Ann: Gold Production Update - Tucano , page-12

All4one, have to point out the "production" aspect arises from their correcting the gold elution process, which was mentioned about 3 or 4 times in the qtrly and causing a high gold in circuit number ( i am not technical). They had hoped to fix within a week and thats what's happened.
These guys really are very good.

but you raise an interesting thought as why do it ONE DAY before the close of the when they could give a whole-of-month number ? Perhaps they also want share price higher