Osisko Gold's Cariboo project reaches 28% completion

• Osisko Gold's Cariboo project remains on schedule for first gold in Q1 2029, with commercial production in H2 2029.
• Construction was approximately 28% complete as of September 30, 2026, based on cumulative costs of CAD 355 million.
• Estimated remaining construction costs total approximately CAD 907 million, net of leases and estimated pre-production revenue.
• Detailed engineering is approximately 42% complete, with more than 50% of procurement packages awarded.
• Underground development is expected to reach 360 meters monthly by year-end 2026, down from 500 meters previously, reflecting slower Valley portal excavation.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Osisko Gold Group Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001171843-26-006836), on October 27, 2026, and is solely responsible for the information contained therein.