O3 Mining 

O3 Mining Inc. engages in the acquisition, exploration, and development of precious metal resource properties in Canada. The company primarily explores for gold deposits. Its flagship property is the Marban Alliance property with 65 mining claims covering 2,189 hectares located in the western portion of the province of Québec, Canada. The company is headquartered in Toronto, Canada. As of March 18, 2025, O3 Mining Inc. operates as a subsidiary of Agnico Eagle Mines Limited.