Pulacayo Project Feasibility Study - Apogee Silver

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Pulacayo 1 000 t/d Phase I Feasibility Study - NI 43-101 Technical Report 090644-3-0000-20-IFI-100 In order to proceed with detailed engineering, additional geotechnical studies must be carried out at the location of all infrastructure and along the railway line from the mine to plant. The program must include drilling, surveys as well as laboratory soil analysis and soil dynamic stability studies and contour and elevation surveying. Conduct geotechnical surveys at the location of the TSF to confirm the slope of the TSF and for the stability of the various catchment ponds Optimize the auxiliary buildings layout based on new developments proposed by Apogee and on detailed topography and geotechnical surveys. Evaluate an alternate tailings storage technology that may result in reduced capital cost and footprint. Review opportunities for early completion of construction to reduce start-up times. Further drilling is recommended to expand and delineate the mineral resource on the Pulacayo deposit. 26.5 Financial Analysis Further technical-financial analysis to be carried out as the Project progresses to the basic/detailed engineering stage, and to evaluate the impact of any new data. Consider financial arrangements targeted to further reduce working capital needs. The refinery that will purchase the concentrates should be identified, particularly with a view to identifying and understanding the impact penalty elements may have on the revenue and possibly on the process. 26.6 Environmental and Permitting Ore acid generating potential should be re-assessed and additional ABA (acid-base accounting) tests are recommended. Conduct air quality dispersion modeling using modeling systems to predict future concentrations at and off the boundary of the Project. For reclamation and closure, conduct a complete soil and borrow material inventory focused on moisture retention, erodability and other soil quantities for use in final reclamation and site re-vegetation. 26.7 Water Management Continuous on monitoring of precipitation, surface water flow and water quality should be conducted to ensure compliance through the development, operational, reclamation and closure plan stages of the Project. The mine dewatering system will require modification and refinement as more data becomes available during advanced exploration and initial construction and operation. It is recommended that an in-depth site-wide water balance be prepared. A detailed hydro-meteorological study for supporting the final design should be conducted. TWP Sudamérica S.A. Av. Encalada 1257 Of. 801, Santiago de Surco Lima 33, Perú (51-1) 4377473 Page 295
Pulacayo 1 000 t/d Phase I Feasibility Study - NI 43-101 Technical Report 090644-3-0000-20-IFI-100 27 REFERENCES Surface Mining, Society for Mining, Metallurgy and Exploration, Edition 2, Pg. 397, Kennedy B.A., 1990. Some new Q-value correlations to assist in site characterization and tunnel design. International Journal of Rock Mechanics and Mining Sciences, Volume 39, Pg. 185- 216, Barton, 2002. Preliminary Metallurgical Evaluation of Samples from Pulacayo Prospect, Bolivia, Deepak Malhotra (Resource Development Inc.), 17 March 2003. Experimentación Metalúrgica con Muestra Compleja de Sulfuros Denominada Alta Ley Proveniente del Sector Pulacayo y Perteneciente a la empresa Apogee Minerals Bolivia S.A., Universidad Técnica de Oruro (UTO), Facultad Nacional de Ingeniería, Carrera de Metalurgia y Ciencia de Materiales, Laboratorio Concentración de Minerales, November 2009. Reporte N°5-TWP-2011/Pruebas de Cianuración Proyecto Pulacayo - Bolivia (ED&ED), June 2011. Reporte N° 01-TEC-2011, Pruebas de Flotación Diferencial Pb/Zn Proyecto Pulacayo-Bolivia, 03 October 2011. Report of Investigation, Sedimentation Bench Scale Tests, Flotation Tailings, FLSMIDTH SAC, November 2011. Evaluation Geomecanica del Proyecto de Minado en la Mina Pulacayo-Bolivia, 2011. Mineral Resource Estimate Technical Report for the Pulacayo Ag-Pb-Zn Deposit Pulacayo Township, Potosí District, Quijarro Province, Bolivia, Peter Webster, P.Geo, Michael Cullen, P. Geo, Mercator Geological Services Limited, 23 May 2012 Technical Report on the Preliminary Assessment of the Pulacayo Project, Pulacayo Township, Potosí District, Quijarro Province, Bolivia, R. Pressacco,Msc(A), P.Geo, G Harris, CEng MIMM, M.Godard, PEng, C. Jacobs CEng MIMM, MICON (Mineral Industry Consultants) 25 June 2012. Experimentación Metalúrgica con Muestra Compleja de Sulfuro Perteneciente a la empresa Apogee Minerals Bolivia S.A., Universidad Técnica de Oruro (UTO), Facultad Nacional de Ingeniería, Carrera de Metalurgia y Ciencia de Materiales, Laboratorio Concentración de Minerales, August 2012. Surface Water Feasibility Assessment Final Report, Klohn Crippen Berger, October 2012 Revised Mineral Resource Estimate Technical Report for the Pulacayo Ag-Pb-Zn Deposit Pulacayo Township, Potosí District, Quijarro Province, Bolivia,Peter Webster, P.Geo, Michael Cullen, P. Geo (Mercator Geological Services Limited), 19 October 2012. Report 12/082: Laboratory Flotation Optimization Testwork and Locked Cycle Flotation Tests on Ore Samples from Apogee Silver, Hennie Stallknecht (Maelgwyn Mineral Services, MMSA), 10 December 2012. Estudio de Evaluación de Impacto Ambiental Analítico Específico (EEIA-AE) Proyecto de Explotación de Minerales Complejos y Construcción Presa de Colas- Pulacayo, ASC Bolivia LDC, January 2013. TWP Sudamérica S.A. Av. Encalada 1257 Of. 801, Santiago de Surco Lima 33, Perú (51-1) 4377473 Page 296
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Pulacayo Project Feasibility Study - Apogee Silver

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