The Property contains “Sedex-Type” stratabound zinc-lead mineralization hosted by calcsilicate rocks, which have been intruded by pegmatite dykes and sills. The main deposit, which has been the historical focus of exploration on the Property is known as the E Zone.

Mineralization at Ruddock Creek consists of a conformable planar massive sulphide horizon, exposed intermittently for over 5 kilometres along strike. The Ruddock Creek Sulphide Horizon consists dominantly of calc-silicate rocks, pegmatites and lesser biotite schist. Lenses of massive sulphide, composed of sphalerite, pyrrhotite and galena in order of abundance are hosted by the calc-silicate portions of the package. The Ruddock Creek Sulphide Horizon varies from less than 5 m to over 50 m in true thickness. Massive sulphide lenses consist of sphalerite, pyrrhotite, galena, pyrite and minor chalcopyrite, and are generally medium grained.

The Ruddock Creek Sulphide Horizon consists dominantly of calc-silicate rocks, pegmatites and lesser biotite schist. Lenses of massive sulphide, composed of sphalerite, pyrrhotite and galena in order of abundance are hosted by the calc-silicate portions of the package. The Ruddock Creek Sulphide Horizon varies from less than 5 m to over 50 m in true thickness. Massive sulphide lenses consist of sphalerite, pyrrhotite, galena, pyrite and minor chalcopyrite, and are generally medium grained. The coarser grain size is thought to be a result of recrystallization d ........

The Project consists of four ore zones (or underground workings) referred to as:
- Upper E;
- Lower E;
- Creek; and
- V-Zone.

Access to the underground workings will be by level entry adits using five separate portals for the extraction of ore from the four zones. Step room and pillar mining will be used in stopes with an ore thickness less than 6 m. All other ore will be mined using longhole stoping methods.

For step room and pillar mining, an initial ore drift will be driven parallel to the strike of the orebody for the extent of the stope, exposing the hanging wall. A second parallel drift will then be slashed beside initial drift, stepped down in elevation to follow the contact. A third drift will then be slashed down-dip, widening to the maximum allowable span. This pattern will then be repeated, nominally every 8 vertical metres of the ore body. Mining will generally proceed on an up-dip direction. The stopes that remain from step room and pillar mining will be backfilled with paste backfill after the completion of mining in the area.

For longhole stope mining, stope accesses will be located in the center of the ore body. An ore sill will be driven on each the upper and lower levels of each stope to the extents of mining, exposing the full width of mineralization. These will be nominally sized at 6 to 10 m wide by 5 m high so that drill holes can be located on the hanging wall and footwall contacts.

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The processing of ore mined from the underground workings into lead (Pb) concentrate and zinc (Zn) concentrate involves five key steps:
• Underground crushing and conveying;
• Tertiary crushing and dense media separation;
• Primary grinding;
• Pb flotation circuit; and
• Zn flotation circuit.

The Pb concentrate is also anticipated to contain small quantities of silver (Ag), so it is sometimes referred to as Pb + Ag concentrate.

An additional step, the pyrrhotite flotation system, will separate the PAG fraction of the tailings stream from the NAG fraction. Pyrrhotite (Fe(1-x)S (x = 0 to 0.2)) is also called magnetic pyrite because the color is similar to pyrite and it is weakly magnetic.

The Pb flotation circuit will consist of mechanical rougher flotation cells that make up the rougher circuit. A collector and frother will be added to the slurry from the primary grinding circuit prior to being fed to the rougher circuit to incr ........