Joe Mann - Doré Copper Mining Corp

Joe Mann

Location60 km south of Chibougamau, QC
Ownership100% interest
HistoryPast producing underground mine: 1.2 M oz at 8.26 g/t Au 0.25% Cu, from 1956 to 2007
CommoditiesGold and Copper
Current StatusAdvanced exploration
Mineral Resources 2021Inferred: 608,000 tonnes @ 6.78 g/t Au and 0.24% Cu, containing 133,000 contained ounces of gold


Dore Copper has acquired a 100% interest in the Joe Mann gold mine located 60 km by road south from the Company’s Copper Rand mill and 60 km south of Chibougamau, Québec. 

The Joe Mann mine operated in three phases for 27 years, between 1956 and 2007, and produced 1.2 million ounces of gold at a grade of 8.26 g/t Au, 607,000 ounces of silver at a grade of 5 g/t Ag, and 28.7 million pounds of copper at a grade of 0.25% Cu.

In late 2020, Dore Copper completed 8,343 metres of drilling on the Joe Mann property. The results confirmed the high-grade downdip extension of the West Zone and the continuity of the Main Zone below the underground workings of the Joe Mann mine, and highlighted the high-grade potential of the Far West Zone. 

The Corporation reported a NI 43-101 mineral resource estimate (“MRE”) on July 28, 2021 and filed a Technical Report on September 10, 2021. The MRE was unchanged for the preliminary economic assessment (“PEA”).

Dore Copper completed a PEA in May 2022. The PEA contemplates the re-development plan of a hub-and-spoke operation model with Corner Bay as the main feed to the Corporation’s centralized Copper Rand mill, supplemented by the Devlin and Joe Mann deposits. Once the Devlin deposit is mined out (approximately 4 years), production at the Joe Mann mine would start and be funded out of cash flow from operations. Joe Mann benefits from an existing headframe and shaft, including all surface infrastructures.





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