Osisko Drills More High Grades Across Windfall ... Apr 2026

Windfall is ranked as a top 10 gold deposit globally by head grade, with reserves averaging 8.1 g/t gold .

Final environmental approvals and a formal Board Investment Decision (FID) are expected in the second half of 2025 or early 2026. Osisko drills more high grades across Windfall ...

The feasibility study projected an All-In Sustaining Cost ( AISC ) of approximately US$758–$760 per ounce , positioning it as one of the lowest-cost mines in Canada. Windfall is ranked as a top 10 gold

As of April 2026, the has transitioned from an exploration-focused play to a high-priority development asset under the full ownership of Gold Fields , which completed a $2.1 billion acquisition of Osisko Mining in October 2024. While the project is moving toward construction, drilling continues to yield the "bonanza" grades that made the deposit famous. Latest Drilling & Exploration Highlights (Early 2026) As of April 2026, the has transitioned from

Continued expansion drilling outside of the existing Mineral Resource Estimate (MRE) blocks has confirmed the presence of new high-grade mineralization that remains open for further growth.

Full-scale construction of the processing plant is slated to take 18–24 months.