Osisko Gold Confirms Proserpine Discovery to Support Cariboo Expansion

• Osisko Gold Group confirmed high-grade gold structures at its Proserpine target, expanding the mineralized footprint and suggesting open-pit mining potential near its permitted Cariboo project.
• The initial drilling outlined a system measuring roughly one kilometer by half a kilometer, with all fourteen holes encountering mineralization from near surface to depths beyond 400 meters.
• Analysts emphasize the scale of the discovery, noting that while grades are exceptional, the target remains open in all directions, supporting future resource growth.
• Despite positive geological results, analyst sentiment remains neutral due to persistent losses and heavy cash burn, which imply ongoing funding needs.

Osisko Gold Group Inc. reported initial diamond drilling results from the Proserpine regional greenfield target, located approximately seven kilometers southeast of the Cariboo Gold deposit in central British Columbia. The program, which completed 6,463 meters in 14 holes between February and May 2026, confirmed high-grade gold structures and broader lower-grade zones. These findings suggest potential for open-pit mining operations, which could complement the planned underground mine at Cariboo.

Drilling expanded the known mineralized footprint at Proserpine to roughly one kilometer along strike by half a kilometer in width. Gold was encountered from near surface to depths beyond 400 meters, with the system remaining open in all directions. All holes that reached target depth intersected mineralization, providing a strong proof-of-concept for the target's potential.

How Does Proserpine Impact Cariboo's Long-Term Strategy?

Osisko has resumed drilling with three rigs and plans an additional 26,500 meters to increase drill density at Proserpine Southeast and begin first-pass drilling at Proserpine Northwest. This activity underscores the prospect of a sizeable new gold system close to its permitted Cariboo project. The discovery reinforces the long-term growth potential of the asset, with current resources totaling 1.61 million ounces in measured and indicated categories.

The Cariboo Gold Project is Osisko’s main development project, including a permitted underground mine and processing complex. A 2025 feasibility study envisions a scalable underground operation expected to produce about 1.89 million ounces of gold over a 10-year life. The Proserpine discovery offers a strategic extension, potentially enabling bulk mining methods alongside the underground operation.

National Bank Financial analyst Don DeMarco noted that the intercepts provide an encouraging proof-of-concept that Proserpine could become a meaningful contributor to future resource growth at Cariboo. While exceptional grades are noteworthy, the more important takeaway is the scale, where drilling has defined mineralization over only a small portion of a much larger target.

What Are the Financial Risks and Market Sentiment?

Osisko Gold is a Canadian gold mining and exploration company listed on the NYSE and TSXV, focusing on advancing its 100%-owned, permitted Cariboo Gold Project. The company targets both high-grade underground-style mineralization and potential open-pit, bulk mining opportunities. Operating within the broader Cariboo Gold Project property, Osisko is actively pursuing regional greenfield targets to expand its resource base and extend mine life.

Market sentiment reflects mixed signals. While the latest analyst rating on TSE:ODV stock is a Buy with a C$10.00 price target, TipRanks’ AI Analyst, Spark, rates ODV as Neutral. This score is held down primarily by persistent losses and heavy cash burn, which imply ongoing funding needs. Technicals add further pressure with a clear downtrend and weak momentum.

Valuation offers limited support because negative earnings make P/E difficult to interpret and no dividend yield is available. The company's stock surged 12.2% to $3.83, valuing the firm at roughly $1.2 billion, reflecting the value of this new growth vector for the company's primary asset. However, the financial reality of heavy cash burn remains a key concern for investors.

Osisko Gold Group announced that early drilling at its Proserpine target has outlined a new mineralized system with potential for open-pit mining. The initial results include standout intercepts such as hole PSP-26-004, which cut 4.6 meters grading 95.93 grams per tonne gold. This includes a high-grade interval of 873 grams per tonne gold over 50 centimeters, demonstrating the exceptional quality of the system.

President Chris Lodder stated that the results highlight a significant new gold mineralized system of scale. The drilled area measures approximately 1.0 km by 0.5 km within a larger 6.0 km by 1.0 km anomaly. For context, the currently defined Cariboo Gold deposit extends 4.0 km along strike by 0.5 km in width, underscoring the exploration potential at Proserpine.

The completion of the infill drill program at the Lowhee Zone validates existing geological and mine-planning assumptions for the Cariboo Gold Project. This confirmation supports the technical basis for the project's feasibility study and ongoing construction activities. Osisko Gold has also entered into a Support and Benefits Agreement with the District of Wells to facilitate the development of the Cariboo Gold Project.

This agreement is a key regulatory and social license step, ensuring local community support for the mine's construction and operation. The agreement outlines specific commitments regarding employment opportunities for local residents and contributions to community initiatives. By formalizing relationships with local stakeholders, Osisko Gold is mitigating regulatory and social risks associated with the project's advancement.