Not just overseas writers mind you - there is a quota for more "diverse" authors from the Anglosphere as well. So if you're American/British white, male, or some combo of the three, congrats... despite constituting more than 90 percent of all submissions, most publishers cap off total new authors they'll sign from those demos to 50 percent, quite often less. Oh, and if you signed with Tor, they will not spend a single dime to promote you.
I've literally passed brilliant work up the chain only to have it rejected because a white guy wrote it.