According to the Ministry of Energy and Mines (MINEM), the total copper reserves in Peru would reach 91’721 000 metric tons (MT). Of this total, 56.13% (51’489,000 MT) would correspond to proven reserves; that is, they come from measured mineral resources. On the other hand, 43.87% (40'232,000 MT) would be probable reserves; that is, they come from the indicated mineral resources and require confirmation.

In the "Map of Main Mining Projects and Units in Exploration - 2020 edition" elaborated by MINEM and updated to September of this year, it was detailed that Moquegua is the region leading the portfolio of reserves with a total of 23'255,000 metric tons (MT) of copper, of which 58.21% (13'538,000 MT) are proven reserves and 41.79% (9'717,000 MT) are probable reserves.

The second region with the largest copper reserves is Arequipa (15'413,000 MT) and in third place is Tacna with a total of 12'915,000 MT of copper. Followed by Piura and Junin with 12'375,000 MT and 7'029,000 MT, respectively.