Osisko Development reports high-grade gold intercepts from Cariboo project drilling

Osisko Development Corp. has released new infill drilling results from its ongoing 13,000-meter program at the Cariboo Gold Project in British Columbia. The drilling, focused on the Lowhee Zone, aims to provide a more detailed understanding of the orebody's spatial controls and local variability.

Results have now been received for approximately 11,025 meters of drilling, representing about 80% of the planned program. Significant intercepts include 596.40 g/t gold over 2.0 meters, which contains a 0.5-meter interval grading 2,293.56 g/t gold. Other notable assays include 21.67 g/t gold over 3.5 meters.

The infill drilling program is anticipated to conclude in early Q2 2026. The company stated that the data generated will help refine resource modeling and production sequencing for the Lowhee Deposit. The tighter drill spacing is intended to enhance the understanding of vein corridor geometry and local grade variations.

Approximately 12.1 kilometers, or 88% of the total planned drilling, has now been completed. Final assay results and quality assurance/quality control reviews are pending for the remaining, unreported holes. Drilling activities were temporarily suspended following an incident reported on January 23, 2026.