From the link

"If Teck’s CESL Process was brought to somewhere in the Golden Triangle, seemingly the ideal location for a new refinery, considering all the copper-gold deposits grouped so closely together, it could prove to be just what the area needs, i.e., the key to unlocking the huge mining potential of the Triangle which up until now, has stayed locked within the area’s vast copper-gold porphyries and epithermal gold deposits.

A shared refinery would lower each project’s transportation costs and make the economics workable even if copper and gold prices were to fall, which seems unlikely given current market conditions."