There are only several companies that would be large enough to take on a project this size. The copper price has corrected so this is an opportunity buy this company at a slight discount.
The last offer was around $1.70
Announcement page 1 21/05/2013 company received interest in a range of corporate transactions from other parties.
I speculate that those other parties would likely be those with large interests in copper.
There are limited parties who would have the capacity to handle a project this size and take its potential.
A list of companies interest in copper production below. DML would be a good opportunity for them.