i-80 Gold's Granite Creek Underground Project Shows Strong Economics with $118M NPV at $2,750/oz Gold

  • i-80 Gold's Granite Creek Underground project shows robust economics with an after-tax NPV of $118M at a gold price of $2,750/oz, increasing to $598M at $4,500/oz.
  • Initial proven and probable mineral reserves stand at 2.20 million tonnes grading 7.87 g/t gold, containing 556,500 ounces of gold.
  • Measured and indicated mineral resources increased by 229% to 3.73 million tonnes grading 7.17 g/t gold, with inferred resources decreasing by 38% to 0.89 million tonnes.
  • The project has an estimated mine life of approximately 8.5 years with annual gold production of approximately 75,000 ounces from 2028 to 2032.
  • Estimated cash costs are $1,827/oz and all-in sustaining costs are $1,915/oz for the five-year steady-state period following the commissioning of the Lone Tree Plant.

i-80 Gold's Granite Creek Underground project represents a strategic asset in Nevada's prolific gold-producing trends, positioning the company to become a mid-tier producer. The project's robust economics and potential for further resource growth align with the company's goal of leveraging its central processing facility to maximize efficiency and growth. The success of this project will be crucial in i-80 Gold's transformation into a Nevada-focused mid-tier gold producer.

Resource Growth
The ongoing 2026 exploration program and the anticipated multi-year drill program starting in 2027 could further expand the mineral resource base, potentially extending the mine life beyond the current 8.5-year projection.
Processing Efficiency
The shift to processing ore through the Lone Tree Plant post-2027 is expected to reduce reliance on third-party processing and lower costs, but the success of this transition will be critical to the project's economic viability.
Gold Price Sensitivity
The project's economics are highly leveraged to the gold price, with NPV increasing significantly at higher gold prices. The sustainability of these higher prices will be a key factor in the project's long-term success.