Miguel Angel Sanchez Valdez

The El Roble mine produces 850tpd with copper-gold ore high grade. Responsible for changing the organizational culture of the mine. During this period we have made expanding production from 350 tpd to 850tpd, building a new tailings dam, expansion of the concentrator plant and development of the new mine at level 1880, which allowed access 2M tonnes of ore copper- gold. The main functions: • Increase production mine 350tpd to 850tpd. • Implement a integrated mine safety. • Leading change conventional mining method to machining, enabling the former company personnel. • Keep an intense exploration to increase resources. • Improve the recovery of copper and gold. • Planning for long-term operation. • Reconciling production from the farm to concentrate on selling refinery. • Maintaining a good relationship with the authorities and influential people.

Vena Resources projects include operations at a production rate of 800 TMD fresh ore. To date we have developed the project Azulcocha till its construction (June 2012) and developing projects in Puno (Esquilache-Pucara-Amantina). - Responsible for the project, from engineering to commissioning operation during 2012, developing the level of detail engineering and construction of any infrastructure project, including process plant, tailings dam, preparation of mine house force, camps, etc., with a workforce of 450 people including engineers, employees and workers. - Management of environmental permits, obtaining the approval of EIA. - Negotiation of surface lands to the communities belonging to the project and the contracts managing for a period of 15 years renewable. - Preparation of Feasibility Report level NI43101 report format - Manager's approval of construction permits and licenses of Benefit, Plant Operations Process, Exploration, Water Use, Dumping, Supplies Controlled Chemicals, Explosives, etc.. - Construction supervision of the Processing Plant, Tailings Dam and General Infrastructure. - Preparation of Mine Development and Underground. - New targets planning exploration.

- Implementation of the Department of Planning and Evaluation Project - 3D Geological Modeling (Surpac), Database Management, Surveying, Administration (GIS), Hydrology, Geotechnical, Infrastructure Design, Planning Open Pit Mined (Surpac, Whittle and MineSched) Calculation of Reserves and Budget. - Preparation of basic information and format Prefeasibility Report on the Company NI43101 Certification Pincock Allen & Holt of Colorado - USA.

- Economic Evaluation of potential projects, based on information Geological Exploration. - 3D Geological Modeling and Management Database Sampling and Drilling. - Intense use of mining software for information management and use of geological exploration

Profile Proj. Low Sulfidation - Cuajone - Southern - Study of Alternatives for Exploiting 800M of tn. low grade ore. - Modification of Model Blocks, Layout & General Haulage routes. - Cone Optimum, Operational Design and Optimization Phases (Minesight).

Rehabilitation 600 Level - Huaron - Plan to rehabilitate the 600 level. - Installation of 1km. rails and preparation of 8 new ore areas (sublevel, hoppers, roads, air, water, energy, hydraulic fill, etc.).