3M is an american company lah bro. Unless you're talking about your car or something else...

Anyway the one good thing I heard about 3M tints is that it's much more difficult to get fake 3M tints since the tint film is embossed with the 3M logo until it's installed. This is unlike the regular V-Kool/Rike Cool etc. tints. Not sure how true this is though, I haven't bought a car to be tinted recently.