The Porvenir, Leticia, and San Antonio deposits are within the Constancia Group. The majority of mineralization within the concession area consists of volcanic hosted gold-silver ± copper, lead, and zinc epithermal quartz veins of intermediate sulphidation type. There is a vertical zonation of metals, and base metal contents are higher at depth, although, in general, gold grades appear to stay constant except in those areas near surface where residual gold has been liberated by the oxidation of pyrite and weathering/disintegration of host rock. The epithermal veins at Bonanza are characterized by moderate to intense propylitic alteration of the andesite wall rocks locally accompanied by argillic alteration and silicification. There are several variations in style of mineralization among the veins. In the Bonanza district, all of the veins are interpreted to lie in the middle to deeper levels of an epithermal system. On the basis of base metal content, the Porvenir, Leticia and San Antonio veins in the Constancia Group are interpreted to be deeper relative to the Pioneer and Panama groups. The Porvenir gold vein system comprises five main veins, part of the Constancia Group. The five main veins at Porvenir are Porvenir Norte, Oro Fino, Real McKoy, Elena, and Porvenir Sur.

The Porvenir Project will be a stand-alone mining operation with its own processing plant and infrastructure. The deposit is able to support a production rate of 2,000 tpd and mining plans are based upon underground trackless mechanized mining and truck haulage from the mine to a plant to be built at Porvenir. Following Mineros practice at the other Hemco mines, mine development, drilling, blasting, loading, and haulage will be done by contractors.

The Project has been split into three zones:
• Porvenir Norte is the largest zone by tonnage; the zone is up to 1,000 m along strike and 3.3 m to 30 m thick (14.2 m average) extending from the 0 m level to the 370 m level.
• Porvenir Sur is the second largest zone and is up to 600 m long on strike and 4.4 m to 15.9 m thick (10.7 m average) extending from the 150 level to the 430 m level.
• Real McKoy is the smallest tonnage but highest gold grade and highest NSR/t zone. It is up to 600 m long on strike and 0.5 m to 3.1 m thick (1.7 m average) extending from the 170 level to the 415 m level.

There is a portion between the Porvenir Norte and Porvenir Sur which has been mined by others and has been excluded from the Mineral Reserve estimate. Similarly, the uppermost areas which have been exploited by artisanal miners are not included in the reserves.

Mine Design
The Porvenir deposit is located within a hill and there is ready access to the deposit using drifts driven from surface. ........

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