NYSE- and TSX-V-listed Osisko Development has reported that COO Éric Tremblay is leaving the company, effective immediately, to pursue other professional commitments in the mining sector.

The company says it has initiated an executive search process for the COO role, and will provide an update in due course.

Recently appointed project development VP David Rouleau will provide senior leadership support during the transition period until a permanent COO is appointed. He will take an active role in advancing operational readiness efforts for the Cariboo gold project, in central British Columbia, Canada.

"We are excited to welcome Dave to our team, who brings a wealth of operational and leadership experience over his more than 35-year professional career in the mining sector and he will be a vital asset as we advance activities at Cariboo in 2025 and beyond," says Osisko founder, chairperson and CEO Sean Roosen.

"On behalf of management and the board, I would also like to extend our thanks to Éric for his dedicated service and invaluable contributions to the company during his tenure. We wish him all the best and every success in his personal and professional endeavours."

The company describes Rouleau as a “seasoned executive” with over 35 years of operational and management experience in the mining industry.

His experience spans across projects and operations at various stages of growth including feasibility studies, environmental assessments, permitting, construction, start-up, expansion and continuous improvement settings.

Most recently, Rouleau served as Victoria Gold mine optimisation and strategic planning VP where he oversaw the Brewery Creek Project and supported business development initiatives in assessing mining and exploration projects.

Earlier, he worked in British Columbia's Cariboo Regional District as operations VP for Barkerville gold mines and at Taseko Mines responsible for the Gibraltar mine.

Rouleau was also a key member of the Canadian Natural Resources senior management team developing the Horizon Oil Sands project in Fort McMurray, Alberta.

Additionally, Rouleau spent 17 years with Teck Cominco in various operational and engineering roles across multiple mine sites.