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Osisko Development: Sean Roosen Outlines Massive Caribou Gold Project and Path to Production with Rick Rule
In a wide-ranging interview at the 2026 Rule Natural Resources Investment Symposium, Rick Rule sat down with Sean Roosen, CEO of Osisko Development (TSX: ODV, NYSE: ODV). Roosen, a veteran mining executive with a track record of delivering billions in shareholder value — including the Canadian Malartic mine sold to Agnico Eagle for $4.1 billion — provided a detailed update on Osisko Development’s flagship Caribou Gold project in British Columbia. The discussion highlighted why Osisko Development stands out among junior gold miners and Canadian gold stocks: a fully permitted, construction-ready gold project with substantial scale, strong financing, and meaningful exploration upside in a stable jurisdiction.
Osisko Development’s Track Record and Current Focus
Sean Roosen has built an impressive legacy in the Canadian mining sector. Under his leadership, Osisko Gold Royalties grew from a $500 million market cap to over $10–11 billion. The team has delivered approximately $20 billion in shareholder value across multiple companies over two decades. Now fully focused on Osisko Development since 2023, Roosen is advancing the Caribou Gold project, which he describes as a district-scale opportunity with exceptional potential.
The project benefits from:
Excellent infrastructure, including access to low-cost BC Hydro power at approximately 5–6.6 cents per kWh.
A fully permitted 200,000 ounce per year underground mine with clear expansion potential.
Significant copper by-product credits that enhance project economics.
A large land package with over 80 km of strike length, of which only a small portion has been intensively drilled.
Project Economics and Development Status
The updated feasibility study (released in spring 2025) outlines robust economics at current gold prices:
Initial production target of 200,000 ounces per year.
Strong net present value (NPV) at $4,500 gold of approximately $3.2 billion.
Capital intensity that meets or exceeds industry benchmarks for attractiveness.
Phase 1 capital requirement of US$653 million.
Osisko Development has already raised $885 million USD in equity and project finance, putting the company in a very strong financial position. This includes a recent $143 million raise in January 2026. The company remains approximately $200 million over-funded relative to the feasibility study capex and has $350 million in additional committed financing available at final investment decision (FID), expected this summer.
Construction is well underway:
Underground development has advanced 2.2 km.
Camp capacity expanded to 270 people.
Water treatment, temporary power, and waste management infrastructure nearing completion.
Mill equipment (purchased years ago and stored) is being delivered to site.
Exploration Upside and District Potential
Roosen emphasized the significant exploration potential at Caribou. The current feasibility is based on approximately 2 million ounces of reserves, with an additional 3.6 million ounces in measured, indicated, and inferred categories. However, the total strike length of the mineralized system is roughly 80 km, of which only about 4.4 km has been drilled in detail.
Key exploration catalysts include:
Resource conversion drilling within the existing mine plan aimed at potentially doubling reserves.
Depth extension drilling below the current 1,000 ft (350 m) level — fully permitted to greater depths.
The Proserpine target, a new discovery 4 km from the main deposit with similar mineralization style and a strike length of approximately 6 km.
Roosen noted the team is running 11 drills on site and plans to increase to 20, following his philosophy of “shut up and drill” (and if needed, “shut up and drill some more”).
Why This Story Fits the Current Market
Roosen believes the Caribou project is ideally suited for today’s environment:
Strong gold prices provide excellent margins and flexibility.
Fully permitted status removes a major de-risking hurdle.
Substantial financing already secured reduces equity dilution risk.
Location in British Columbia offers infrastructure advantages and access to low-cost power.
District-scale potential offers long-term production growth and mine life extension.
For investors in junior gold stocks and Canadian gold stocks, Osisko Development offers a rare combination of near-term production, exploration torque, and strong financial backing.
Outlook and Next Catalysts
Roosen outlined four main near-term catalysts for Osisko Development:
Continued construction milestones at Caribou.
Resource conversion drilling results.
Depth extension and new discovery drilling at Proserpine.
Final Investment Decision and project financing drawdown this summer.
With strong financing in place and multiple drills turning, Osisko Development is well-positioned to deliver consistent news flow throughout 2026 and beyond.
Conclusion
Sean Roosen’s update with Rick Rule underscores why Osisko Development stands out among junior gold miners and gold exploration stocks. The combination of a permitted, construction-ready project, strong financing, significant exploration upside, and a supportive gold price environment creates a compelling setup for long-term value creation. For investors interested in gold mining stocks, gold stocks to buy, and high-quality Canadian gold stocks, Osisko Development represents a story with clear de-risking milestones and substantial upside potential as the Caribou project advances toward production in 2028.
Sources:
Osisko Development corporate presentations and feasibility study (2025–2026)
Interview between Sean Roosen and Rick Rule at the 2026 Rule Natural Resources Investment Symposium
Public data on Quebec and British Columbia gold mining districts
Industry reports on junior gold sector and mining M&A trends (as of May 2026)
This article reflects information publicly available as of May 20, 2026. Project development, drilling results, and commodity prices can change rapidly. Always verify the latest data directly from company disclosures and conduct independent due diligence before making investment decisions.
Author
Ben McGregor authors the Weekly Roundup at CanadianMiningReport.com, providing sharp analysis of the metals and mining sector. With a talent for spotting trends, Ben distills complex market shifts into clear, engaging insights on TSXV junior miners. His weekly updates cover gold, copper, uranium, and more, blending data-driven perspectives with a knack for identifying opportunities. A vital resource for investors, Ben’s work navigates the dynamic junior mining landscape with precision.