Osisko Development Proposes Name Change and New Board Nominee

Osisko Development Corp. is proposing to change its corporate name to Osisko Gold Group Inc. at its upcoming annual and special meeting of shareholders on June 23, 2026. The company stated the change aims to better reflect its focus on gold and precious metals assets in North America.

Additionally, the company has nominated Keith McKay to join its Board of Directors. McKay is a chartered professional accountant with over 45 years of experience in finance and executive leadership, primarily in the mining and natural resources sector. His background includes extensive expertise in public company reporting, financing, mergers and acquisitions, and governance.

McKay's nomination comes as non-executive director Duncan Middlemiss will not stand for re-election. The proposed name change is intended to align with the company's continued development of its Cariboo Gold Project in British Columbia. This project is the company's flagship asset, and Osisko Development aims to become an intermediate gold producer through its advancement.

Osisko Development Corp. focuses on developing past-producing mining camps with district-scale potential across North America. In addition to the Cariboo Gold Project, the company also holds the Tintic Project in Utah, U.S.A. The company emphasizes a disciplined approach to capital allocation and risk management in developing its assets.