The Tocantinzinho deposit is best classified as a granite-hosted, intrusion-related gold deposit. Intrusion related gold deposits were defined by Thompson et al. (1998) with the following characteristics:
• Deposits hosted within or zoned proximal to intermediate to felsic granitic rocks.
• Intrusions are typically moderately reduced to moderately oxidized (ilmenite through to magnetite series) I-type granitic rocks.
• The associated pathfinder elements are typically Bi, Te, Mo, W in the core of the intrusion system, zoning outward to distal As, Sb, Pb and Zn.
• The deposits have a range in styles including sheeted, breccia, stockwork, flat-vein and disseminated to greisen that is controlled by proximity to intrusions, depth of emplacement and structural controls on intrusions.
• Mineralization is coeval with the related intrusions demonstrated through zonation with respect to the causative intrusion and mineralized magmatic-hydrothermal transition textures. These may include miarolitic cavities, vein dykes, unidirectional solidification textures, brain rock, and granitefacies control on gold distribution. In addition, age dating in global examples has confirmed synchroneity between intrusions and mineralization.
• Mineralization is typically characterized by reduced, low sulfide (< 2%) ore assemblages including pyrite, pyrrhotite and arsenopyrite with magnetite less common and hematite rare. Proximal gold is typically high fineness ........

Mining will be carried out using conventional open pit techniques with 10 m benches. An Owner mined open pit operation is planned with hydraulic shovels and mining trucks, including outsourcing of certain support activities such as blasting.

Production drilling of the 10 m benches will be by blast hole drill rigs with both rotary and down-the-hole (“DTH”) drilling capability. Blast holes are loaded with bulk emulsion. The majority of the loading in the pit will be carried out by two 16.5 m3 hydraulic face shovels, one 17 m3 hydraulic excavator, and one 10.5 m3 front-end wheel loader. The shovels and loader will be matched with a fleet of 92.5 t payload mine trucks.

Mining of the Tocantinzinho main pit will occur in three main phases preceded by a starter pit. Waste rock will be disposed of in two distinct waste dumps. The main waste dump will be located near the pit and the other waste dump will be located downstream of the flotation tailings dam. This second dump is an option to increase long-term safety factor of the dam. The open pit generates 163.4 Mt of waste rock and 48.7 Mt of ore, inclusive of historic tailings, over the life of mine (“LOM”) for an average LOM strip ratio of 3.36:1.

Mining activities are planned over a duration of 11 years which includes two (2) years of pre-production mining. Once the open pit is depleted and mining activities are stopped stockpile reclaim continues for another 1.5 years to continue feeding the mi ........

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