Through TSMC for example has margin >40%. Which isn't that surprising I mean there is not much competition. Intel doesn't (yet) provide their capabilities to anyone else, and the other competition is behind enough to not be an option for many things, especially high end and/or high efficiency.
What is quite fascinating is that while TSMC is a close to monopoly(/duopoly if you count Intel) in many sectors and takes advantage of it they seem to have successfully resisted the common problem of such companies stopping/slowing innovation and similar problem. I'm not sure if it's related to the additional pressure of them being on of the main lifelines for Taiwan or if they have just pretty good management or if it's because they still competition oligopoly main customers do push them to do so.