Osisko Gold Group (OGG) Investor presentation summary

Strategic vision and project overview

• Advancing the Cariboo Gold Project in British Columbia, a fully permitted, shovel-ready underground gold mine with a 10-year life and significant scalability potential.

• Cariboo Gold Project features 2.07 Moz probable reserves, 1.61 Moz measured & indicated resources, and 1.86 Moz inferred resources, with robust economics and expansion potential.

• The Tintic Project in Utah, USA, offers additional upside with high-grade gold and silver resources and ongoing exploration.

• Led by an experienced management team with a track record of successful mine development and stakeholder engagement.

• Focus on responsible mining, strong Indigenous and community relations, and sustainable practices.

Financial strength and project financing

• Over US $1.1B raised since securing project financing, including $435M equity and $360M debt.

• Convertible senior notes of US $300M with a 4.125% coupon, 25% conversion premium, and capped call to mitigate dilution.

• Project debt financing includes an initial US $100M draw and a subsequent US $350M draw, with flexible terms and interest rates.

• Strong cash position ($594M) and market capitalization of C$1.15B as of July 2026.

• Flexible capital structure and broad institutional investor base, including significant support from major asset managers.

Cariboo Gold Project technical and economic highlights

• Feasibility study outlines 190 koz/year LOM average gold production (202 koz/year first 5 years), US $1,157/oz AISC, and 92.6% recovery.

• Initial capex of $881M (US $652M), after-tax NPV5% of $943M at US $2,400/oz gold, and IRR of 22.1%.

• Positioned in the lower half of the global gold cost curve, competitive with leading Canadian underground mines.

• Mine design features bulk tonnage long-hole mining, ore sorting, and a single processing facility with gravity and flotation circuits.

• Significant exploration and resource conversion potential, with mineralization open at depth and along strike.