As the article pointed out, the actual revenue would have been...

As the article pointed out, the actual revenue would have been less than $33m.

I acknowledge that KBL have been successful with their exploration. However, the fundamental question that needs to be answered is whether they are operating at a profit? Until they publish their half year results, we won't know.

We know that revenue is in decline but have costs also decreased? If so, by how much?

A large resource is worthless unless you can produce from it at a profit. Mining economics 101!!