Corporations know how to pay fewer taxes
Almost every company in the world wants to pay fewer taxes. Some companies are just better at it than others. It works out for most of them, however, to pay few taxes because of expensive lawyers who help them do that very thing. I would add that this one is a pretty clever idea, take a look for yourself.
Converse stumbled upon a major loophole that lets them make a ton of money on their shoes, all the while paying merely a fraction of their required taxes. This is an example of the system being worked on a mass scale.