The Copperwood Project consists of sediment- hosted stratiform copper deposits. Such deposits consist of copper and copper-iron sulfide minerals hosted by siliciclastic rocks in which a relatively thin (typically less than 3 m thick) copper-bearing zone is mostly conformable with stratification of the host sedimentary rocks. Copper occurs as disseminations and veins.

Mineralization
Mineralization is hosted within two sedimentary sequences termed the Lower Copper Bearing Sequence (“LCBS”) and Upper Copper Bearing Sequence (“UCBS”) at the base of the Nonesuch Formation.

The LCBS is composed of the Domino, Red Massive and the Gray Laminated units.

The UCBS is composed of the Upper Transition, Thinly, Brown Massive and Upper Zone of Values units.

The Domino is the main mineralized subunit, averaging 1.6 m in thickness, but thinning to about 0.5 m on the eastern edge of the Copperwood Deposit. Copper assays at Copperwood are remarkably consistent within individual units with mean copper grades of 2.58 wt.%, 0.39 wt.%, and 1.32 wt.% for the Domino, Red Massive and Gray Laminated subunits, respectively. The Red Laminated demonstrates a localized 1% increase in copper grades occurring at the base of the unit adjacent to the Gray Laminated. Silver is also present, with mean grades of 5.5 g/t.

Chalcocite is the only observed copper sulfide- bearing mineral at Copperwood, occurring principally as disseminations within shale ........

The proposed mining method for the Copperwood Project is conventional drill and blast room- and-pillar given the relatively sub-horizontal orebody that varies in thickness from 1.6 m to 3.7 m.

The method consists of the extraction of a series of entries and cross-cuts in the ore leaving pillars in place to support the back. The entries cross cuts and pillars are sized using a geotechnical analysis of the rock, and experience from other mines sharing similar ground conditions.

The Project’s mining equipment consists of a low-profile two-boom electric-hydraulic jumbo for drilling. A one-boom electric-hydraulic low-profile bolter is considered for the installation of ground support. A load haul dump (“LHD”) unit with a 10 t (6 yd3 ) capacity is planned for ore removal from the face and transport of the broken ore to a rock breaker- loading point. A rock breaker will reduce the size of larger particles in the blasted ore, which will be placed on a belt conveyor and transported to the surface crushed ore storage bins from which the mill is fed.

Main accesses and haulage of ore from certain distant working areas are developed using 30 t underground mining trucks to transport the ore to the rock breaker or to the surface stockpile. A mix of ANFO and emulsion explosives are used for blasting to reduce the excavation overbreak. The rooms are mined with a single pass approach, such that the pillars will immediately have their final dimensions. This ap ........

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