i-80 Gold's Stockpile Strategy Prioritises Future Recovery Economics Over Near-Term Processing

• i-80 Gold Corp terminated its Vox Royalty gold offtake agreement, removing obligations to deliver up to 40,000 ounces of gold annually through 2028 and enabling evaluation of stockpiling opportunities.
• First-quarter 2026 operating results reported approximately 4,000 ounces of recoverable gold within a sulphide stockpile created by the timing of third-party processing.
• Current third-party processing generates a 55% to 60% payability factor on refractory material, while the planned Lone Tree pressure oxidation (POX) circuit targets approximately 92% recovery.
• An engineering study completed in the fourth quarter of 2025 estimated refurbishment capital of approximately US$430 million, while cash and cash equivalents totalled US$513.5 million as of March 31, 2026.
• The strategy shifts emphasis from maximising current processing volumes to preserving inventory flexibility ahead of the targeted late-2027 commissioning at Lone Tree.

Current Processing Constraints Are Creating Inventory

The emergence of a sulphide stockpile reflects the practical reality of i-80 Gold's (NYSE American: IAUX) (TSX: IAU) current operating model. First-quarter 2026 operating results reported approximately 4,000 ounces of recoverable gold contained within a sulphide stockpile, with the company attributing the accumulation to the timing of third-party processing rather than mining constraints.

Chief Operating Officer of i-80 Gold Corp, Paul Chawrun, described the current processing arrangement:

"Our ore is currently going through an autoclave through a third-party partner."

That statement highlights an important distinction between mining and processing capacity. Ore can continue to be extracted, developed and prepared for treatment while processing remains dependent on external facilities. The resulting stockpile, therefore, represents inventory awaiting processing rather than material that has yet to be mined. As underground development advances at Granite Creek and Archimedes, inventory accumulation becomes a measurable indicator of how production is being managed during the period before Lone Tree enters service.

Inventory Accumulation Creates Strategic Optionality

Inventory is often viewed as deferred revenue, but the strategic significance of the sulphide stockpile extends beyond timing. By retaining ownership of material that has already been mined, management preserves flexibility over when that material enters processing and under what economic conditions. The company's recent decision to terminate its Vox Royalty offtake agreement provides additional context. The transaction would enable management to evaluate stockpiling opportunities in anticipation of Lone Tree's commissioning. The stockpile, therefore, appears to be connected to a broader operating strategy rather than simply a byproduct of processing schedules.

The importance of optionality increases when a company is transitioning from a third-party processing model toward owner-operated infrastructure. In that environment, inventory serves as a bridge between current operations and future processing capacity, allowing management to retain flexibility in future recovery outcomes.

Recovery Economics Support Deferred Processing

The economic rationale for stockpiling begins with the difference between current payability and targeted future recovery. Company disclosures indicate that refractory material processed through third-party arrangements currently has a payability factor of 55% to 60%. Under the planned Lone Tree operating model, owner-operated pressure oxidation (POX) processing is expected to increase recovery to approximately 92%.

That differential does not imply that all material should be withheld from processing. However, it does create an incentive to evaluate whether selected material may generate greater value if processed through Lone Tree rather than through existing third-party arrangements. The strategic value of inventory, therefore, depends not only on grade but also on the recovery profile available when that material ultimately enters production.

Chawrun discussed the broader optimisation strategy:

“If you add them all, the final number we're chasing is about 500,000 to 600,000 ounces. And it varies year to year; it varies by grade and recovery, and we're evaluating ways to optimise this all the time.

The significance of that statement is management's focus on optimisation. The stockpile strategy can be interpreted as one component of that process because it preserves flexibility over how and when ore is processed while the company advances its long-term operating model.

Vox Agreement Removal Increases Commercial Flexibility

The Vox Royalty agreement required i-80 Gold to deliver up to 40,000 ounces of refined gold annually from Granite Creek and Ruby Hill through December 31, 2028. To terminate the agreement, the company issued approximately 3.45 million common shares to settle an obligation valued at approximately US$4.8 million.

