I wouldn't expect to hear people saying that around me, since I'm here in the States. The ones that probably weren't exposed to Tech prior to those collaborations, yet became a fan after them, would be the fans of those artists. Thus meaning, people from their area of the world, ones I don't pass on the street, if you catch my drift.
I'm not trying to say that the collaboration with Ceza caused all the fans he may have over there in Turkey to instantly become Tech fans or that collaboration instantly made Tech's name over there a success. However, one could say that it's the groundwork for getting your name over there in the fact you had someone from over there look you up to work with it.