In the first paragraph, yes the tax due would be zero, in general (certain industries and/or countries could harbor exceptions). The final amount paid is independent of the tax rate on profits, though: if revenues are offset completely by expenses, it doesn't matter if the effective rate is 2.4%, 40% or 90%, it still comes to 0. But you want the former if your company is highly profitable.
For your second point, I don't know the specifics in this case. But even if it's just deferring taxes that have to be paid eventually, that can be a huge win, since it lets you collect interest or store funds for an emergency. There are probably other financial benefits too though; maybe someone who knows can comment.
For your second point, I don't know the specifics in this case. But even if it's just deferring taxes that have to be paid eventually, that can be a huge win, since it lets you collect interest or store funds for an emergency. There are probably other financial benefits too though; maybe someone who knows can comment.