The transaction's significance extends beyond the settlement itself. Fixed delivery commitments can influence processing decisions because production obligations must be satisfied regardless of whether alternative processing pathways may offer superior economics. Removing those obligations increases management's discretion over inventory allocation and processing timing.

The timing of the termination is particularly notable because it coincided with management's stated intention to evaluate opportunities for stockpiling. The move aligns commercial obligations with the operational flexibility required to manage inventory during the period leading up to Lone Tree commissioning.

Capital Position Supports Strategy Execution

A stockpile strategy only creates value if a future processing destination exists. The Lone Tree refurbishment project represents that destination. An engineering study completed during the fourth quarter of 2025 estimated refurbishment capital requirements of approximately US$430 million. The study was completed to an Association for the Advancement of Cost Engineering (AACE) Class 3 level and incorporated approximately 14,000 individual cost line items.

The company also reported US$513.5 million in cash and cash equivalents as of March 31, 2026. The relationship between those figures is significant because it links inventory accumulation with a funded development plan intended to provide future processing capacity.

Chawrun commented on the significance of the company's recapitalisation efforts:

"So, this is what launches i-80 into the next level, right? We did the equity raised last year, we raised this amount of capital, and what this does for us is, first of all, to be able to put this project together."

The implication is that the stockpile's value depends primarily on execution rather than financing. Inventory accumulation becomes more meaningful when paired with a funded pathway toward owner-operated processing infrastructure.

Valuation Implications Of The Transition Period

The transition period between the current third-party processing and the targeted Lone Tree commissioning introduces several measurable execution indicators. One of the most direct indicators will be changes in the sulphide stockpile reported in future operating updates. Continued growth would indicate that material is being accumulated ahead of future processing, while reductions could indicate inventory is entering existing processing arrangements.

Additional milestones include the Granite Creek Underground Feasibility Study and Cove Underground Feasibility Study, targeted for the third quarter of 2026, followed by the Archimedes Underground Feasibility Study, targeted for late first quarter 2027. These studies are expected to provide additional detail regarding future mine plans and potential feed sources for the Lone Tree complex.

The broader development timeline remains unchanged. The company is targeting the commencement of the main Lone Tree construction during the second half of 2026 and a first gold pour in late 2027. Within that framework, the sulphide stockpile serves as a visible indicator of how management is balancing inventory accumulation, processing flexibility and long-term recovery economics during the transition toward owner-operated operations.

Investment Thesis for i-80 Gold

• The sulphide stockpile represents an inventory management strategy designed to preserve future processing optionality rather than accelerate current production.
• The termination of the Vox Royalty agreement removed fixed delivery obligations that could otherwise constrain management's ability to determine when material enters processing circuits.
• The economic rationale for stockpiling is supported by the gap between current third-party payability factors of 55% to 60% and the approximately 92% recovery targeted through owner-operated processing.
• The reported cash position of US$513.5 million and the estimated US$430 million refurbishment cost connect accumulated inventory with a defined future processing destination.
• Execution of the strategy depends on the advancement of Lone Tree construction, feasibility study milestones, and commissioning timelines, rather than on additional funding requirements identified in current disclosures.

The central investment question is not whether ore is being mined, but whether inventory accumulated during the transition period can ultimately be processed under a higher-value recovery profile once Lone Tree enters operation.

TL;DR

i-80 Gold's termination of its Vox Royalty offtake agreement and accumulation of approximately 4,000 ounces of recoverable gold within a sulphide stockpile indicate a strategy focused on preserving future processing flexibility. The economic rationale is supported by the difference between current third-party payability factors of 55% to 60% and the approximately 92% recovery targeted by Lone Tree's planned owner-operated processing circuit. The strategy's success depends on the advancement of Lone Tree construction, feasibility studies and commissioning milestones.

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