SAN ANTONIO GOLD PROJECT

Project Description

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The San Antonio Gold Project is a past producing mine that went into receivership as an oxide copper mine. The gold potential of the asset has never been properly evaluated, and Osisko Development will focus on amending existing permits to transition the mine production to a gold heap leach operation. There is also significant exploration potential to expand both oxide and sulphide resources. Recent metallurgical testing has shown that the sulphide resources are highly-amenable to heap leaching.

San Antonio Gold Project Highlights

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Primary Commodity:	Gold
Location:	Sonora, Mexico Located 160 km from airport and towns of Hermosillo and Obregon
Land Package:	11,338 ha of mineral rights
Status:	Development Permitted for mining (permit amendment for gold in progress)
Anticipated Production:	Initial production targeted between 50-70 koz Au per year

The Company cautions that the decision to process the stockpile at Sapuchi Minera has been taken without the benefit of a feasibility study, or reported mineral resources or mineral reserves, demonstrating economic and technical viability, and, as a result there may be increased uncertainty of achieving any particular level of recovery of material or the cost of such recovery. The Company cautions that historically, such projects have a much higher risk of economic and technical failure. There is no guarantee that production will continue as anticipated or at all or that anticipated production costs will be achieved. The failure to continue production would have a material adverse impact on the Company’s ability to generate revenue and cash flow to fund operations. Failure to achieve the anticipated production costs would have a material adverse impact on the Company’s cash flow and potential profitability. The Company cautions that historically, such projects have a much higher economic or technical risks. In continuing current operations at Sapuchi Minera, the Company will not be basing its decision to continue such operations on a feasibility study, or reported mineral resources or mineral reserves demonstrating economic and technical viability.