Pulacayo Project Feasibility Study - Apogee Silver

Pulacayo 1 000 t/d Phase I Feasibility Study - NI 43-101 Technical Report
090644-3-0000-20-IFI-100
may provide an additional revenue stream is important because recovery of silver
may substantially enhance project value. Ultimately, optimization of all project areas
to provide the best combined mine and process components and configurations will
reduce cost and enhance operating efficiencies.
Current arrangements for Project access, communication, power and water supply
and labor are sufficient to carry out year-round exploration activities, and with the
necessary upgrades, the same means can be reasonably expected to meet needs
for Project.
TWP and Apogee identified a number of potential plant design optimizations that
could be investigated to save plant CAPEX and to reduce the complexity of the plant.
26 RECOMMENDATIONS
The Feasibility Study indicates a robust Project and TWP recommends that the Project
advance to the basic/detailed engineering stage in support of the Construction of a mine and
Process facilities.
The TWP recommendations are summarized as follows:
26.1 Geology
Additional exploration drilling is recommended to improve the confidence in indicated
resources, especially in the parts of the deposit that are early in the production
schedule.
Additional exploration drilling is also recommended to assess opportunities for
extension of the deposit limits both along strike and down dip.
The resource model should be updated to include any drilling conducted after the
completion of the mineral resource estimates included in this study. As new
information regarding the mineral resource and economic parameters, the reserves
shall be updated
26.2 Mining
26.2.1 Geotechnical
Additional geotechnical study is required to support the basic/detailed engineering.
Geotechnical work should include site investigation, trenching, drilling, topography
and slope stability modeling for all surface installations including the plant site,
campsite, waste dumps and tailings disposal facilities.
As more underground geotechnical information becomes available, a rock mechanics
analysis should be conducted to re-assess the backfill material for mined out stopes,
which could reduce backfill costs.
TWP Sudamérica S.A. Av. Encalada 1257 Of. 801, Santiago de Surco Lima 33, Perú (51-1) 4377473
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