cdu vs aoh comparison, page-14

Also I would add that when the high grade is mined out then the average grade of Rocklands will drop further although the high grade area is small by comparison.

It does beg a question...what will the market price CDU at going forward..20 years (just another mine) low grade producer or a 3 to 5 year (trust us there is way more copper in the ground than we can report) high grade mine.

Still seems like a high risk punt IMO.