SOLG, page-12

Porphyry copper/gold deposits take roughly 10years from discovery to mining
They can grow very quickly (cascabel they haven't even found the limits yet ) have done roughly 100 000m of drilling as of march roughly only 50 000m is included in the MRE . the boundary they have defined so far is roughly 1.7km long , 700m wide and close to up to 2km deep so you can see why it takes so long , to define the grade every 10m or what ever is required for jorc
The shaded new high grade from the presentations looks like it will be close to doubling the high grade in the updated MRE . the comparisons to newcrestes PNG porphyry shows what happens with the size as the more drilling occurs