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Osisko Drills More High Grades Across Windfall ... Guide

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)

Full-scale construction of the processing plant is slated to take 18–24 months. 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. As of April 2026, the has transitioned from

The project is currently in the , with Gold Fields aiming for aggressive development timelines: As of April 2026