O3 Mining Inc. is a Canada-based mineral exploration company. The Company is focused on the acquisition, exploration, and development of precious metal resource properties in Canada and is primarily focused on Quebec. Its flagship properties include the Marban Property and the Alpha Property. The Company's 100% owned Marban Project is located approximately 15 kilometers west of the town of Val-d'Or in the Abitibi-Temiscamingue region of Quebec, Canada. It consists of approximately 30 mining claims and three mining concessions, covering approximately 1,023 hectares. The Alpha property is located eight kilometers east of Val-d'Or, Quebec, and three kilometers south of the El Dorado South Lamaque Mine. The property covers approximately 7,754 hectares and includes 20 kilometers of the prolific Cadillac Break. It also has additional projects in the Labrador and Abitibi areas of Quebec, which include Sleepy, Gwillim, Matachewan-Wydee, Harricana and other properties.