The La Mina Project lies within the Middle Cauca Belt of Miocene-age volcano-plutonic rocks of central Colombia. This belt hosts several significant porphyry gold or copper-gold disseminated deposits such as La Colosa, Titiribí, Quebradona, and Quinchia, as well as large epithermal gold districts such as Marmato.

Localized intrusive centers (e.g., La Cantera, Middle Zone, El Limon, and La Garrucha) comprise a series of intermediate composition porphyries and related intrusive (emplacement) breccias.

LA CANTERA PROSPECT
The principal ore minerals associated with the Au-Cu porphyry mineralization at La Mina are chalcopyrite and lesser bornite, both with associated gold mineralization. Secondary copper minerals (chalcocite, azurite, malachite and chrysocolla) do occur locally in the upper portions of the La Cantera prospect. Overall gold mineralization greater than 0.3 g/t Au is sulfide-poor and typically contains less than 1% total sulfides. In this type of mineralization chalcopyrite ± bornite are more abundant than pyrite.

MIDDLE ZONE PROSPECT
The principal ore minerals associated with the Au-Cu porphyry mineralization at Middle Zone consist of chalcopyrite, pyrite, and, in very rare cases, bornite. Secondary copper minerals (chalcocite, cuprite, malachite and chrysocolla) do occur locally in the shallow portions at Middle Zone prospect; they represent supergene alteration of primary hypogene copper mineralization. Generally, gold mineralization greater than 0.3 g/t Au occurs with sulfides, but total sulfide content is normally less than 3% (with pyrite > chalcopyrite).

LA GARRUCHA PROSPECT
The principal ore minerals associated with the Au-Cu porphyry mineralization at La Garrucha consist of chalcopyrite and lesser amounts of bornite. Secondary copper minerals(chalcocite, cuprite, malachite and chrysocolla) do occur locally in the shallow portions at La Garrucha but are rare and do not account for significant Au-Cu values volumetrically. Pyrite mineralization for the most part islow at La Garrucha except where secondary QSP alteration has overprinted magnetite. Typically, the total sulphide content of the gold-copper zone at La Garrucha is less than 2% whereas the magnetite content averages approximately 3-5%.

EL LIMON PROSPECT
Gold-copper mineralization at El Limon is sporadic and associated with the L2 porphyry event and the strong potassic alteration (potassium feldspar-magnetite and biotite-magnetite) event cutting the L1 porphyry at depth in drill holes LMDDH-021 and 030. Mineralization in the potassic zones of LMDDH-021 and 030 is comprised of chalcopyrite disseminations in weakly developed quartz and quartz-magnetite veins. Mineralization in the L2 porphyry and associated L2 breccia of small amounts of chalcopyrite within quartz veins, quartz-magnetite veins, magnetite veins and fine-grained disseminations in the porphyry.

The La Mina Property hosts copper-gold mineralization associated with sub-volcanic porphyry stocks intruding a late Miocene-age volcanic-sedimentary sequence of the Combia Formation. These rocks are related to an extensive magmatic arc that developed along the northern South American plate margin (the Chocó block margin).

Porphyry deposits are typically large low- or medium-grade deposits usually associated with a combination of gold, copper, plus other base metals. Porphyry deposits occur in a variety of tectonic settings; along the South American Andes Mountains they can be related to the roots of andesitic stratovolcanoes along subduction zones as well as continental-island arc settings. While some older examples of porphyries are known, most are associated with young, Tertiary-aged volcanic-igneousrocks. However, mineralization can extend into the surrounding sedimentary or volcanic host rocks.

Mineralization can occur in various styles and many combinations of disseminations, veins, stockwork, fractures, and breccias. As in the case of La Mina, multi-phase intrusions and inter-mineral phases are important factors in assessing porphyries, along with their wall-rock conditions, host rocks, structural conduits, and various chemical parameters (pH, water content, etc.).

According to PEA evaluates conventional surface mining methods using surface drill and blast techniques with off-highway haul trucks and front-end loaders to be appropriate for the La Mina Project.

A 24-month stripping campaign is estimated and scheduled before the mine starts producing mineralized material for the process plant. It is anticipated that these activities will be performed by third-party contractors. The initial stripping phase of the mine plan is comprised of steep terrain that will require smaller equipment and will be slower than production mining activities. No mineralized material is expected during the stripping campaign; however, any mineralized material encountered will be stockpiled near the process plant.

After the 24-month stripping campaign, production mining begins at a rate of 46k tonnes per day, delivering and sustaining 10k tonnes per day of mineralized material to the process plant for 10 years.

During the first 3 years, most of the process plant feed comes from the Middle Zone pit, while enabling La Cantera to be prepared as it has a higher strip ratio. Starting in year 4, the core of the Middle Zone pit mineralized zone is exposed and becomes the primary source for process plant feed for years 4 through 9, leaving La Cantera idle until the last 2 years of mining.

Once the mine operation is in full production in year 1, it is estimated all material will be drilled and blasted prior to loading into haul trucks.

The mining fleet is expected to utilize two, 12.3 cubic meter front-end wheeled loaders. These will load fourteen 91 tonne capacity haul trucks at the peak of mine production. As the pits deepen and haul distances extend, the number of haul trucks required will increase. In later years, as the strip ratio drops and fewer tonnes are mined, the requirement for haul trucks relaxes.

- subscription is required.

It is proposed that mineralized material from the La Cantera and the Middle Zone open pits will be processed in a 10,000 tonnes per day (tpd) conventional concentrator to produce a copper concentrate with gold as a by-product. The unit processes are described as follows:
- Crushing and grinding to liberate minerals from the ore;
- Froth flotation to separate most of the copper and gold bearing minerals from gangue minerals;
- Facilities to pump tailings to the tailings storage facility and to pump reclaim water from the tailings dam to the plant for the process;
- Concentrate dewatering, materials handling and storage facilities.

FLOTATION AND REGRIND
Grinding cyclone overflow from the ball mills will report to the rougher flotation cells. It is envisioned that one bank of 75 m3 tank cells will provide approximately 30 minutes of residence time. Frother and collector may be added to individual cells at the first and sixth cells. Tailings from the rou ........