Yep, Sailuns are Chinese made. I was skeptical when first thinking about them, but numerous reports of them lasting and have yet to read of one that blew out (surely it has happened, just not mentioned that I have seen), I decided to try them. They did better than the Michelin XTAs that had tread separations on 2 of 4 on my previous '05, and Michelin would have nothing to do with replacing/compensation. My current '15 has the OEM GY G-114s and noticing some uneven tread wear--not from alignment. When it comes to replacing them next summer, will be hard pressed not to use Sailuns.
Simple Tire:
Sailun S737 H------$147
Michelin XTA J------ 370
GY G-114 H-------- 347
Based on my experience with one set (also had Sailun 19.5s on the last 450) I can see that it is easy to get 2 sets for much less then Mich/GY pricing.
Not saying Sailuns are only way to go, but they seem to be holding up very well overall.
I neglected to say that there is also the mounting charge to be considered when buying from Simple Tire, but that would apply to the others as well. I believe the out-the-door price on M & GY are sometimes over $400 each.