Osisko Metals Establishes a Technical Consultation Committee to Develop the Pit Dewatering Plan for Gaspé Copper

MONTREAL, Feb. 27, 2024 (GLOBE NEWSWIRE) -- Osisko Metals Incorporated (the "Company" or "Osisko Metals") (TSX-V: OM; OTCQX: OMZNF; FRANKFURT: 0B51) is pleased to announce the creation of a technical consultation committee to assist in developing a plan for the dewatering of the Mount Copper open pit at Gaspé Copper, located close to Murdochville in the Gaspé region of Quebec. The committee is led by Osisko Metals’ newly-hired VP Environment and Sustainable Development, Dr. Ann Lamontagne (see below).

Since closure and remediation of the former Gaspé Copper mine site, the Mount Copper open pit has flooded. In order to evaluate the viability of restarting open pit mining operations at Gaspé Copper, the pit must be dewatered as soon as possible to allow for improved deeper in-pit resource evaluation and geotechnical drilling. Osisko Metals is committed to doing so in a responsible manner that is inclusive of environmental factors and key stakeholders in the region. Following ongoing environmental and engineering studies, Osisko Metals will elaborate a plan in collaboration with the committee and will then go through necessary steps to obtain permits from government authorities.

The consultation and technical committee is composed of professionals from various organizations, including:

• The Secretariat of the Mi’gmawei Mawiomi First Nation;
• The Société de gestion des rivières de Gaspé;
• The Conseil de l’eau du Nord de la Gaspésie;
• The Conseil Régional de l’environnement de la Gaspésie;
• A biologist who is a citizen of Murdochville
  

Osisko Metals' initiative to create the committee was met with positive feedback from members of the committee, and a first working session was held in December 2023. Further meetings with the committee are planned for 2024 to allow for review of the dewatering plan et receive comments before the plan is submitted to governmental authorities. The plan will be made public in order to inform the local population of mitigation measures that will be implemented.

Nomination of Dr. Ann Lamontagne as Vice-President, Environment and Sustainable Development

Osisko Metals is pleased to announce the nomination of Ann Lamontagne, ing., PhD., as Vice-President, Environment and Sustainable Development. Dr. Lamontagne is a civil engineer who obtained her doctoral degree in Mining Environment from Laval University in 2001. She has worked in the mining industry for over 25 years as a consultant for geotechnical, water management, hydrogeology, and environmental projects. She has been involved in the development of several mining projects where her expertise has been invaluable in minimizing environmental risks throughout the mine planning process, from initial design through to closure and reclamation. Dr. Lamontagne has also been involved in many R&D projects with mining companies, including Nouveau Monde Graphite, Troilus Gold and Mason Graphite.