Here are the details on the Peruvian project:

Description: The Quellaveco open pit copper project contains reserves of 938Mt of copper and molybdenum ore. It is currently at the feasibility stage. The project, scheduled to be at full capacity in 2015, will require 4,500 workers during the construction phase and will then generate 1,700 jobs during the ensuing operational phase.

So they don't have gold or silver....Feasibility stage like us...