Shadow,
In their last report CDU state that ore going to the stockpiles is 23% more than their model plan.
In order to calculate such a number, they need to know what copper is going to the stockpile. CDU has the number as it was used to calculate their 23%.
They are happy to use the calculated result of the number but then don't want the actual number itself released.
What sort of illogical nonsense is that?