentiment

Score: 8

Explanation: The filing reports significant operational progress, positive drill results, and accelerated project timelines, indicating strong execution of the development plan. The robust economic metrics for Archimedes are positive. However, the increased drilling cost and the preliminary nature of resource estimates (not reserves) introduce some caution.

Positives

• Received all required permits for the Archimedes project, allowing construction to commence as planned.
• Commencement of construction at Archimedes marks a major milestone in the company's growth strategy.
• Archimedes is expected to begin contributing to gold output in Q4 2026, providing a clear timeline for production.
• Phase One targets a significant increase in annual gold output to 150,000-200,000 ounces by 2028, up from less than 50,000 ounces.
• The long-term three-phase plan aims for an annual gold output of 600,000 ounces in the early 2030s, indicating substantial growth potential.
• Initial assay results from Granite Creek Underground show robust high-grade mineralization, with the South Pacific Zone demonstrating potential for expansion to the north and at depth.
• Cove infill drilling confirmed the high-grade nature and resource expansion potential, validating the geological model.
• The Archimedes infill drill program and feasibility study have been accelerated by 12 months, indicating efficient project advancement.
• Archimedes PEA highlights strong economics with an after-tax NPV of $644 million and an IRR of 81% at a $3,000/oz gold price.
• Significant mineral resources at Archimedes, with 436,000 oz Indicated (7.6 g/t) and 988,000 oz Inferred (7.3 g/t), provide a solid foundation for future production.
• Anticipated resource conversion success at Cove, Granite Creek, Archimedes, and Mineral Point suggests consistent high-grade resources across the portfolio.

Negatives

• Accelerated drilling at Archimedes is expected to increase costs by approximately $10 million to $25 million.
• All properties are currently classified as exploration stage under SEC S-K 1300 rules, as no mineral reserves have been determined.
• Production targets are preliminary in nature and based on mineral resources, which do not have demonstrated economic viability and are not mineral reserves.
• Inferred mineral resources are considered too speculative geologically for the application of economic considerations that would enable them to be categorized as mineral reserves.

Risks

• General economic and industry conditions.
• Volatility of commodity prices.
• Title risks and uncertainties.
• Ability to access sufficient capital from internal and external sources, such as selling assets, restructuring debt, or obtaining additional equity capital on terms that may be onerous or highly dilutive.
• Ability to refinance indebtedness depends on capital markets and financial condition at such time.
• Currency fluctuations.
• Construction and operational risks.
• Licensing and permit requirements.
• Environmental risks.
• Competition from other industry participants.
• Lack of availability of qualified personnel or management.
• Imprecision of mineral resource or production estimates.
• Uncertainty in geological, metallurgical, and geotechnical studies and opinions.
• No assurance that any of the events anticipated by forward-looking statements will transpire or occur, or that the company will derive therefrom any benefits.

Future Outlook

Archimedes is expected to begin contributing to gold output in the fourth quarter of 2026. The company's three-phase development plan is projected to increase annual gold output to a target of 600,000 ounces in the early 2030s, with Phase One aiming for 150,000 to 200,000 ounces by 2028. The Lone Tree refurbishment Class 3 engineering study is on schedule for completion in Q4 2025. Feasibility studies for Granite Creek Underground and Cove are planned for Q1 2026, while the Archimedes feasibility study is accelerated to Q1 2027. Permitting for Archimedes below the 5100-foot elevation is underway, with completion estimated for H1 2027. Resource conversion drilling and metallurgical testing are also planned as next steps.

Management Comments

• Richard Young, President & CEO: "The receipt of permits and commencement of construction at Archimedes marks a major milestone for i-80 Gold as we advance Phase One of our growth strategy in Nevada. Phase One is expected to increase annual gold output from less than 50,000 ounces to a target range of 150,000 to 200,000 ounces of gold by 2028. We are excited about the exploration potential at Archimedes. The lower zone remains open to the north and south, offering substantial exploration potential that we believe can extend the current 10-year mine life."
• Tyler Hill, Vice President, Geology: "At Granite Creek Underground, the first six holes from our infill drill program continue to show robust high-grade mineralization throughout the South Pacific Zone and suggest that the deposit has the potential to expand to the north and at depth. Similarly at Cove, the 2025 infill drill program successfully supported our geological model, confirmed the high-grade nature of the underground deposit, and demonstrated the potential for continued resource expansion at Cove. These findings were a key step in advancing the Cove feasibility study, which is expected in the first quarter of 2026, and reinforce our view that the resource conversion success which we anticipate at Cove could similarly be achieved at Granite Creek Underground, Archimedes Underground, and Mineral Point open pit given the comparable disseminated Carlin-style mineralization. Together, these outcomes from Granite Creek Underground and Cove highlight the consistency of high-grade resources and meaningful growth upside that exists across i-80s underground gold portfolio in Nevada."

Industry Context

i-80 Gold Corp. is positioning itself as a mid-tier gold producer in Nevada, a state renowned for its prolific gold-producing trends. The company's strategy involves leveraging its central Lone Tree processing facility in a 'hub-and-spoke' model, which is a common approach in regions with multiple satellite deposits. The focus on high-grade Carlin-style mineralization at projects like Cove and Granite Creek aligns with the geological characteristics of many successful gold operations in Nevada, indicating a strategic focus on known, high-potential deposit types.

Stakeholder Impact

• Shareholders: Potential for increased value due to significant project advancements, higher production targets, and positive drill results. However, increased drilling costs and the preliminary nature of resource estimates (not reserves) introduce some investment risk.
• Employees: Increased activity at Archimedes and other projects is likely to create more employment opportunities in Nevada, supporting local job growth.
• Local Communities: Economic benefits from mining activities, including job creation and local spending. Environmental permits are secured, but ongoing monitoring and compliance will be important.
• Creditors/Lenders: Improved project economics and operational progress could enhance the company's creditworthiness, but reliance on future funding and refinancing remains a factor for debt holders.

Next Steps

• Completion of the Lone Tree refurbishment Class 3 engineering study in Q4 2025.
• Initial infill drilling of the Archimedes upper zone from underground in Q4 2025.
• Underground infill drilling of the Archimedes lower zone in Q1 2026.
• Completion of the feasibility study for Granite Creek Underground in Q1 2026.
• Completion of the feasibility study for Cove (2026 Cove FS) in Q1 2026.
• Completion of the Archimedes feasibility study in Q1 2027.
• Resource conversion drilling to commence as the underground decline advances at Archimedes, with results incorporated into an updated resource model.
• Permitting actions to meet National Environmental Policy Act and Nevada Department of Environmental Protection requirements for mining below the 5100-foot elevation at Archimedes.
• Metallurgical test work targeting initial Ruby Hill production areas to confirm recoveries with anticipated Lone Tree process conditions.
• SRK Consulting engaged to complete the 2026 Cove FS.

Key Dates

Recommendation

The company is demonstrating strong execution of its multi-project development strategy, marked by securing critical permits for Archimedes and initiating construction ahead of schedule. The robust economic projections for Archimedes, coupled with high-grade drill results from Granite Creek and Cove, significantly de-risk future production and resource conversion. The acceleration of feasibility studies and clear path to increased gold output to 600,000 ounces annually by the early 2030s positions i-80 Gold for substantial growth. While increased drilling costs are noted, the overall positive momentum and strategic advancements outweigh these, making it an attractive investment.

Keywords

Gold mining, Nevada, i-80 Gold, Archimedes project, Granite Creek, Cove project, Gold production, Exploration, Permits, Underground mining, Feasibility study, Mineral resources, Precious metals, Mining development, Lone Tree processing facility