It was in the acquisition annoucementThe Lana Corina deposit was...

It was in the acquisition annoucement

The Lana Corina deposit was discovered in the 1940’s but it was not until the 1970’s that any detailed
work was undertaken, including geological mapping and shallow drilling. During this time a local
company, Compania Minera Santa Rita installed several underground shafts and extracted copper ore
from the high-grade breccia deposits.

Following this initial mining and up until 1985, the deposit was exploited by the Compania Minera
Centinela, who processed ore at the nearby government owned El Parral plant (ENAMI), located 5km
north of Combarbala. Mining focused on the breccia pipes and was undertaken using underground
techniques with the maximum depth of the development reaching 160m below surface. During this
time the deeper potential of the system was recognised from both underground sampling and drilling
with significant copper results being returned from this work (Figure 5).